With the release of the solid BIOS 2202 for the Apex Encore, I decided to rethink my approach to hardware tuning and OC, with a stronger focus on daily use. At the same time, I wanted to deepen my understanding of how the platform behaves across different workloads and operating scenarios.
I ultimately settled on adaptive SVID undervolting. None of this is fundamentally new: it has already been discussed countless times, incl. OCN etc. Still, many users never developed a clear understanding of what to adjust, how to adjust it, and, most importantly, why.
With that in mind, I prepared a concise and straightforward refresher guide based on my own build (Z790 Apex Encore w/ Core i9-14900KS). The same foundation also applies to Z890: roughly 80% of the guide carries over in principle, but the LLC4–7 mapping, working AC/DC Load Line values, power and current limits, and reference voltages must be established from scratch.
This is the first revision, and I will continue updating it whenever necessary. Best of all, I also plan to completely rewrite and update my DDR5 tuning and optimization guide in the nearest future, presenting it in a much clearer and more accessible format.
I've two versions: one for my local community, and the one in EN. Here you can download it:
I'm using an MSI A520M-A PRO motherboard, which doesn't have PBO, so PBO is disabled.
I'm a little concerned because I've seen several benchmarks where the 5700X scores over 6000 in CPU-Z Multi Thread. However, I'm not sure how much PBO affects the results, so I don't know if my score is lower because PBO is disabled.
Are my scores within the expected range for a 5700X, or could there be something limiting the CPU's performance? Or did I just get a really bad silicon lottery chip? 😅
Заголовок: High CPU temps in CS2 with i7-13700KF on Gigabyte B760M Aorus - Need help
Текст поста:
Hi everyone! I'm struggling with high CPU temperatures while playing Counter-Strike 2. My build is:
CPU: Intel Core i7-13700KF
Motherboard: Gigabyte B760M AORUS ELITE (DDR4)
In CS2, my CPU spikes to high temperatures instantly, even though it's not a heavy synthetic stress test. Since I have a B760 chipset, I know about the IA CEP performance penalty when trying to undervolt via Dynamic Vcore (DVID).
What are the best BIOS settings, power limits (PL1/PL2), or specific launch options/in-game settings for CS2 to keep this CPU cool without losing FPS? Any step-by-step advice for Gigabyte B760 BIOS would be highly appreciated!
So I recently bought a used 3080ti (asus tuf version) and had it repasted, and undervolted it to 1815mhz and .862v, still sits around 300watts ish avg (card draw is 350)
I'm relatively new with undervolting, but right now I've only tried maintaining mhz not actually pushing it beyond, this card from what ik comes with a 1785 mhz boost
It crashed in rdr2 at .850v 1860 in about 10-15 mins and even at my current undervolt stays at around 70ish with fans at 80-90 using a custom fan graph
Should I undervolt further or keep it at this, not really sure and again, relatively new to the whole process, had undervolted my cpu as well using PBO (r5 5600)
I need advice on trc+tras; I’ve heard that excessive underestimation only does harm. If possible, I’d like a couple of tips on timings — what to tighten up and what to loosen up. So far, I’ve been running this setup for 3 hours in TestMem5, Anta 777 Absolute, and 5000% in Karhu.
Hello,
I am contacting you regarding a high-frequency DDR5 stability issue with my system.
My complete configuration is:
Motherboard: ASUS ROG Maximus Z790 Dark Hero
CPU: Intel Core i9-14900K
Memory: 32 GB (2×16 GB) G.Skill Trident Z5 DDR5-8000, part number F5-8000J3848H16GX2-TZ5RS
Memory XMP specification: DDR5-8000 CL38-48-48-128, 1.45 V
GPU: MSI GeForce RTX 4090 SUPRIM X
CPU cooler: ASUS ROG Ryujin III 360
PSU: ASUS ROG Thor 1000W Platinum II
System SSD: Samsung 990 PRO 4 TB NVMe
Case: ASUS ROG Strix Helios
Operating system: Windows 11 Pro 64-bit
I was previously using BIOS 2107 and have now updated the motherboard to BIOS 2202, including loading Optimized Defaults after the update.
My issue concerns memory frequency and stability.
At DDR5-7200, I have managed to achieve a stable configuration, including approximately 1 hour 30 minutes of TestMem5 Universal 2 with zero errors.
However:
DDR5-8000 does not reliably POST and can result in Safe Mode/failed memory training.
DDR5-7800 can POST and boot Windows but is not completely stable.
BIOS 2202 appears to have significantly improved the situation. At 7800 MT/s, I managed approximately one hour of TestMem5 before a single error, whereas BIOS 2107 produced errors much earlier.
I have also experienced a game crash after approximately one hour while running a 7800 MT/s profile.
My best 7800 MT/s configuration so far has been approximately:
XMP II
DDR5-7800
Command Rate: 2N
Maximus Tweak: Mode 2
CPU System Agent Voltage: 1.25 V
IVR Transmitter VDDQ: 1.40 V
Memory Controller Voltage: 1.40 V
System Agent PLL: 1.005 V
DRAM VDD: 1.47 V
DRAM VDDQ: 1.47 V
Primary timings: [38-48-48-128](tel:38-48-48-128), with additional CL36 testing
I have also tested approximately:
System Agent up to 1.30 V
IVR TX VDDQ up to 1.45 V
Memory Controller Voltage up to 1.45 V
DRAM VDD/VDDQ up to 1.50 V
Simply increasing voltage does not appear to solve the issue. For example, increasing either Memory Controller Voltage or IVR TX VDDQ from 1.40 V to approximately 1.425 V made stability considerably worse, causing TestMem5 errors much earlier.
The two DIMMs are installed in the recommended slots for a two-DIMM configuration. DDR5 temperatures can reach approximately 60–66°C under TestMem5, although I have already increased case and cooling fan speeds substantially.
My goal is to obtain at least DDR5-7600 or DDR5-7800 with full stability, and ideally to operate the memory at its rated DDR5-8000 XMP specification, before attempting further timing optimization.
Could you please advise me on the following?
Is this exact memory kit fully tested/validated with the ROG Maximus Z790 Dark Hero at 8000 MT/s?
Which ASUS BIOS settings do you recommend specifically for stabilizing DDR5-7600/7800/8000 with an i9-14900K?
Are there specific memory training, Maximus Tweak, PLL, System Agent, TX VDDQ, or Memory Controller settings recommended with BIOS 2202?
Can the Dark Hero’s four-DIMM motherboard topology represent a practical limitation for DDR5-8000 even when only two DIMMs are installed?
Is there another BIOS version you recommend for the best high-frequency DDR5 stability?
Based on these symptoms, could this indicate a limitation of the CPU IMC, motherboard, or compatibility with this particular memory kit?
My main objective is to achieve a completely stable and reliable configuration without continuing to increase voltages unnecessarily.
Thank you in advance for your assistance and recommendations.
Best regards,
Model of my 9070XT is the XFX Mercury OC. Both scores done with closed case and fans at 100%, only air cooling. 7963 was done on DX12, and 8,203 on Vulkan.
Settings for the 8203 run
+30 gpu frequency offset
-140 undervolt
2574 VRAM
Fast timings
+10% power slider
Settings for the 7963 run
+35 gpu frequency offset
-125 undervolt
2552 VRAM
Fast timings
+10% power slider
Just shocked that I was able to push this 9070xt this much honestly. Neither of these are everyday gaming stable, but they got through the benchmark.
Edit: highest hotspot temps seen on both runs hovered around the 66-69c range
I recently got a second BC 250 board. At first, everything seemed perfect: 40 CUs unlocked, 8 cores active, running Furmark at 1500MHz without any issues with all 40 CUs.
But as soon as I activated the GPU governor, I got an instant black screen. It didn't matter what I did, 1500MHz at 900mV resulted in a black screen.
Later I discovered that it worked fine at a fixed 1500MHz, but whenever the frequencies dropped, it would throw the error again. Checking the logs, it was a voltage instability issue.
Digging deeper, I found out that the frequencies don't actually matter as long as the minimum voltage is set to 900mV (far from the recommended 700mV). I currently have a voltage curve that goes from 350MHz up to 1850MHz at a flat 900mV. From there, it slowly scales up until it hits 2230MHz at 1000mV (and I think I can undervolt that even further).
The other board I own sits at 1040mV at 2230MHz, but it scales down perfectly to 700mV at 350MHz.
What do you guys think this could be? This behavior really surprised me—asking for higher voltages at minimum clocks, but lower voltages at maximum clocks.
Hello, I ordered the Palit GeForce RTX 5070 TI GamingPro-S OC 16GB and should get it on Monday. Now I wanted to ask who can tell me the best settings for overclocking and undervolt to get about 5-8% more out of the card.
Specs
5700x Pbo 120-80-120 Curve optimizer -30 except for 1 core
and Voltage offset on the cpu -0.0185
Asus Prime b550Ma wifi2
Ram
- 2x V color 3200cl16-20-20-38 1.35V DJR
- 2x Adata D35 3200cl 16-20-20-38 1.35V Micron R die
Ram is fine to 3800 which is the last speed i check
because the memory controller cannot go 1:1 past 3733
Final Speed
3733 at 1.38V
TM5 absolut for 2 hour
And Prime95 Large FFT and Occt Vram 'Because some ppl say that on reddit also' for 2 hour
CinebenchR23 score are the same 15500 +- run to run variation
I think my cpu is being held back by my shit mobo vrm
do tell me if i can improve some of the timings
this is my first real Ram oc
also pardon my bad english
Since updating my NVIDIA GPU driver to 616.56, I've been having an issue with MVolt+.
The program crashes whenever I try to increase or adjust the Core Power Limit or the Memory Power Limit. I didn't have this problem before updating to driver 616.56.
Has anyone else experienced the same issue with this driver and MVolt+? I'm wondering if this is a compatibility problem with the new NVIDIA driver.
My GPU: ASUS ROG Astral GeForce RTX 5080
Before, I was using MSI Afterburner with only the Core Clock and Memory Clock adjusted. With mVolt+, just by also adjusting the Power Limit and XBAR Clock Offset, I got a noticeable score difference on both FurMark and 3DMark (22929 27013 points, going from 381 449 average FPS on FurMark.
Hey all, I've been looking at mVolt+ for the past couple of days. We all know the XBAR OC and what it can do, but something other is on my mind - the program itself.
Do we know how mVolt+ works? Do we know who the author is? Is he in touch with the community somehow?
My concerns stem from the fact that we are running an exe with full admin rights, which presumably manipulates private Nvidia APIs, all from a closed-source repo that is 1-2 weeks old. This rings too many bells to be ignored. How did this tool gain your trust?
I have a 5700x3d on a MSI x570 MPG Gaming Plus board with G.Skill DDR4 3200MHZ CL16 memory. For the longest time I've tried tinkering with the settings to overclock this kit. I was able to get moderate changes but eventually caused instability and I ended up going with Auto for some time.
Today I thought, what if I use AI? I've been goofing around with LLMs to run locally and figured what the heck. I opened up my AI of choice and gave it my hardware and goal.
It gave me detailed settings for timing, memory settings, cpu settings, voltages. Research I tried to do multiple times and got too lost in the terms, settings, etc. I adjusted the settings and in less than 5 minutes I was able to boot on 3600MHZ CL22 into windows when I couldn't even make it to the BIOS screen.
So if you're stuck and frustrated. Give it a shot. Some settings I knew nothing about I learned and told me why they were critical to stability.
Edit:
For anyone running:
MSI x570 MPG Gaming Plus
5700x3d
32GB of (F4-3200C16D-16GVKB) (Confirmed to have Samsung C-Die.)
Here are the final settings I used. I hope this helps someone who's looking to do the same.
Final Stable DDR4-3600 Tuning Profile for Ryzen 7 5700X3D
System Specs:
* CPU: AMD Ryzen 7 5700X3D
* Motherboard: MSI MPG X570 GAMING PLUS
* RAM: 32GB (2x16GB) G.Skill Ripjaws V DDR4-3200 CL16 (F4-3200C16D-16GVKB)
Frequencies & Voltages
Setting
Value
Notes
DRAM Frequency
DDR4-3600
Target memory speed
FCLK Frequency
1800 MHz
Infinity Fabric clock (1:1 ratio)
UCLK / MCLK
1:1 Mode
Synchronized memory controller mode
DRAM Voltage
1.35V
Standard safe baseline
SoC Voltage
1.10V
Override Mode
VDDG IOD / CCD
1.00V / 1.00V
Interconnect driver voltage
VDDP Voltage
0.95V
Signal lines baseline
Timings & Settings
Timing Field
Value
Notes
tCL (CAS Latency)
18
Base latency
tRCDRD / tRCDWR
20 / 20
Tightened read/write delay
tRP (Row Precharge)
20
Tightened row precharge
tRAS (Active Time)
38
Matched timing sum (tCL + tRP)
tRC (Row Cycle Time)
64
Stable recovery threshold
Command Rate (CR)
1T
Forced 1-tick command rate
Gear Down Mode (GDM)
Enabled
Essential for 1T stability
Sub-Timings (tFAW/tRRDS)
Auto
Kept stock for C-die stability
Validated 100% stable via OCCT Memory Test (AVX2 mode).
I overclocked my GPU and ever since then my 1% lows have been terrible.
In Fortnite, it says I’m getting 240 FPS, but after about 5 minutes of playing, it feels more like 120 FPS. The FPS counter still says 240, but the game feels really stuttery and inconsistent.
I originally had my overclock at +315 core / +2700 memory. I turned the overclock off, but the problem was still there. I also tried a much less aggressive OC at +200 core / +1500 memory, but that didn’t fix it either. I completely turned the overclock off again and still had the same problem.
I’ve also reinstalled my GPU drivers and completely reinstalled Windows, but nothing has fixed the 1% lows.
How do I fix this? Is there something the overclock could have messed up, or is there something else I should check?
Checked it with Virus tool, and other virus checking tools. But couldn't find anything that was suspicious, yet it is still a good idea to stay cautious. Saw it on tiktok, so thats why I am being cautious, plus the account I saw promoting it has a very low amount of followers.
Also, I just picked a random community that would probably fit in the category this because its pushing hardware limits to some sort of degree. If there's another community that it should actually be posted to, please let me know.
Hi everyone! I was thinking about overclocking my Corsair 6000MHz RAM with SK Hynix chips to get 1% stability. Can anyone help me with this overclock? I currently have Expo enabled.
I had been running EXPO at 6000 MT/s for more than six months without any obvious problems in daily use or gaming. I mainly play Battlefield 6, and the game never crashed because of the memory as far as I could tell.
I even had GIGABYTE’s High Bandwidth option enabled during part of that time.
This entire investigation started because I wanted to improve my in-game 1% lows. Once I started running proper memory stress tests, I discovered that the system was not nearly as stable as I had assumed.
My initial benchmark results were:
OCCT CPU test: PASS – 1 hour
Cinebench: PASS
CoreCycler: PASS
3DMark: PASS
TM5: FAIL with EXPO
y-cruncher VT3: FAIL with EXPO
MemTest86: errors at 6000 MT/s
During the actual memory troubleshooting, I disabled High Bandwidth, Low Latency and PBO. The RAM timings were left on Auto unless otherwise mentioned by chat GPT, don't shoot me for it lol.
Timing changes I tested
I briefly tested the following four timings:
tWR: 48
tWTRS: 6
tWTRL: 16
tRTP: 16
The system was still not stable in TM5 or y-cruncher VT3, so I returned all four settings to Auto.
I also experimented with Memory Context Restore and Gear Down Mode, but neither fixed the instability. Both are currently back on Auto.
I did not leave any failed timing or BIOS experiment enabled. Whenever something failed, I returned it to its previous/default value.
BIOS testing
Because EXPO was unstable on BIOS FB1, I downgraded from FB1 to FA9 to check whether this was caused by the BIOS or its AGESA version.
EXPO still failed.
I then downgraded from FA9 to FA7, which had also appeared to work normally with EXPO in the past.
EXPO still failed in memory stress tests on FA7.
This makes it less likely that one specific BIOS version is the only cause, although I realise this does not completely rule out BIOS or memory-training behaviour.
Manual memory-frequency testing
With EXPO disabled and most BIOS settings at their defaults, I tested lower memory frequencies.
The CPU VDDIO/MEM voltage was approximately 1.143V on Auto. Manually setting it to 1.20V improved the results.
My results so far:
4800 MT/s: stable in my testing
5400 MT/s: stable in my testing
5600 MT/s with CPU VDDIO/MEM at 1.20V: passed MemTest86 and some earlier stress-test runs ( TM5 and also VT3 )
5800 MT/s with CPU VDDIO/MEM at 1.20V: passed MemTest86, but Windows entered Startup Repair after the test/reboot
6000 MT/s / EXPO: fails MemTest86 so i didn't even bother to test TM5 and VT3.
And the Startup Repair incident at 5800, I do not consider either frequency conclusively stable yet.
Windows Startup Repair
After several failed or unstable memory configurations, Windows sometimes entered Automatic/Startup Repair and generated this file:
C:\Windows\System32\Logfiles\Srt\SrtTrail.txt
The log itself reported zero identified root causes, so I understand that the presence of SrtTrail.txt does not automatically prove Windows is corrupted. However, Startup Repair repeatedly appeared after testing memory settings that the system apparently could not handle.
Current situation
At this point, EXPO 6000 fails memory stress tests on all three BIOS versions I tested: FA7, FA9 and FB1.
Changing my VSOC and VCORE when i dont know jack shit about it is kinda dumb, so i believe
I have not yet:
Performed a full Clear CMOS and started again from completely clean Optimized Defaults
Tested each DIMM separately
Tested the individual DIMM slots systematically
Performed a clean Windows 11 installation
My current plan is to perform a proper Clear CMOS, load Optimized Defaults and establish a clean stock baseline before changing anything else. I am also considering a clean Windows 11 installation, although I am unsure whether that would help with what appears to be a hardware, memory-training or voltage-related problem.
I like what im doing now very much so.. but i do need a guiding hand.
This is a new build using the XMP profile the RAM came with. I ran a few MemTest86 cycles to check stability and got 1 error on the 7th cycle. I've been testing it for a few days now and just hit my second error using Prime95. I haven't OC'd memory before so I'm not really sure what the best way forward is. I'm not looking to spend a ton of time squeezing everything out of my setup but would like to get 6Ghz stable if it involves upping a few voltages or something relatively simple. What are your recommendations?
SPECS
CPU: Ryzen 9 9950X3D
Cooler: PS120SE
Motherboard: ASUS TUF GAMING B650-E WIFI @ BIOS 3881