depends on the mobo, mine reports it with HWinfo: done12many2 Jul 28, 2020 · Make sure your VCCSA and VCCIO voltages are under 1. g. 24 for VCCSA. go check reviews of some ram kit rated ~5000mhz, and you will see the auto voltages of vccio and vccsa for enabling that xmp profile are near 1. R Sep 9, 2017 · Dear Intel,can you say safe voltage range fot VCCSA and VCCIO voltages?In Intel® Core™ i7 Processor Family for LGA2011-v3 Socket datasheet documented for Haswell-E this values undocumented . GamersNexus claims that AMD boards are safe up to 1. The following steps are in numerical order for overclocking gain. 05V Voltage' setting at -0. 8Ghz all cores, one Cala for 1. I can change VCCSA to 0. In an example, the forum user dissected the ASRock Z590 Pro4 motherboard to find a Reneas RAA229001 controller that We would like to show you a description here but the site won’t allow us. 35V) ram sticks OC'd to 4000Mhz with XMP timings and voltage. ROG Strix 1070 OC Guide - ROG Spatha X Rapid Fire - ROG Falchion Touch Panel - z270 BCLK Overclocking - Xsplit Gamecaster Guide - ROG RX 460 OC Guide Dec 26, 2021 · How does the CPU VCCSA, VCCIO voltage being identified? Is it from BIOS or third party software like HWiNFO? Could you post screenshot showing the voltage value? WIth default BIOS settings, the CPU VCCSA, VCCIO voltage should work around 0. but it seems there're different answers to this same old question. Regarding the VCCIO and VCCSA voltages, 0. I also know when these voltages are too low but also too high it causes instability. 05V can run RAM up to 3733mhz (I read it somewhere). 990V VCCPRIM 1. 312 volts. System Agent is like a master voltage, powering everything that is not technically part of the cores, including the memory controller, thunderbolt controller, L3 cache, and memory coherency pipeline. 35v is in the safe zone for the CPU! No need to worry. 000V PLL OC 0. 35V is the maximum safe voltage. 3 and vccsa is 1. Jul 5, 2020 · 1. Temps are well in check at 22C-28C at idle and around 80C under load. 35v May 26, 2018 · Hello Leonardo, thanks for answer. Sep 20, 2021 · VCCIO and VCCSA anywhere between 1. 98V. Increased VCCSA can allow stability for higher-clocked memory. May 14, 2020 · Post Sandybridge the VCCIO is now IO A and IO D. 35v max is not recommended I think May 17, 2022 · Hey I just want to know if 1. 1V VCCIO. 25v, shoots up to 1. My mesh is already running at 3. I need 1. 5 V. So I wondered if the same happens to me or not. It is the voltage for certain non-core parts of the CPU. 45V When I run xmp2, 3600MHz 14-16-16, they run at 1. 36V). Another way to stabilize your system performance is to tweak CPU voltages related to the memory controller. 34sa in the bios. I can't push the timings any lower or the frequency higher without memtest errors at these voltages. There is a dedicated voltage controller for the ram. 1. 264. Or if it’s working fine can I just keep it that way. Anyway, the big problem on my board is that VCCSA and VCCIO seems to be in a sort of read-only state. 18. 15V for 2400. 5+ VCCIO 2 11th gen is different than 10th gen and earlier, and for sure tolerates and needs more vcore. Jan 31, 2018 · Adaptive voltage may not work properly on a Z490 motherboard. 3v on both is a bit high. In the section with the voltages you’ll find CPU VCCIO Voltage and VCCIO Mem OC Voltage. VCCIO was at 1. There has been a fair bit of talk about the auto voltages being applied on the z490 platform, most notably auto vcores and crazy high VCCSA/VCCIO voltages when applying XMP. 00/0. 33v. Other sources claim that as long as you keep memory voltage within +0,5V of VCCIO you should be fine. The System Agent voltage has been locked to 0. 05/1. Once it is stable try to walk down VCCIO and VCCSA voltages as much as you can. 2Ghz with 1. 35v vccsa/vccio/vdimm and now even with 4 very warm (45c) dimms it can pass several back to back linpack extreme 14GB stress tests with bad airflow, whereas 1. Running 15-15-36 on the ram at 1. But to answer your question, you can run low voltage to these chips. These two voltages are sensitive to changes because they are related to signaling. 3v mesh voltage. 3V, but that's just for AMD. 35V, and SA voltage=1. ” – I have read lot of posts on forums talking about 1. By integrating these, Intel can apply even more fine control to the power states, as on-die reactive latency is reduced. 300 VCCSA. I lowered my VCCIO and VCCSA as the XMP was excessive. 4V-1. As a result of overclocking my RAM I am now required to set a voltage of 1. 080V PLL 1. 900V and VCCIO to 1. 34V and VCCSA was 1. Max safe vccsa is 1. 65 voltage on the dimms just to post. 2v on both VCCIO and VCCSA can both go to 1. 25v for the VCCSA and 1. These voltages help to stabilize the uncore domain of the CPU that ties into RAM as well as the RAM itself. In documentacion for Broadwell-E documented only CPU_VCCIO/ Best regards. 47V respectively. 5V, manually inputting voltage it sat stable at 1. I believe max safety for memory overclocking is around 1. 1 is fine. VCCSA (System Agent Voltage) has usually very little impact on stabilizing any OC. 25v manually in BIOS) and 1. 35v) VCCSA: 1. 25 VCCIO/VCCSA max voltage for DDR4 so i am a bit worried. DRAM is at 1. Those are the lowest voltages I can get and still be stable. VCCIO manually set to 1. 200 VCCIO and 1. Apr 10, 2013 · The VCCIO and VCCSA voltages are set to auto ( and in the bios I showed a normal voltage recommended by Intel ) Now I have a TritendX at 2600 MHz (10-12-12-31-2t, 1. 45v IO 2, IO 1. They just love high voltage. 072 after running the xmp profile : VCCIO: 1. 45v for Samsung B-die and 1. 25v and vccio is 1. Formally known as Processor Power for I/O it is the voltage for the integrated memory controller as well as the PCI-E controller. Everywhere I’ve read has said these numbers are too high. 328 and VCCSA is showing 1. I didn’t think VCCSA or IO effect frame rates just stability. 25V for both, fully tighten your timings, and then see if you can drop the voltages further. 47v，VCCIO Using the XMP profile. I have two 11900K’s, (With auto voltage) and 4. too much VCCSA can also introduce instability as does too little of it, learned this after months of running 1. 5V 19-26-26-46 and system is prime95 stable. For every 100mv I slice from this voltage, I tend to lose 2-3 degrees from my max load temps. 000v-0. Aside from the CPU core voltage the VCCSA and VCCIO voltage will also need an increase to accommodate the faster RAM – these two voltages help stabilize the IMC (internal memory controller) and input/output of the CPU, respectively. 31 - 1. 4v, which is safe. 12. HWInfo64 read that they were running at ~1. 26-1. 35V but you shouldn't need more than 1. 128 (min 1. 35V or so). 0 profiles and max suggested voltage “1. After running some benchmark and games, everything seems stable but my temps are exactly the same. 270 VCCSA 1. I did not touch VCCSA and VCCIO and notice that both were on auto. Nov 24, 2015 · Those are terms used with Intel mobos. 95V and stock VCCSA 1. 1v. Auto voltages typically sets VCCSA to a value that's 0. Jun 22, 2022 · So I'll have to turn off the OC, that just complicates things. VCCSA: Starting with the second-generation Core i processors (“Sandy Bridge”), the VTT voltage was renamed to VCCSA, and is called “system agent. Im overclocking my system to ge My main question concerns voltages of VCCIO, VCCSA that won’t degrade my CPU - what should VCCIO/VCCSA values be given the CPU/RAM speed/voltage? Current VCCIO/VCCSA voltages are auto set and are at 1. 色々と負荷のかかる環境で使用しているが、この状態で不安定になることはない。 Aug 7, 2020 · 이글에 의하면 vccsa vccio는. The difference between Intel VCCIO and VCCSA and AMD SoC is that VCCIO requires an increase in voltage when increasing memory frequency in Mhz. 35v, but I would start with around 1. These are on auto. Intel max voltage on VCCIO is 1. 5v SA , 1. 2 VCCIO 2 for 4266 DR at 1. HWiNFO says my SA voltage is at 1. My CPU VCCIO is set to Auto and stays @ 1. 325v. May 29, 2018 · Hello Leonardo, thanks for answer. E. 12 votes, 17 comments. Apr 22, 2011 · VCCIO is the memory controller voltage. 55 on the dimms. 관리자 권한으로 실행해서 CPU 코어 쓰레드 숫자 맞게 들어가신거 Feb 15, 2021 · Stock is 0. 3V is the maximum safe IMC voltage, but I'm not sure if that's BIOS or actual measured voltage. 92V on non K 12th gen SKUs thanks to the reintroduction of IVR (Integrated Voltage Regulator). 05v, regardless of what the memory speeds are set to or XMP in the BIOS. We will lower this to 1. Skill RipJaws CL16 19 19 39 F4-3600C16D-32GVKC zum laufen gebracht, hatte VCCSA und VCCIO zu hoch. 49 VCCIO 1. 05) and still no issues in RAM tests. It's quite visible when the gpu is also being used at the same time as the cpu/ram, which is not the case during a standard hci memtest or prime 95 We would like to show you a description here but the site won’t allow us. 2 (if I remember correctly). Apr 6, 2021 · 作者在测试中发现，即使RAM频率超过了5GHz，VCCSA也只需设置在1. CPU VRM can be @ 1,800V or should i leave it @ 1,888V ? Oct 30, 2015 · You will have to increase voltage or slack out the primary timings, no way around that. 120 max 1. Or you can disable XMP overclocking and go for manual oc, go to RAM speed ans set it manually to 3600 or 3800, set the voltage first and try if it boots, same as above. 25V/1. 35v or lower is best. The memory controller and the memory itself are completely seperate units with completely seperate voltages that cause different changes. 25 safe for 3733 Mhz DDR4 and I5 11400. No issues like yours, and voltage of 1. The games are running stable for a while when the manual voltage 2. In some rare cases you may need 1. 65v (OC'd DDR3). Lower it to 1. Increase DRAM voltage. Jun 12, 2021 · •VCCIO: Available starting with the second-generation Core i CPUs ("Sandy Bridge"), this voltage is used for feeding all input/output (I/O) pins of the CPU, except memory-related pins. These two voltages can be set up to 1. 25-1. RAM voltage: 1. 5v is the absolute max we allow for XMP certifications. 150 respectively for 1. Auto voltage for VCCIO is showing 1. 5~ years without issue. 1-1. Mobo on auto values gives me 1. Max daily for both is 1. VCCSA controls voltage for the control unit which includes: memory, arithmetic and logic unit and input and output devices The gist is that VCCIO/VCCSA wasn't what I was told/read at the time and I was lowering voltage for it needlessly. 32v in both vccio and vccsa, stress testing it goes to almost 1. If you have instability, try to increase RAM timing. Oct 14, 2016 · And the supplied voltage (from AIDA64) is at 1. 2v on both Oct 19, 2017 · If you're running an 8700k - BEWARE of VCCIO & VCCSA Voltages. Im unsure of the cache speed. Auto voltage for current DDR4 RAM (2 x 8GB 3200 MHz C16) defaults to 1. ” VCCIO: Available starting with the Jun 13, 2020 · I've got an Asus board now and haven't messed with CPU PLL OC Voltage, but on an Asrock Z270 board, changing PLL Voltage to say 1. 02V VCCSA 1V. 15 and above, and only goes up to 1. 38v at load, while the IO voltage is at 1. 5~1. 312V And CPU VCCSA is also set to Auto and stays @ 1. 25V VCCIO. Could you load BIOS default with F6 key and save settings to check the CPU VCCSA, VCCIO value? Mar 19, 2014 · [硬件求助] VCCSA和VCCIO的稳定上限现在有说法了么？ RT，还是那两条复仇者LPX CMK16GX4M2D3600C18 之前内存可以稳定在4000 CL17-21-21-42了，这两天想试一下4400，于是进bios设置memory try it，保存重启，立扑[s:dt:无语] 再进bios，只把频率设到4400其他全部切回自动，直接重启以后一进Bios发现VCCSA赫然一个1. I could run my RAM at 3600Mhz CL16 but that requires voltage tuning. Dec 22, 2015 · VCCIO, VCCSA, and DRAM Voltage: As I stated earlier, most motherboards have strong "auto rules" pertaining to these voltages. 17/1. 2v და in game ცოტა desync არის, და როგორ ვიპოვო სწორი ვოლტაჟი, თქვენ როგორ პოულობთ რომ გამიზიაროთ მიდგომა. I can read from ASUS' guide, that they recommend setting the 'VCCIO CPU 1. So I decided to stop at 3400 and just lower VCCIO and VCCSA from the crazy high XMP auto values (like 1. Increase VCCIO & VCCSA voltages. 424 and 1. It is set to a 1. 28v under load. VCCIO 1. 9-0. 15-1. 15 now with my new kit vccio is 1. 95 and VCCSA = 1. 24 VCCIO and 1. Mar 3, 2022 · Yeah, even on my Z490 when tuning ram, if I left the VCCSA and VCCIO on auto the board would thrown in some high volts, not as high as yours seems to be showing but when trying for 4133mhz @ CL16 my VCCSA went to 1. 34V respectively (DRAM peaked at 1. Mar 30, 2021 · A voltage between 1. However, if I manually set VCCSA and VCCIO to these same values, my PC doesn't boot and says "memory overclocking failed". 5V =absolute max voltage allowed for Intel XMP 2. 2v on a 7700K. I’m inclined to believe that the people who set these auto values kind of know what they’re doing, so I don’t believe the people who say these values will “kill” anything whatsoever. 008V VCC suistain 1. My own experience with auto settings on a M12 Apex and a 4800c18 g. 950V VCCSA Voltage 1. Oct 17, 2021 · Those voltages are a bit high, would set VCCIO and System Agent voltage manually to 1. May 3, 2018 · I have the cpu core voltage set to 1. 05v for VCCSA, for JEDEC, but in most cases, this works for 3200 mhz XMP as long as you aren't trying to tighten any subs. 971 I'd stick with 1. I’ve read a few OC guides and they usually don’t mention having to change the VCCIO or system agent voltages. 25 according to:. VCCSA and VCCIO are both memory controller voltages. You're much better off lowering your CPU PLL voltage, if you can. Start at something like 4. 25 Reply reply Garlic_6969 Nov 29, 2018 · Ok so I know it’s been some time since I’ve been back to this thread but I have an update on a scary experience (for me anyway) that happened when trying to lower my vccio and vccsa voltages. The VCCIO rarely needs touched, it is voltages for other parts of the CPU. 4 Volts (auto) on Asus Strix z370 motherboard. 29 for VCCIO and 1. Interestingly, the VCCIO voltage in my BIOS turns red at 1. Don't go straight to 5. The main side effects of high dram voltage, vccio and vccsa is the increase of temperature of the memory itself, because samsung bdie often starts producing errors above 50°C when overclocked. Jul 1, 2020 · The problem is, the reported VCCIO and VCCSA are absurd at 1. 24v VCCIO (1. The fact uncore voltage and mesh voltage were different was news to me, but testing that I've done (as well as the above two posters) definitely reinforces it. If you ever go gear 2, VCCSA and VCCIO 2 can go much lower than the mobo gives, 1. Motherboard is a MSI MPG Z390 Gaming Pro Carbon AC, and i am cooling the i5 with a Corsair h115i pro (280mm watercooling). In the ASUS ROG BIOS you can access the VCCIO voltages in the Extreme Tweaker menu. different generation of cpu may differ. 3v, preferably under 1. Bumping your RAM voltage to 1. But an article from hardwaresecrets has exactly the opposite opinion, it says. Sep 4, 2023 · If you've overclocked, using VCCSA for stability's sake on any of Intel's 2nd through 11th gen chips, what were the circumstances that required the increase, and what voltage did you end up settling on? 1. 4v VCCSA offset to get the memory that high and a 1. Jan 5, 2019 · After that it takes way more volts and CAS bumps so probably not worth it. 30v/1. But how about Rocket Lake? Gear 1 seems to need lot of juice to reach 3600Mhz and many sources report that Rocket Lake tolerates more voltage. May 25, 2018 · The "SVID VCCSA Voltage (mv)" and "SVID VCCIO Voltage (mv)" are set a bit high when you set XMP, 1. 0GHz. We didn't mess much with the mesh, but you might be able to get to 3. 20v. Are these voltages normal? Noticed during the time that for the Asus boards these voltages on XMP were pretty much high, but for this generation seem to be already over 1. I just recently went to Z370 as well. 4v, i reduced it to 1. 195-1. 95v for VCCIO and 1. 40v for other dies like CJR, Intel VCCIO and VCCSA voltages to 1. (oh and loosen the timings a bit) i would reboot and lower the dimm voltage a notch at a time in between posts until i got to 1. 3-1. 20v manually in BIOS) with those settings. 245 vcore in vios and reads a 1. Thank you Hey there, I recently bought an ASRock B550M Pro4 with 2x8 GB 3200MHz RAM and a Ryzen 5 5600x. 3866 mhz requires work and silicon lottery and sometimes a large increase in IO/SA. Meaning in this case, 1. 90V max. 35V (VCCSA) may be required. 275V and the other uses around 1. 056v VCCIO: 0. I lowered VCCIO to 1. SA is the System Agent. Jul 31, 2012 · – DRAM Voltage – depends on IC , in this case I set 1. 05-1. 312 and VCCSA was at 1. 5v DRAM voltage. Yes automatic sets VCCIO on 0,95V and VCCSA on 1,05V when RAMs runs on default DRR4 speed = 2133MHz but if I set it faster than what is default for this CPU (= 2666MHz) these voltages already needs to be increased to keep stablity. 45V (AIO) as long as temperatures are in a comfortable range for you/ DRAM: Primarily memory dependant but you can go up to 2. 072V IMC 1. Mar 19, 2014 · 关于高频内存vccio和vccsa电压的设定？ 双十一入了金士顿 掠食者 4000频率的套条，bios里开启xmp后，发现vccio主板默认给了1. Nov 22, 2011 · Voltage Range of VCCSA on ASUS X79 Mobo Jump to Latest 10K views 7 replies 5 participants last post by foxrena Mar 26, 2012 Jan 17, 2020 · My G-skill 4600 runs well with default VCCIO and VCCSA with default xmp2 profile, no extra voltage needed except 1. Mine were around 1. 25v and see how it goes. skill kit: VCCSA around 1. 9GHz it shouldn't be that high. true. 25 volts for both values or will it give me a reboot loop? Thanks in advance! AUTO voltages were crazy like yours, so I set VCCIO to 1. 232 and VCCSA: 1. 25 – 1. Dec 27, 2017 · VCCIO: 1,048V VCCSA (CPU System Agent Voltage Offset Mode Sign): 1,160V CPU VRM: 1,888V I know from my past system and my x299 system system voltage was default @0,900V but it runs with 0,880V stable to. A lot of information but I'm getting to the point. Jan 10, 2011 · If I set those two voltage settings to Normal, then the VCCIO stays at about . The actual values in HWinfo are VCCSA 1. 200 and VCCIO set to 1. Intel states that the maximum safe memory voltage for IB is 1,65V or otherwise you risk damage to the integrated memory controller inside the CPU. 4, this kinda sc Feb 10, 2021 · The VCCSA and VCCIO voltages, however, has reportedly undergone a shift. 35V = okay voltage for overclocking kits; 1. 65V” Feb 27, 2018 · We used a +0. 1V for tests. Oct 18, 2019 · Some motherboards also have auto-rules for two other voltages, System Agent (VCCSA) and System IO (VCCIO). The two voltages are VCCIO (Input/Output) and VCCSA (System Agent). Try to stay under 1. The wording of these voltages may differ depending on your motherboard. The most important thing handled by the System Agent on modern Intel chips is the memory controller. 2v, that said you can run them higher like anything, but that’s recommended. On memory I have it set to manual , running @ 4600MHz 1. 100 in the bios manually. 95V up to 1. You have to be patient to find the right values. On CPUs that have this voltage, it is also used to feed the thermal control bus (PECI, Platform Environmental Control Interface). Oct 28, 2018 · I’ve read that others with the same or similar z390 motherboard also have high vccio. 25v and the BIOS runs them at 1. 935v Default settings when I enable XMP to get 3200MHz: RAM voltage: 1. 25 is the maximum for daly usage Apr 25, 2012 · The voltages you should change for high memory overclocking on Z77 on air is the DDR Voltage, and if you like you can try increasing the VCCIO(VTT) and VCCSA(IMC) the VCCIO (VTT) can help with memory OC, however you will also need to increase VCCSA along with it on these GIGABYTE Z77 boards (except on the Sniper M3). 296v VCCIO: 1. But the performance is very poor. Aug 10, 2019 · 2666MHzのメモリでは高い気がするので、VCCIOとVCCSAはデフォルト設定と同じ電圧の値を入力した。 デフォルトの値 VCCIO Voltage 0. 25v VCCIO and 1. CPU VCCIO voltage at default of 1. DDR4 can safely go up to 1. 2 GHz. If i lower it, prime 95 starts to give me errors (memory controler and ram test). MY dram 1. Maybe your fps change is xmp on vs off? Voltage on dram is different from vccsa and vccio. Intel max spec is 1. 60V IO/SA voltages though. Intel. 40V and 1. 2v，并与vccio一起使用，来测试内存超频后的稳定性。在一般正常使用时，建议二者均保持 VCCIO 1. 35, but at 4000MHz you probably don't need more than 1. It's more of a bandwidth problem, cpu has trouble keeping up when you trim prime / sec / tert timings. I did have a 10900K randomly die on me playing around with memory overclocking at 5000MHz+ with heavy 1. 10v VCCIO and 1. VCCIO default voltage is 1,05V ? in UEFI its named: VCCIO CPU 1,05V Voltage. 050V. 356v (which I find a bit odd since the profile says the voltage should be 1. 25 and VCCSA to 1. I have searched the internet for months for stuttering fixes on my RED DEVIL 5700XT and the only thing that made a difference was changing the VCCIO and VCCSA values on my bios. Would you know or have a suggestion for 24/7 max VDDQ & VCCSA settings for Alder Lake running on DDR4? My memory is GSKILL TRIDENT Z RGB F4-4000C18D-16GTZRB 16GB (2x) and I was looking at moving this from my current system to an MSI Z690 Edge WIFI DDR4 and I must have remembered this incorrectly but a G. 376V but ran pretty much at 1. Is it dangerous that my voltage is that high automatically. 25v and 1. 3V VCCSA and 1. 275, not sure about Z590 but anything above 1. 287v. 25V is the safe value for VCCIO for 24/7 usage. I got all the way down to stock voltages (VCCIO = 0. 5Ghz for about 3 years in my X99 Deluxe board from ASUS using 1. 2 fails in the same situation. If you want to overclock your memory over 3GHz, you will probably have Oct 17, 2014 · popular opinion is that VCCSA is System Agent Voltage, and it stabilizes or helps overclock BLCK, while VCCIO (commomly known as VTT/QpI) is IMC Voltage and helps stabilize when overclocking RAM . 45v Apr 5, 2013 · VCCSA is System Agent Voltage, and stabilizes or helps overclock BLCK. I've been running it with manual voltages at 1. VCCIO and VCCSA share some paths in the CPU and need to be raised in tandem and shouldn't be more than a few notches apart for best stability. 2 vccsa and 1. 32 v. I believe that stock VCCIO 0. 10v with little to no impact on stability while VCCIO causes cache errors when it is lower than 1. BIOS readings show 1. 45v should be sufficient for memory speeds up to DDR4-6000 and higher. 592V VCCMP 0. My question is, why are the voltages so high at the VID readout? I think I have an understanding of what the VID is but maybe I'm wrong. Jan 27, 2023 · Should be set to +0. The best configuration with speed of RAMs Im currently using seems to be 1,29V VCCIO and 1,32V VCCSA. Sep 14, 2016 · VCCSA 1. 05V lower than the System Agent. Surprised by X99 story, I ran my 5820k at 4. 3V is fine for VCCIO and VCCSA but quite unnecessary for 3466MHz. 30v IO/SA. That and the range between different core temperatures was greater. 0V up to 2400, I set safe 1. 0V on the VCCSA and VCCIO, or even less. 4v is just a start to ram oc. 15 Nov 22, 2019 · The i9-9900k processor gives very high VCCIO & VCCSA voltage at 4000mhz (CL 17-17-17-37) ram auto tuning. 35v (DDR3L), 1. 38V and ~1. 15v for the VCCIO. 278 V for VCCIO is enough to handle an overclocked i9-10850K to 5. Make sure to check your die type with Thaiphoon Burner and increase the voltage appropriately to get the best scaling from your memory first. Mar 26, 2013 · DDR4 can safely go to high voltages, mine is at 1. 100. My issue is with my old kit 2x16, 16-18-18-36 at 3200mhz my vccio and vccsa would both be 1. Skill 4000Mhz CL15 Samsung module was previously listed but its now gone on MSI's Oct 17, 2017 · VCCSA manually set to 1. VCCIO was 1. 65V/ VCCIO_Memory: 1. i jacked up to 1. 25v VCCSA at most, then play with timings and/or DRAM voltage if the sticks are still not stable at 4000mhz. Primary RAM timings are 17-18-18-36. 28v VCCSA (1. I checked motherboards BIOS to see what VCCIO and VCCSA voltages are being set to. it is hard to think that you need more than 1. for comet lake, for vccio and vccsa 1. 300 and the VCCSA & VCCIO set to 1. 199V underload through R15/R23 type testing. I increased my tRFC from 417 to 427 on my 3200Mhz DDR4 and everything is stable. There is also a VCCIO2-value and adjusting it also triggers this issue. – VCCIO – 1. 05v powers everything else. 000V RAM 1. Too low VCCIO/SA voltages result in higher core temps 2-4ºC, memtest initializing slower and not testing all available RAM. 7GHz all-core, then move your way up slowly. The VCCSA voltage I've set to 1 May 26, 2018 · Hello Leonardo, thanks for answer. Apr 26, 2012 · VCCIO: more commonly known at QPI/VTT voltage, this is the VTT voltage. 220 with the LLC at High. We would like to show you a description here but the site won’t allow us. Some sites tell that 1. 950 and 1. 40v IO/SA or 1. Sep 17, 2018 · Thanks I will give that a try and let you know the result! On a related note, what is your opinion on the max VCCIO and VCCSA voltage for good longevity of the system? I saw someone comment 1. 5v (JEDEC DDR3), and 1. May 17, 2021 · In terms of acceptable voltage levels for daily use, you can reference Core Voltage: 1. I did do about 1hr 10 minutes of testing with Memtest86 and no errors with VCCIO and VCCSA at the Normal settings. Aug 7, 2023 · You might know about the 7800x3d explosions, but Asus love for extreme voltages has been going on forever - at least since z170 in my personal experience, an Jan 17, 2020 · Hello, all my temps are fine, and I'm running CPU in default settings except for my memory. 1v would mess with the DTS sensor that report core temperature and the values would be a good 20C under the spec voltage of PLL =1. Dec 4, 2020 · Someone else say that VCCSA and VCCIO do nothing for memory on X299, so the voltage that has to be changed is only the Uncore voltage (i thought that one was for the Mesh). 25v MAX - this isn't an unusual thing, you should basically NEVER leave your SA/IO voltages on auto. 4v Sep 14, 2016 · HWMonitor and most others will report the offset value, but AIDA64 will report the actual VCCSA voltage even when you use an offset. 3io and 1. 25V. 35v for 5ghz and I do get WHEA errors, so I just set it to 49 and using it with no issues. Feb 3, 2017 · 6) If enabling XMP causes instability, then tuning of System Agent and CPU VCCIO voltage may be necessary. 232 This seems like a really big jump and i have read in forums that high vccio/sa can lead to the processors integrated memory controller to faster degradation. 2v VCCSA: 1. Mar 31, 2021 · VCCIO Memory Voltage: die Infos habe ich nun auch meine 2x 16GB G. 25V failed to make memory stability improve even slightly. 4000 1:1 is possible on SOME chips with maybe 1. 3/1. 3v，但高于1. 1 SA and 1. CPU-Z reads the core voltage at 1. Feb 18, 2023 · 爱来自饼干:#CPU_VCORE(P core, E core and Ring(CCF)的主电压)#CPU_AUXIN(CPU封装的主电源电压，这个电压提供所有CPU的FIVR源，比如: VCCSA、E 核心 L2、VDDQ_Tx、PCIe 和 DMI contorllers等，确保您不会将这些电压过载 CPU_AUXIN(VCCIN_AUX)，为 VCCSA 和 VDDQ_Tx 保持距离很重要。 I head that XMP sometimes can overset the voltages called VCCIO and VCCSA to the dangerous levels, so much so that it can fry the CPU and Intel wouldn't honour the warranty in such cases. 28v, which appear to be too high imo. I have VCCSA 1. 3v isn"t high. With the default XMP profile VCCSA is 1. * * Someone replied to my reddit post about the same topic and said my vccio and vccsa were borderline dangerous and to lower them to 1. Then, if it doesn't boot we'll talk about more voltage, about VCCIO and VCCSA. 4V to 1. 07-19 아생각해보니저는 32*2 에 TM5 ADV3군요근데 풀뱅이 듀얼보다 더걸리나봐요?라이젠 인텔 차인가; 07-26 64GB 도 1회 10분좀 안걸리는데 , 32GB가 무슨 2시간 걸려요. 24v under load. then i lowered the vccsa a notch at a time until i got back down to 0. 128) Are these safe values? Do I need to raise any or lower any? Jan 18, 2018 · Some motherboards also have auto-rules for two other voltages, System Agent (VCCSA) and System IO (VCCIO). 35v after vdroop is perfectly safe under 90c, dram depends on the IC, for vccio/vccsa under 1. Jan 2, 2021 · I've been playing around with voltages and discovered some weird things happen when they are too low or high. And AMD SoC and DRAM voltages. 2, and I am stable with 4x16GB(3600CL16-1. 45v for DRAM. 45V for 4000MHz ram, and SA voltage=1. 504 V. 15v VCCSA to prevent Prime 95 (version 30 or newerE) 112k-112k fixed FFT, AVX disabled errors and "CPU Cache L0 errors", when overclocking Jun 8, 2021 · When activating XMP, even for 3200MHz, the VCCIO and SA voltages if left on auto look a bit high - 1. May 26, 2018 · Hello Leonardo, thanks for answer. VCCSA helps with frequency, VCCIO can help with timings and/or high capacity but you generally need 50-100mV less of it. Note that VCCSA voltage and stability is not linear, increase it does not means increase stability, there are certain voltage range where VCCSA will cause instability. 360V Do Sep 29, 2021 · VCCSA is the imc voltage and this is responsible for mem freq, same goes with VCCIO 2. 32V (I forget exactly where my BIOS rounded to but those were around the values I put in BIOS). 3, probably even a touch less. 00v. But I would like to know if these voltages aren´t already too high (especially about the VCCIO) for standard usage. Dec 30, 2017 · You could probably dial down some voltages relating to memory. Sep 24, 2014 · I know this question has been ask many time before. But there are 2 VCCIO on my mainboard, so which one I should increase to OC RAM. For Intel System Agent, VCCIO and, DRAM voltages. popular opinion is that VCCSA is System Agent Voltage, and it stabilizes or helps overclock BLCK, while VCCIO (commomly known as VTT/QpI) is IMC Voltage and helps stabilize when ove I run VCCSA and IO at 1. 971v. 95v and 1v are Intel spec voltages respectively (IIRC) and the other two are the current consensus figures for the highest safe voltages for 24/7 use. Feb 20, 2024 · ვცადე VCCIO & VCCSA(System Agent Voltage) 1. 125v. 0 GHz all core / 1. 5ns is AIDA. 25V should be enough for anything up to 2500, I’m using 1. 200V Manual voltage. I would drop down to 1. 2V is red value. Having problems with the GPU OC should really have anything to do with those settings, the GPU is rather independent VCCSA and System Agent Voltage are the same thing and the VCCIO is an older reference to the MC (memory controller) voltage which equates most commonly to the CPU/NB voltage on AMD mobos --- This will usually require a hefty increase in VCCIO and VCCSA. 3, in order to support my 3000MHz memory. Setting voltages to to 1. 40V over your highest FIVR voltage (which is VCCSA, VDDQ, or E-Core L2) for improved stability. 2/1. 1V (Please note: This is scalable by kit and may change depending on frequency)/ VCCSA: 1. Either way I havent modified it in the bios. 050 and 1. In my Case: I kept having memory instability and the cause was tRFC timing on my RAM OC and not VCCIO VCCSA. The memory controller is part of the CPU, and just like different examples of the same CPU model can over clock better or worse, the memory controller can be different. 24V and VCCIO is 1. Didn't test lower than +100mV above stock / Intel spec of 0. 3V之间。 VCCIO Memory Voltage（IO总线内存电压）：此电压是rocket Lake的新电压，已与前几代的SA电压分开。根据作者建议，提升该电压可以增加内存超频的稳定性以进行压力测试和日常使用。 Aug 27, 2020 · Rig: i7 13700k - - Asus Z790-P Wifi - - RTX 4080 - - 4x16GB 6000MHz - - Samsung 990 Pro 2TB NVMe Boot + Main Programs - - Assorted SATA SSD's for Photo Work - - Corsair RM850x - - Sound BlasterX EA-5 - - Corsair XC8 JTC Edition - - Corsair GPU Full Cover GPU Block - - XT45 X-Flow 420 + UT60 280 rads - - EK XRES RGB PWM - - Fractal Define S2 - - Acer Predator X34 -- Logitech G502 - - Logitech My friend just gave me a new 3600 mhz RAM kit , before (i was using 3200mhz) and my voltages now are up to 1. However, when I set that value inside the BIOS Feb 19, 2022 · I've read that 1. 100v higher than VCCIO, but VCCSA will never be lower than VCCIO. Sep 29, 2016 · Usually high VCCSA and VCCIO voltage is fine for most DDR4 memory, but that seems to be changing now. Also the VCCIO and VCCSA , you can manually tune it as auto tends to push voltage too high, BUT, that voltage is NOT ON - CPU - Vcore voltage is the only one who is directed to the CPU! Voltage till 1. Anyone know which voltage will help with primary timings on Z690 Asus specifically I've got a dual channel pair of Crucial Ballisitix DDR 4 3600 CL16 2x 16gb I've managed to get down to CL14 17 17 36 however I have also tried CL 14 15 15 35 and sometimes it boots to Windows and stress passes but most times it bsods just as I log in weird sometimes it works and VCCIO and vccsa are voltages that affect the CPU and memory controller NOT the ram sticks. 320. 94~1V. I would try dropping VCCIO to 1. I was under the impression that it was tied to the regular cpu voltage in some way but I definitely could be wrong. . Questions: do you agree that those values are super high and need to be lowered ASAP? Should I return this ram? Apr 22, 2013 · 1. For reference, the SA and IO voltages your motherboard sets with XMP enabled are WAY too high, they should be 1. 35v up to 3200. 224 and VCCIO 1. 15 and left VCCSA on auto since it was already at 1. VCCSA was an afterthought from Sandy on because dual channel and speeds hovering around 2400MHz max didn't require any additional VCCSA voltage, same was true for Haswell Z97(the exceptions would be the people chasing world records for RAM speed). However, my system completes memtests with VCCSA at only 1. 280 3733 15-15-15-34 is stable but i dont sure about the voltage for vccio/sa Any tips appreciated! thank! Dec 29, 2016 · Hi, I'm running with a System Agent voltage of 1. 188v How does the BIOS determine these values? Jul 3, 2013 · Previously this meant there were five separate input voltages the motherboard handled: Vcore, Vgpu, VCCSA, VCCIO, and the PLL; but now these are part of the CPU package itself. – VCCSA – your probably won’t need more than 1. Second question relates to safe VCCIO and VCCSA voltages. safe limits for rkl will be below 1. 25 and see if it makes a difference. Only things I really have set are: XMP at 3200mhz CPU SVID: Best case scenario MCE: Off CPU Voltage: Negative offset -0. 56v. 968 and VCCSA: 1. 65V and VCCIO over 1. Oct 7, 2020 · Unofficial sources on the Internet claim that 1. 95v and and the VCCSA stays at about 1. CPU VCCIO and CPU System Agent voltages are found in the Extreme Tweaker page (scroll down to the bottom of the page to find them). 500V IO/SA is totally safe daily 24/7. Thanks in advance for any input and helpful replies! May 1, 2017 · These voltages are: vDIMM (Sometimes called VDDQ or DRAM Voltage, supplied from the board to the memory itself) VCCIO (Voltage for the path going into and out of the IMC) VCCSA (Sometimes called System Agent Voltage, it's your IMC and PCIe subdomain voltage) For DDR3, typical voltages are 1. VCCSA is the System Agent voltage, and should only be that high if you're trying to overclock the BCLK setting. Technically, no “safe” (guaranteed) OC over-voltage but 1. 336 Vcore under full load, and 2x8 GB of RAM Patriot Viper Steel 4400 MHz Cl19 which I've set to 4000 MHz CL15-16-16-36-52-770-2T - DRAM is 1. 3V. 08v and VCCSA is . 050 respectively. Jul 19, 2007 · Same here. 65v IO/SA but do not bother. 15 to 1. 5V. Should I try 1. You have to change the value one step or two steps at a time and then test the game you have problem with. 750V for 2400 8-11-8 on PSC IC. I have my i7 8700k running at 4. 15v or AMD SoC voltage to 1. But I'm almost back to what the mobo wants to use, Vram=1. I think 1. Nov 9, 2018 · I noticed that at stock the voltages were: VCCIO: 0. 7ghz all the time. 45 V @ 3800 mhz. Memory latency is 49. 2 V for VCCIO is the absolute max. Also, is 1. Is that voltage ok? some say 1. Lowest stable voltages I can get for my system are 1. Mar 22, 2021 · 而vccio只是在增加时才显示出对内存超频稳定性有益处，但如果设置值过高，带来的频率提升则可以忽略（见图中数据）。因此， 作者推荐在超频时vccsa应低于1. I'm having the problem that the RAM is always at 2133MHz despite changing XMP settings, and I found that other people had a similar problem and fixed it by increasing these voltages, but they only exist for Intel. 2V but nothing happens. 20v, shoots up to 1. Jan 18, 2012 · Lowering Vccsa may decrease temps by a degree or two, but the potential stability issues far outweigh the feeble gain you receive. However, good DDR4 memory will run at 1. From Raja's own Kabylake OC guide I can read this: For memory speeds over DDR4-3600 or if using high-density memory kits, voltages up to 1. 2. This includes Vcore, SA and IO. At 3. Hi, Follow the instruction, I need to increase VCCIO and VCCSA to get stability and performance. 58-1. You cannot get around this, it is locked inside the CPU since the VCCSA voltage is generated inside the CPU (once again, thanks to the IVR). 22 VCCSA in order for my computer to boot successively . 10v. For fairly average speed memory, like 3000/3200MHz, on two sticks you'll likely be fine with just 1. it is recommended to manually dial vccio 2/vccio/vccsa because of auto bombs, jedec is fine on auto but xmp or any overclock its best to manually set it. 5V will help with overclocking, if you point a fan at the sticks. 65v ) XMP, and the system seems stable for now, but one thing I do not understand. 6. To start overclocking your DRAM you want to adjust your DRAM voltage to 1. Hi, i've started to get some trouble with stability lately and I think it's because of my low vccsa and io voltages, so now i'm trying to push them from 1. 248 in HWinfo. 35V So what SA voltage do u people use with fast ram? My last ram was causing random bsod errors so I recently bought a new kit 4x8, 18-22-22-42 at 3600mhz. pwpe tdwn yhmwk fgwcvwi jnk kpjata celzt jomd scswj fbc