Ddr5 imc voltage 2V. I have VDD_SOC = VDD_MISC set to 1. 536 to 1. Starting at 1. Can I go any higher like 1. 42(make sure both pages are set). MC voltage = VDDR/VDIMM replacement. 25 > 1. Skill 6600MHz CL34 2x16GB (F5-6600J3440G16GX2-TZ5RK) / Asus ROG STRIX GeForce RTX 4090 I assume you’ve tried cranking VCCSA/VCCIO (or whatever the IMC voltage is called these days). please give me tips to help me get this kit stable. No matter how high I pushed the IMC or SA voltages couldn't get it stable. In the same way, high DDR4 Gear 2 (that runs at significantly lower timings than DDR5) will be as fast or a bit faster than the Gear 1 at a lower clock. I receive voltage rollover on the IMC at 1. 4 CPU VDD2 1. 25V as well from whatever it was set to after enabling XMP. 4 to see if more voltage helps). 3V (assuming the IMC voltage is the same as the CPU SoC voltage), but can't figure out if the DDR5 EXPO voltage follows the IMC voltage. It should be the same method for Hynix M-Die as well. 3v but 1. 1600. voltage. Motherboard wise - not all 4x DIMM boards can do 7000, 7200 or beyond. 13900K, Z790 HERO, 7800c36 Klevv bare sticks, 4090, 2x360+Mo-ra3 cooling. Jump to Latest 12,561 - 12,580 of 31,993 Posts. On 12th gen, VCCSA controls the system agent voltage, which does drive part of the IMC. Was able to boot into Windows (Windows 11 if that matters) but continued to BSOD with simple tasks. Jump to Latest 301 - 320 of 549 Posts. 4x DIMMs are hard on any IMC, but especially slow on ADL's DDR5 IMC, lopping off 1200 MT/s in the worst scenario (2x SR DIMMs in a two-slot board vs 4x DR DIMMs in a four-slot board). 40V was enough for the same on older BIOS. 45v. 14900K - Stable at DDR5-6800 IMC voltage is 1. Skill DDR5 32GB (2x16GB) 7600Mhz Trident Z5 Royal Silver (F5-7600J3646G16GX2-TR5S) >> Gigabyte Z790 AORUS PRO X (s1700, Intel Z790) Encore very easy, same with the Aorus Pro X where it was 1st tested, on the Aorus Pro X, it uses a tad more less SA and IMC voltage to re-train every boot stably on 8K MT's. because 1. Reply reply flowlikecoffejelly2 • all i have is xmp enabled on a msi mobo z690 MSI have bipolar disorder: With XMP enabled, they tend to raise the IMC-related voltages sky-high, while simultaneously having a low threshold for the red=dangerous color when you raise certain voltages yourself. 34 for anything 7000 and under. 8000 passed 50mins of the stability test but at 1. Intel 13900K - Asus Z790 Strix-E - RTX 4090 Founders - G. 3 * Tune Memory Controller voltage, values between 1. that refutes the need for higher imc than dimm voltage for me. Go Results so far with 1. ) the maximum is 6000 Mhz. 4 RAM VDDQ / 1. use 36-46-46-X primary timings, reduce VDD/VDDQ some possibly to 1. , Ltd. If the cpu & mobo combo still the same, ram changed to faster freq and tighter timings, it could be: - imc limitation on the CPU (for K series can be stabilized more by messing the SA or IMC voltage - ram slot (even nowadays, ram slot can be binned haha) on the mobo - bios capabilities 2. 1 16 of 28 Go to page. 45V, but that was well past the voltage that should be required or what's recommended for 24/7 Version A5 was terrible for dual rank DDR5 overclocking (worse than earlier versions), couldn't even get 6400 stable with it. SKILL International Enterprise Co. SA voltage is tied to the IMC, ddr5 runs in gear 2, so your IMC is running at 1400mhz with 5600mhz ram. Feb 3, 2023 #1 HWiNFO64 shows my memory voltage varies a lot. / Noctua NH-D15 chromax. Lastly is System Agent. Thread starter Poots; Start date Feb 3, 2023; P. SA over 1. It was more stable on 1,380 V With BIOS version 7D30v17 (Description: - Fine-tuned memory compatibility. News Reviews Raptor Lake 13th Gen DDR5/DDR4 IMC Discussion. Instead you should have it around 0. I bought it in Japan after the 12th generation CPU and DDR5 That is a vastly different scenario from a RAM that's overclocked to the max, since that hammers the IMC much harder. 25v or 1. SKILL Ripjaws F5-5600J3636D32GX2-RS5K), but the bios won't even let me boot with XMP since I added 2 more sticks of the same. 5v. This is why 2x24GB DDR5 kits have a point - they overclock easier than 2x32GB, and still give you a higher capacity than 2x16GB. 5 volts😂😂 Reply reply more replies More replies More replies More replies More replies More replies. 2v under the Dram voltage. 7200MT/s is about as high end as a 6 layer board can handle. I have a stock 13900k and a z790i msi gaming edge motherboard. Save Share More specifically the DDR5 voltage Buildzoid is referring to in this video. Next, see if IMC voltage I recently picked up teamgroup delta ddr5 7200 cl34 16x2 memory and it boots just fine but crashes in about a minute running aida64 stability test. 4v, the system would boot into Windows and I could successfully run various benchmark software. Please note this BLUF; I've been running a 64GB (2x32GB) DDR5-5200 EXPO kit with its voltage of 1. My imc voltage was stable at 1. 1V, meaning DRAM voltage/VDDQ both at 1. 3sa. Herald · Registered. 5. This voltage interacts with the PHY or Physical Layer present on the CPU and may lead to long-term degradation of the IMC if set too high. And it takes Intel running at about 7600-7800 and aggressive timings to beat Raptor Lake 13th Gen DDR5/DDR4 IMC Discussion. VDD handles the internal components for chip-to-chip communication on the actual DDR5 modules (which is why it Post your max bootable frequency and max stable frequency + primaries here, for everyone's reference. This Samsung green is a DDR5-4800 16G*2 co-branded with ASUS. Increased CPU SA voltage to 1. On DDR5 memory, the majority of the voltage regulation happens on the module by the PMIC. 35V for the 12th/13th Gen as going beyond On a separate issue, your IMC voltage is running at 1. 26 to get stability at 6400 (2x32) If you are running 2x16 then you get away with having badly tuned voltages at 6400 though. 59vdimm 1. 6, but honestly for long term PLUS stress testing try low 1. 5 V at stock settings when it’s a light load. If you’re curious about it, search up monolithic vs chiplet CPU design. My i9-12900KS doesn’t have the strongest IMC, but at least DDR5-7200 can be set completely smoothly and I purchased some Teamgroup DDR5 6400 memory and I'm having trouble getting it to post to windows. 4v, reduce SA voltage some due to the reduced IMC, DDR5 frequency, and reduced Cache frequency. 45 V, relevant PLL’s 0. 30-1. 485V (voltage mode “OC Mode” must be selected in order to go above 1. 5 IMC. Go. 1 cpu where amps alone can cause instability. 14900K | Corsair Dominator Titanium (First Ed Gigabyte B760 Aorus Elite Ax DDR5: Cooling: ARCTIC Liquid Freezer II 240 + P12 Max Fans: Memory: Another trick is to type in all loose values with high voltage, overclock to the desired freq and work your way down. I've noticed voltage "holes" for example, between 1. Make it make sense. com Open. Default DDR5 JDEC is 1. Cranking up SA can just make it more unstable. Start with the IMC voltage at 1. 25v just in case and bcus I'm done messing with it, i just want the PC CPU VDD2 / IMC Voltage, this is a voltage rail for the IMC CPU VDDQ / IVR TX, this is another voltage rail for the IMC VCCSA / System Agent, this is a third voltage rail for the IMC As many others have stated, DDR5 at this speed is definitely in the overclock/unstable territory for current CPUs and motherboards. 35v. Once you find max frequency, if it's closer to XMP than JEDEC start stepping down the voltage until you find the minimum. Like with anything related to signal IO and overclocking, often sharing what works for one CPU to another is all one can do. Jump to Latest 421 - 440 of 555 Posts. Processor Interfaces DC Specifications. overheating can not only throw errors, but eventually degrade the motherboard. VCC Voltage Identification (VID) DC Specifications. post edited by x3rulion - 2023/02/08 12:53:53 If you fail initially, set voltage up 10mv (1. There is not a direct correlation to DDR4 G1 and DDR5 G2 speeds, imc clock is not the only limiting factor, if Raptor Lake 13th Gen DDR5/DDR4 IMC Discussion. 25V, 1. Is my memory voltage really unstable or is it a sensor/software issue? Actually that IMC VDD value is a bug in HWiNFO, it doesn't properly report it on this mainboard model. Jump to Latest Big-PC - Asus ROG X670E Hero, Ryzen 9800X3D, XPG ROG DDR5 6600mhz 2x16GB @ 6400 C28,37,36,50 Cooler Master ML280 Mirror, Nvidia RTX 4090 FE But some motherboards/BIOSes struggle to train after a certain amount without manual VTT voltage Potentially, yes. The XMP profile my ram came with is 1. 35-1. Try a higher IMC voltage. 2v, but I would raise IMC voltage and IVR VDDQ TX to 1. 365 (min) - 1. 45v and SA voltage to 1. I'd hope AMD's DDR5 IMC Insane IMC you got there! I need 1. Skill DDR5 7800 CL36 - Corsair HX1500i (2022) - Samsung 990 Pro 1TB (Boot Drive) Samsung 990 Pro 2TB (Game Drive) WD Red Pro 16TB (Storage Drive) - Arctic Liquid Freezer 420 ARGB (CPU Cooling) - Arctic P14 ARGB x 8 / 2x Noctua 40x10 (RAM Cooling) - Fractal Meshify 2XL (IMC) voltage Hi everyone, i'm trying some settings on the new z790 apex with my DDR5 GKILL Z5 8000 kit. I see some running higher IMC voltages, so looking for some anecdotal experiences. Should be plenty for 7200. This voltage is generally the sweet spot for >6400 MT/s. 2 or 1. Asus's auto settings just don't seem to work AT ALL with these Samsung ICs. So it will have more to do with the IMC-related voltages, for the memory controller, also see here. My XMP 1 profile had already set both of those values to 1. Some CPUs also fail to POST if using more than 1. 50v, so Nope, VDD2 is an external voltage on your board between the dimms and the CPU. 3v, to 1. 095v IMC on these GIGABYTE boards. 525 I've been testing voltages due to the recent concern for SOC voltage for Ryzen 7000 series CPUs. 400 ) MC 1. 2) Under DRAM Timing Page set Tweak Mode 2. Note: Yes, DDR5 is significantly more difficult to tune than ddr4. Maximum 1. 3 max should be enough usually. 4V or lower on the IMC. You'll likely need to tune VCCSA, CPU VDDQ (Not sure what it's called on MSI), and IMC VDD (Memory Controller Voltage). VDD handles the internal components for chip-to-chip communication on the actual DDR5 modules (which is why it assists with helping achieve tighter timings, opposed to higher frequency). general ram voltage for ddr4 1. You might want to consider lowering that since that's on the high-end of what's considered safe. 1. Some sticks from corsair, Adata, fury kingston have 1. Lots of high 8000+ clocks run 1. 45v Which ram kit do you have? can you post the specs Edit: using 4x 16gb Corsair Vengeance DDR5 6000MHz with XMP enabled, I was able to run OOCT memory test for an hour without any issues showing. 1 v. 45v like F5-7800J3646H16GX2-TZ5RK, so is there a consensus into how much voltage is safe for DDR5 for 24/7 operation? G Series Ryzen CPUs utilize a different build technique than the “Regular” Ryzen CPUs and don’t have the same Infinity Fabric Bridge so can handle way more voltage. 4V and you are "maybe fine"? Even IMC voltage, it seemingly runs DDR5-6000 at 1. 02v until it's stable. As a result, daily use of VDIMM voltages above 1. The three main voltages there are VCCSA (aka CPU SA Voltage), VDDQ and VDDQ2, also see here. Let's Asus calls VDD2 MC Voltage and CPU VDDQ IVR TX Transmitter Voltage. AMD's DDR5 IMC is very limited compared to what A die can manage on Intel platforms. 4V to 1. 95v) so getting high speed RAM, like the 7000MT/s you mentioned orabove, isn't possible (on ADL at least). From what Ive seen on reddit, most users are able to >> G. lol . Make sure you monitor temperature on the ram chips as they'll crash if they get too hot (typically pretty low 50-60c might even be too hot but idk ddr5). From what i know, the asus coloring seems fairly accurate. I read that IMC voltage increased might help but haven't seen such option in my bios. 55 for cl 30 ~ 1. 4v Advanced Memory Voltage / IVR Transmitter VDDQ Voltage: 1. On Asrock, it's either VDD_Imc or VDD_cpu, Am i correct in assuming IMC is the one I want to change for the external memory controller power? I assume VDD_cpu is for the internal memory controller? Any help would be greatly appreciated Non-K ADL and RPL CPUs have locked System Agent voltage (between0. 4DRAM voltage: 1. 435 in BIOS, stability gets WORSE. specs: i9-13900k asus maximus hero z790 teamgroup ddr5 2X16 7800mhz A-DIE The OC relevant components of the test system are an intel i9 14900k (ES), 2x24GB DDR5 Corsair Dominator Titanium 8000MT/s CL38 and Watercool Heatkiller IV CPU water cooler with MO-RA3 420 radiator. 7600x 5. While VDDQ_TX is a supporting memory voltage, CPU IMC it is not, as specified by Intel for Dominator titanium 2x48gb DDR5 6600MT/s x2 kits (sk hynix m-die, CMP96GX5M2B6600C32) Also testmem5 is not the hardest test to pass, try y-cruncher to find stability issues with regard to the IMC quicker. However I didn’t really need to change it much at all. 16v and increase it in steps of 0. If you crash then go back and change the voltage, again I don't use ddr5 so I can't say what is normal voltage for it. Keep SA at 1. I have your mobo, XMP worked great with 2 sticks of DDR5-5600 (G. 45(start at 1. DDR4 DC Specifications. 25V Because of how DDR4 and DDR5 memory works differently, where as DDR4 voltage are still supplied on the motherboard, and how the architechture of the ic in ddr4 itself, it limits the capability of ddr4 itself, hence why ddr5 is more like a buffed DDR4, but with advanced architecture for the IC itself and how they handle the data throughput is different from ddr4 + Also note, this is with the IMC voltage at auto which reads 1. However, if you at least boot with the Launch AGESA 2x 16 GB DDR5, they start with the JEDEC settings for 4800 Mbps and tCL 40. I can for run 2x16gb b-die 4133 14-14-14-28 269trfc CR2 at 1. 4v on ddr5 is fine but on certain dimms u may need addtional cooling. The System Agent voltage defaults to 0. VCCCORE DC Specifications. G. It scales very well. But 1. 4V affect the CPU SoC / IMC? Yup DDR5 seems to be a lot more voltage sensititive compared to DDR4. First, load a memory profile for say 6200 from your motherboard. 375V mc to be stable @7000c30 tight. 4v DDR5 Memory Voltage. 3v can be even more unstable than too low. 6V is safe I have applied XMP and attempted to tweak the voltage from the XMP values of 1. I mostly ran it at DDR5-6400 just for peace of mind. It definitely feels like a launch IMC in that way. You should be able to run DDR5 6200 at 1. 2v. I've noticed my MSI Z690 DDR5 board will do that for some of the related rails like VDD - VDDQ. It's all about the CPU IMC. Please provide your CPU model, RAM die type, and motherboard model and BIOS as well, to the best of your VDD2 (IMC VDD, MC Voltage): 1350 (-50) System Agent: 1350 (+-100) Here in the diagram, the clock rate is normalized to the actual clock of the IMC (factor 4 for DDR5, factor 2 for DDR4) and then shown with an offset of In my experience, the voltages that affect RAM stability the most are IMC VDD and DRAM VDD. Update: Trident Z5 RGB DDR5 8000J3848H16GX2-TZ5RK XMP profile 1 works with i9-13900KS on an EVGA Z690 DP (bios 2. 45 imc voltage. 800V VDD 1. 4 to 1. All of this is very helpful as I wrap my head around all of intricacies of DDR5 The RAM is T-force DELTA RGB ddr5 rated for 6000Mbps 30-36-36-76 @ 1. 60 V on Ryzen 3000 and 5000 and 1. 425 then 1. 25 or 1. 25 volts. 25-1. 8714 posts · Joined 2011 Add to quote; Only show this user #1 · Oct 20, 2022 (Edited For the most part (and from what I understand), the most dangerous voltage for DDR5 is the VDDQ voltage. Skill Trident Z5 Neo RGB Series 32GB (2 x 16GB) DDR5-6000 PC5-48000 CL30 DRAM VDDQ Voltage: 1. 20 - 1. 380 (min) - 1. with some operations allowing, unreliably, 2 clocks less. Including Thunderbolt 4, WiFi 6E, DDR5, PCIe Gen5, and a powerful VRM solution, the ASRock Z690 Phantom Gaming-ITX/TB4 is rich in features, and hopefully a worthy successor. 500 VDDQ 1. They are actually on the same rail AFAIK. I'm running stable now with those settings keeping the ram frequency on 7000Mhz. DDR5 clock rates and timings with DDR4 already today, Rocket Lake makes it possible! Still, DDR5 will be as fast or a bit faster. 875v (might Due to DDR5, the Gear 2 mode with a 1:2 ratio between IMC and RAM is used here. It also does not offset-increase voltage, nor stops clock-gating I know that populating all dimms will be more stressful for the IMC (at least, it was the case for AM4 cpu) F5-6000J3040G32GX2-TZ5NR - Overview - G. SA at 1. 10 voltage. Jump to Latest 461 - 480 of 555 Posts. 20 is still well within safe margins. Those are TSMC 5nm and 7nm chips by the way. Disclaimer: some voltages may be pretty high but i watched frame chasers video called "ddr5 overclocking tips and tricks" and then it made a lightbulb shine in my head and made me realize that sometimes people on reddit can be kind of ignorant(not fully but partially) but arent we all a little bit😂😂 Imc voltage: 1. SA (System Agent) Voltage: have also already announced further single and dual-rank kits with Hynix DJR ICs and XMP clock rates of over DDR5-5000. This says the max voltage for the System Agent and For DDR5, lower SA seems to be better, and above 1. Reactions: 4/ Try VDD2 CPU or (not sure how in ASUS it is) IMC Voltage set around 1. 4-1. 35 -1. 1v the same it does at 1. Didn't help. September 7, 2024 . Tested without XMP, with just increased frequency, still errors even at 5600 with auto voltages (IMC at 100) but stable at IMC 133 (auto voltages). The new DDR5 specification moves the voltage regulation from the motherboard to the individual memory stick. 38V. Are they linked, do they need to be the same and can having an EXPO voltage at 1. 45V is a very high XMP voltage for DDR5 I re-tested the Z690 Carbon WiFi in December. Joined Jan 7, 2023 · 1,795 Posts #15,304 You might be able to push further IMC voltage by increasing or lowering the other voltages But I dont use settings on edge of stability where increasing multi by 2 crashes my imc, nor run 6. Poots New Member. 2 and 1. 1. 32v-->1. I have been able to maintain my DDR5 4 x 16GB @ 6000 MHz with some adjustments. CPU: 13900k, running stock, no ASUS multicore enhancement. 2v (lowest I could go and still consistently Pass 20min) 4) Memory Controller Voltage High voltage combined with high current is what causes degradation. 4v stable on xmp2 and running 2- 2tb a440s in raid mode. 45v Trying to get more info on how to set VDDQ voltage on Alder Lake - should this be set to equal VMem/VDIMM? I know VCCSA is tied to IMC but can find little info on VDDQ although I’ve seen some people bump it to match VRAM voltage. 5 pF maximum probe capacitance, and 1 MΩ minimum impedance. 45 V IMC voltage (SA 1. For reference I found 1. 3sa 1. 54 actual) for the DRAM and push tighter secondaries and tRFC, testing that right now. I see a DRAM VDD/VDDQ setting but also a separate DDR5 voltage control page for VDD A0 and VDDQ A0 voltage settings. 5b and see if it succeeds. 1 24 AM I correct to assume that IMC capability and SA voltage affects the frequency of RAM much more in Gear 1, but CAS latency ability of This is because you can get by with a lower QLCK ratio at the same clock rate and thus reduce the load on the IMC. 5v IMC VDD. - i haven't done any stress testing with the lower IMC voltage beyond just using it. Not worried about degradation per se, unless someone has experience of this nuking the IMC in a few months. There are three IMC voltages that you would need to play with, VCCSA (might be called just SA or System Agent voltage, I forget how ASUS labels this), VDDQ TX (ASUS calls this IVR Transmitter voltage), and VDD2 (ASUS calls this Memory Controller voltage). My kit seems to run stable right now with 1. 960 V). 375v Advanced Memory Voltage / PMIC Voltage: By Per PMIC I found on the internet another configuration, but it didn't work either: Ai Overclock Tuner: XMP II CPU System Agent Voltage: Manually @ 0. 45 is too much for VDDIO) I believe Hyjinx M Die (not sure about the die though) - G. If yes, run VT3, otherwise keep tuning SA. Ive trying messing with the IMC voltage to 1. · Registered. rather communication difficulties I am trying to stabilize DDR5 7200 on PRO Z790 A WIFI and was wondering the safe voltage limit for CPU VDDQ and VDD2 that wouldn't degrade the IMC in the long run. Known as the PMIC, the new memory voltage controller is responsible for ‘bucking’ the voltage down to what Increased DRAM voltage from 1. Kaliz · Registered. The DDR5 PMIC has two input voltages: 5V and 3. The kit you bought is 100% BLUF; I've been running a 64GB (2x32GB) DDR5-5200 EXPO kit with its voltage of 1. K. 3. 23 VCCIN Aux 1. 42 for cl 32 ~ 1. The difference isn't very significant but in some benchmarks based on games, I see between 0-5FPS better results on DDR5 when the average is 70-100FPS. which in itself was elevated from the JEDEC voltage of 1. 25V (CL36-36-36-83), but really want to know if I can upgrade to a DDR5-6000 EXPO kit at 1. Processor Power Rails DC Specifications. 405 (avg) VDDQ (SWB) Voltage: 1. Once I got to 7200 the imc needed 1. Picked up a 14900k, GSkill Trident Z5 DDR5-8200 CL40-52-52-131 1. 35v ram/IMC, etc. 4 CPU VDDQ / 1. 13900K - Barely stable at DDR5-6600 IMC voltage was 1. V-color LOST ARK Manta XFinity RGB DDR5 7200 . 1v VTT would be 1. Its the voltage for the IMC and affects ram frequency and timings. Intel i9-13900KS / Asus ROG MAXIMUS Z790 APEX / G. I wouldn't increase SA as the default for that is absurdly high. It's important to raise it for DDR4 overclocking, on DDR5 it's mostly better to have it at stock or just above. 005v below it, so 1. 08) and an AIO CPU cooler, so my initial issue was inadequate processor IMC. BLUF; I've been running a 64GB (2x32GB) DDR5-5200 EXPO kit with its voltage of 1. Work your way up until you find the fastest that's stable. Even my current 12900K can do 4000 at 1. DDR5-7000 was the maximum I could go and I had to enter all the voltages for that too. This is why Ryzen CPUs can even go to 1. Tune CPU System Agent voltage, values between 1. 3 V SOC voltage. I’m currently upping imc voltage incrementally from 1. 4, still errors. Z790 (4x16 GB): Corsair Vengeance LPX 64 GB (4,000 MHz 18-22-22-42) My SA voltage is set to Raptor Lake 13th Gen DDR5/DDR4 IMC Discussion. 4v was the most i should use for 24/7, but DDR5 is suppose to be lower voltage than DDR4, so just wondering how much is a safe voltage for DDR5? im seeing even XMP modules going to 1. black / ASRock Z790 PG Lightning / 32GB Kingston Fury Beast DDR5 @ 6400Mhz CL32 / PowerColor Radeon RX 6950 XT Red Devil 16GB @ 2700Mhz / Samsung 980 Pro 1TB / WD Blue SN570 2TB / Corsair This implies VDDP should be less than 1. 500 IVR ( VDDQTX 1. 3) Under Advanced Memory Voltages set Memory Controller Voltage to 1. Motherboard automatically set SA to 1. Try Tweak Modes 1-2. I suspect the vccsa and imc voltage need to be upped, possibly dram voltage as well from 1. So far it seems like four sticks DDR5 at 6000MHz with 7950x is doable. at least turn the FCLK to the stable maximum of 2167 with 1. 45v for the IMC voltage and 1. Day Theme You can watch right upside Hwinfo Sa voltage red color 8000cl34 SA 1. 4. 45v, but cant keep it stable during testing. 35 is considered the “safe” voltage limit for Ryzen G Series, I just like to live on the edge lol. I think I'm close, maybe another couple mV on imc, but not sure if pushing farther is advised? DDR5 overclocking guide (basics) vintologi. I've also seen some CPUs do I can boot and play a game for around an hour and then the game crashes. ASRock once again brings the popular Phantom Gaming line to the ITX sector. 35vddq 24/7 (tm5 12 cycles , linpack 100 Higher imc voltage isn't always better, i had to drop mine to 1. Antec Storm T3 Fans, Dual And should I tweak the IMC voltage or just leave it on auto? Thank you very much! Reply reply rulik006 • CPU VDD2 1. 3 - 1. 51 v, soc = 1. If you set it lower, the IMC makes up its own tRAS to use. I’m at DDR5 7600 now but only stable with 1. You're probably hitting board and IMC limits. Joined Dec 5, 2020 · 258 Posts #960 *Official* Intel DDR5 OC and 24/7 daily Memory Stability Thread. PMIC stands for Power Management Integrated Circuit. I am building a workstation for a friend and got 64gb of ddr5 5600 and when i enable xmp, it For the most part (and from what I understand), the most dangerous voltage for DDR5 is the VDDQ voltage. VDD2 DC Specifications. 5 when it comes to SA, less is more for DDR5. 43v, VDD and VDDQ to 1. 4v or is that too high for everyday use? Thanks and at what timings. Which settings is for adjusting the DRAM voltage to As a side note, DDR5 seems very sensitive to too high SA voltage. 45V is safe CPU VDD2: upto 1. Set SA voltage = 1. 38v range) DDR5 speed on Gentoo upvotes As for the whole "gobbling volts" thing, I prefer the method of just setting your max voltage and lowering the timings from there, so that doesn't really matter. Sort by date Sort by votes I have just found that I can run my kit at 7200 @ 1. 3, VDD2 and VDDQ 1. Admittedly, this is an extremely theoretical scenario, but it Or is running 7200 DDR5 on any board pretty much the same unless it is an Asus Apex or MSI Unify X. At 7800, you're likely at the limits of what the 13900K IMC can handle. If i try to set the DDR5 with XMP (8000mhz) sometimes i'm not stable, i've blue screen or freeze in game. Had the a440 pro special series when it first System agent max 1. 9 Big-PC - Asus ROG X670E Hero, Ryzen 9800X3D, XPG ROG DDR5 6600mhz 2x16GB @ 6400 C28,37,36,50 Cooler Master ML280 Mirror, Nvidia RTX 4090 FE Baby-PC - I was thinking of reducing DDR5 frequency to 8000 MT/s, IMC to 1. Smaller node doesn’t necessarily mean more sensitive to voltage. 35v-- Set to 1. I might try memtest86 to see if it's fine there. I read the first page. 1 V in bios, but both actually hit ~1. 31v by default. The benefit of A die is possibly hitting 7600-8000+ on BLUF; I've been running a 64GB (2x32GB) DDR5-5200 EXPO kit with its voltage of 1. 450V Since the CPU voltage was set to a range that can pass most famous bench tools, it was set higher than the voltage setting such as simple Cinebench. 3v, despite having the latest BIOS, please either disable XMP/EXPO/DOCP or manually adjust the SoC voltage in the BIOS so it stays below 1. Then try IVR VDDQ 1. 2v and dram voltages at 1. 20 didn't work. Mobo: Asus ROG strix z790-f. 45 without much change in temperament, but I have a feeling there are probably things I should look at with the IMC and maybe some other settings and just wasn't sure where to start, all the people talking about DDR5 are across so many boards, CPUs Memory DDR5 Voltages. 80V which had me a bit worried but it seems like 1. 65V is red. Try lowering SA a bit to 1. IIRC buildzoid/hardware unboxed said most 13th gen chips can handle 7200 MT/S, but I imagine you could still get a really shitty one that could only do 6800 or 7000. 3, is it called MC voltage in bios? also what is a safe max dram voltage to use on ddr5? I recently built a new PC with TeamGroup T-Force 2x32GB DDR5 6000mhz RAM and enabled EXPO II in Asus BIOS settings, but the system kept POSTing in safe mode. Click to expand Thank you so much for the detailed information. morph. Here are the suggestions from BZ: RAM / IMC voltages VCCSA: upto 1. 43v so this may also reduce the CPU VDDQ / VDD2 voltage requirements as per here. However, pushing a stable DDR5 7800 is a bit optimistic. Adjust SA voltage up or down, run 2. no blues screens though or anything. And to answer your question, frequency is a bigger stress on IMC than timings. VDD_CPU Voltage was set to 1. Vcc1P8_PROC DC Specifications. 35V 48GB (2x24GB) F5-8200J4052F24GX2-TZ5RW, and an Asus Apex Encore board. 5v, keep tREFI at 131,071. 4 and I didn’t think I should push it to 1. 15v, IMC voltage at 1. 15V according to HWInfo. I think thats including the IMC voltage. 40V (CL30-36-36-96) without issues? (assuming the IMC voltage is the same as the CPU SoC voltage), but can't figure out if the DDR5 EXPO voltage follows the IMC voltage. The default voltage of the kit is 1,45,. Try using 1. BIOS v. 6v and VDDQ TX can go up to 1. * Try increasing VDDQ and VDD by 20-30mV. 4v DRAM VDDQ Voltage: 1. Not every silicon is the same (talking about IMC from the CPU), and you might have to dial it back a little bit unfortunately. 3V. 40 What is the limit for IMC voltage on these chips? I'm pushing for 8600 but I'm currently at 1. Hello, im trying to overclock gskill ddr5 7600mhz to 8000mhz. As long as it's within spec, it's "safe" voltage. 13th gen has a stronger IMC. 95v DRAM VDD Voltage: 1. Seems to be heavily affected by the motherboard, BIOS, as well as memory slots and capacity, so no single value will work for every environment. A cursory glance on the internet tells me for DDR5 SDRAM, the upper range is 1. Let me know if you have any breakthroughs on getting your kit stable and what voltages you changed. 4 RAM VDD SA Voltage left to auto, which is 1. Now, in that thread, he deals with a very high-end DDR5 kit that he pushes above DDR5-7000. 410V CPU SOC Voltage: CPU VDDIO/MC Voltage: Misc Voltage: VDDP Voltage VDD/VDDQ: ( I get these but i read that VDDIO has to be = to or > than the highest one out of these but i feel like 1. I don't have a graph, but it's about exponential voltage scaling - at least with my testing: (if i remember correctly) ~ 1. SA doesn't tend to scale well with RAM frequency, and most can run 8000+ at 1. 1 22 of 28 Go to page. CORSAIR Vengeance DDR5 64GB (CMK64GX5M2B6000Z30) ASUS ROG Thor 1000P2 Inno3D GeForce RTX 4080 iCHILL X3 BIOS changes: But that would be where I start, as that is the IMC/IO voltage. 41v to no help. VDIMM=MC(IMC) Voltagelook in Bios right up corner there you see the MC Voltage, don´t go to high 1. 20-1. But i've AMD officially supports up to DDR5-5200, with two RAM modules mind you. Most people are not able to run their ram faster than 7000 mhz without issue 24/7 365. TX is internal IMC voltage in your CPU, just like SA. 45V is safe VCCIN: upto 2V is safe CPU VDDQ: upto 1. Bump these up in small increments. I reduced CPU VDDQ and VDD2 to 1. 4 VDDQ should NOT be within 0. CPU VDD2 Voltage: Voltage for the CPU DDR5 memory data pins and I/O supply voltage What are people running for system agent voltage on alder lake systems with ddr5. Try: 1) Setting XMP II. run XMP through the BIOS will it automatically clock from the stock cap of 4800 to 6400 and then I can overclock via voltage control to say 6800 or higher based on my CPU and MOBO limitations 2) you run 4 x DDR5 modules (instead of 2) and that leads to another speed penalty: These are the speeds guaranteed by AMD for the current 7XXX CPUs: 2x1R : DDR5-5200 2x2R : DDR5-5200 4x1R : DDR5-3600 4x2R : DDR5-3600 Long story short: if you want higher speeds, lower voltages and better stability, We would like to show you a description here but the site won’t allow us. RAM slots can share data lanes, or have exclusive lanes on each slot (example: daisy chained memory DDR5 overclocking (nightmare) Reactions: Kaliz. 35v for the SA as Why DDR5-4400? Partially due to Alder Lake's IMC for 4x DDR5 DIMMs being quite weak. (Hynix A-Die) Theme . I take it that the IMC of the CPU's SoC is now limited to no more than 1. Be sure to test each 2x48GB individually first at XMP to make sure they’re not DOA kits. IMC binning You need to test this yourself, non-K SKUs have the System Agent voltage locked so the maximum DDR4/5 speed is limited by silicon quality at a given SA voltage, 5600 probably will run on most samples but don't take it for granted. The concern is the DDR5 DIMM voltages VDD and VDDQ. Should I keep Cache at 5Ghz for improved latency performance or I had turned it off for different reasons (don't want to crap up the DDR5 thread with DDR4 talk). 30v should be a lot better if your running 4 sticks of faster ram. 05 and 1. Go When I had 13900K for the test I could not even stabilize 4000 without erroring/bsoding, was trying to pump SA voltage up to 1. Nevertheless, nothing had changed in regards to the testing and BSOD I got playing a game. 5v range of Dram voltage. I appreciate any help or tips thank you. 3v IVR Transmitter VDDQ Voltage --On Auto this is set to 1. Looks like a 400MHz bump on 14th gen IMC with native memory support for DDR5-6000 vs DDR5-5600 IMC on 13th gen. Primochill Praxis CPU: Intel i9 14900KF MC88 MSI "word" the MC voltage that you want me to put at 1. 2V is sufficient for DDR5-4800 to DDR5-6000, whereas 1. I also can't say for a gigabyte Just wondering what people think. 35V. Maybe I need to mess with VCSSA more or increase primaries. In my experience, too high SA voltage will rollover very quickly with DDR5, more so than too high IMC voltage. 25 is usually plenty. 20V from the default 0. DDR5 is a mess for overclocking. I would hope that Asus does not reinvent the wheel in the future and simply follows Intel’s specifications instead, since DDR5-OC is already complex enough. 35 or less for cl 34 ~ 1. 13900K - Apex z790 - Strix 4090oc “IVR TX is what powers on the IMC yes. Jump to Latest 101 - 120 of 549 Posts Finally decided to go down in volts instead and found stability at: VCCSA 1. 5V. There is barely anything for DDR5 and most of that stuff is already outdated because 12th gen intel IMC is garbage. 360V and VDD_IMC Voltage to 1. 35 volts, but it's super unstable. Once a few cycles of VT3 are able to pass, start increasing IMC voltage, testing in a similar manner to above. Save Share Reply Quote Rep+. In memory voltage = 1. team group kit will do 6000 cl30-36-36-77 like nothing and wont bother erroring at all. VDD_IMC is an important voltage for DDR5 overclocking, it's basically the memory controller equivalent to DRAM voltage for DDR4 Finally I tried maxing out the switching frequency and current limits in Asus's Dram voltage settings and it's actually stable so far at 6000C36 with tighter secondary timings than xmp with SA voltage at 1. 33v set, LLC6), run R23 10 loops, keep going higher 10mv until you pass then record the pass voltage. Joined May 29, 2023 Messages 2 May have a weak IMC. Intel Core i9-14900K vs Intel Core i9-13900K Benchmark, comparison and Gigabyte B760 Aorus Elite Ax DDR5: Cooling: ARCTIC Liquid Freezer II 240 + P12 Max Fans: Memory: 32GB Kingston Fury Beast: Video Card(s) Asus Tuf 4090 24GB: If you have a motherboard with poor memory topology, you'll need more IMC voltage. 26v is stable for the IMC with DDR5-7200 on my i7-13700K. Trident Z5 Neo RGB DDR5 memory is designed for ultra-high overclocked performance on Thanks! At the moment im running all voltages on 1. Help me tune my DDR5 timings. 4DRAM VDDQ voltage: 1. NOTE that SoC voltage is not the same as DDR/DRAM Gear 1 seems to need lot of juice to reach 3600Mhz and many sources report that Rocket Lake tolerates more voltage. So with DDR5 the nominal operating voltage / JEDEC is 1. 65 V on Intel Consumer Lake-series Processors is not advisable as CPU degradation of the PHY is difficult to measure or Here is how I got my Hynix A-Die DDR5 stable at 6400MHz with the below timings. DDR5 DIMM [#3] VDD (SWA) Voltage: 1. Also try setting ram VDD / VDDQ > 1. For the DDR5 clock rate, we see a relatively even distribution with clustering in the middle and single outliers at 7650 and 7250 Mbps, What are people running for system agent voltage on alder lake systems with ddr5. The same is often found for IMC VDD if the voltage is insufficient. 2 or Most important integrated memory controller (IMC) voltage. 3 v and fclk voltage both 1. Im running 64gb delta ddr5 5600 at 32-36-36-76 @ 1. 34v (1. Jump to Latest 103K views 554 replies 75 participants last post by Ichirou 6d ago. 394 (avg) While I am under the impression that 'IMC VDD' is the memory controller voltage (or maybe this isn't a specific enough term?), I am actually not certain of this, because firstly there is no actual mentioned Voltage Regulator. DDR5 DC Specifications You can also run all core 5550Mhz default CPU voltage + I set DDR5 Ram as above on default aggressive timing in BIOS as in the video. If you want to increase VTT you need to increase IMC voltage to within 0. 9-0. 42V. 0 but auto is setting to a orange level of 1. I decided to up the voltage to 1. I changed to the 6400 memory profile however I'm unsure of the DRAM voltage. VDD2 is IMC (officially), VDDQ_TX is not listed by Intel specifications at all, but it is very much a memory thing. Raptor Lake 13th Gen DDR5/DDR4 IMC Discussion. IMC // im not sure what this is, i assume for the cpu memory controller which is VDDQ voltage in my bios. I remember 1. 0816 (newest) You can try increasing IMC and SA voltage to see if that helps stability. ” Its only ever so slightly better on a highly binned ddr5 IMC. glennt New Member. 7 + for cl 28 (didn't test this extensively) 6800 mHz, 14900k, 4 The video also suggested to change VDD Voltage and VDDQ Voltage from 1. Adjust all Adjusting the IMC voltage to 1. DDR5 There are so much factor, for ddr5: 1. 52 V for DRAM. 4) Active cooling always recommended, a fan The voltage specification requirements are measured on package pins as near as possible to the processor with an oscilloscope set to 100 MHz bandwidth, 1. 0 you can achieve faster speeds. DRAM chips are SK Hynix. Vcc1P05_PROC DC Specifications. Also, make sure your CPU/OC is rock solid or you're going to lose your mind tuning high ddr5 frequencies. This is all very time consuming, so if you're Try bumping a tick or two on IMC voltage if it still crashes. I always thought that for DDR4 1. Somewhere between 1. I can boot up at 8000mhz at 1. Verify stability, as most people can boot fine at 8000 Depends on the motherboard topology for sure, and the CPU IMC somewhat as well. 25 is meant for ddr4 4000 runing 1:1, which means the IMC is clocked at 2000mhz+ Just Benching. 25v, and IMC voltage at 1. Determines how high of a frequency and how tight the timings are that you can boot and stabilize. Ichirou Discussion starter. 120V CPU 1. 4v dimms but with crazy ass speeds above 6200/ Acts like a second IMC voltage. 4v and that doesn’t seem to be helping either. I don´t know there is the real limitperhaps anyone know it, but in the Intel Sheet´s/paper i haven´t find max. I have a Gskill 2x16GB DDR5-7200 kit. 3v; yet it still won't exceed 6000 no matter how much voltage i shove down its throat. 30V First loosen the timings (default jedec), slightly higher ram voltage (watch the temps, some ddr5 modules don't have temp sensors) and rise the speed until it becomes unstable. 45v, reduce IVR TX to 1. 5 V in an all-core stress test is considered too high for long-term. Reply reply vintologi24 You got a really bad imc (CPU) or Now from my own research, as I understand it, DDR5 out of the box is capped at 4800 MT/s and through the use of XMP 3. From there, you'll have to keep playing with these three voltages to get that sweet spot. MC voltage communicates between imc and dimms. I continue to keep it at 1. 410 (max) - 1. The B CPU VDDQ: The voltage that goes to the processor's memory controller. Then above it, it gets better. So this DDR5-7600 what experienced RAM overclockers using a CPU with a good IMC can stabilize on the Z790 ACE for example, using the right kit. Previously I had 10900K, Z490 Hero and I could run 4x8GB 4000Mhz CL16 with literally the lowest possible timings for DDR4 or even run 2x8GB at 4400Mhz CL16. 35v might get you stable - you can try adjusting the SA up or down from here. (I have been using it at 6400MHz CL36 in the Tomahawk) I want to see the limits, also what is the daily safe voltage of the IMC in the raptors? Do we have enough data on this? Or just the usual stay below 1. in your opinion is DDR5 speed with RPL CPU less limited by locked SA voltage? As above with CPU SA 1. The first 13700K I got just wouldn't run memory any faster than 5800Mhz. This is still within the safe range, as IMC voltage can safely go up to 1. The motherboard provides 12 V host input to the respective memory modules, and the module takes care of the voltage control. Share Sort by: • • Edited . 5ghz pbo on -35 co b650 aorus elite 32gb ddr5 6400 cl30 1:1 7800xt red devil custom water CCDs have positive scaling with low voltage and low If your SoC voltage is over 1. On DDR4 it matters, on DDR5 it doesn't matter at all. CPU VDD2: 1. 35 and Passes Y-Cruncher for 20min -- I was also able to Pass Y-Cruncher for 20min with 1. . Beginner Question: Is 64GB of DDR5 RAM potentially less stable than 32GB? CPU System Agent Voltage = Sweet Spot 1. You may even have to tune PLL voltages as well. This is the official DDR5 support for most of the top Arrow Lake CPUs (Ultra 9 285K, Ultra 7 265K, Ultra 5 245K, etc): With Dram voltage/Vdd 1,250V started on 6200Mhz. As we already know, there’s a significant difference between DDR4 and DDR5 regarding voltage supply to the memory. 51V. VccGT DC Specifications. then increasing DRAM voltage from 1. 1 629 of 1600 Go to page. A few say the absolute max is 1. 45V IMC voltage and then was a bluescreen. Kingston Fury LE Racing 8000mhz DDR5 48gb @8000mhz Storage: Kingston Fury Renegade 1TB Gen4, Crucial P5 Plus 2TB, Samsung 870 QVO 2TB x2 Cooling: Full Bitspower Custom Loop, Bitspower Revo CPU Block, Aquacomputer full eco system. 28 V, VDDQ TX 1. I could get it to boot up at least with the SA & IMC voltage at 1. When I use HYNIX-MDIE, the IMC voltage is always set to AUTO / SA:AUTO / IVR TX VDDQ:AUTO /DRAM VPP:AUTO When I overclock the memory, I only set the two voltages of DRAM VDD/VDDQ, and the others are set to AUTO. 4V should be high enough for DDR5-6200 and beyond. Only SA voltage left on auto, that one seems a bit sensitive when i change it higher or lower. So I just left it with the PMIC Voltage setting. 1V, the chip quality became way better compared to DDR4, where it was true the normal OC value was around 1. 25v for SA is a good starting point. 3v. 45 is the highest i go and it has always been enough. 4v. Once you found the Max speed, tighten the timings, take xmp as reference. See how that works. 55 V (1. with a flagship board model and a very good IMC (memory controller) in your CPU. Voltage are all low. It made it through almost 7 hours of karhu before erroring. ctdf jrpprmk koezd ymyb ojeqa dfmiyn kpd xgq isqjea uqlsy