Issue AVX Offset - Coffe Lake - Gaming
Issue AVX Offset - Coffe Lake - Gaming
CompuTronix:
Just set the value to zero (0), which means no offset, so AVX is turned off.
CT
I can't set 0.
Only from Auto or from 0 to 31 :-(
sorry... from 1 to 31
CompuTronix:
If BIOS doesn't permit choosing "0", you might need to type "0" and press Enter. If that fails, try selecting "1". This should narrow your oscillation issue to around 100MHz.
No, setting 1 offset AVX isn't a viable fix:
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The issue lies because the AVX offset frequency is triggered by playing:
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For OC operations, it's beneficial to be able to adjust AVX Offset, which improves temperatures and allows higher OC speeds. For gaming, these settings would ideally remain inactive.
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Would you consider a BIOS update resolving this problem?
CompuTronix :
Respectfully, I fully comprehend the issue and apologize if my explanation isn't clear.
CompuTronix :
Apologies, but it seems you're still struggling with AVX offset. One more time:
(2) If your motherboard BIOS enables AVX while gaming, the optimal short-term fix is to adjust the offset value to "1".
(4) If you're certain you don't use AVX, then again set the offset to its smallest possible value, which here is "1" because your ASRock Fata1ity K7 Z370 BIOS doesn't let you choose "0".
Setting AVX offset to "1" will reduce fluctuations and allow you to achieve the highest clock speed during gaming until ASRock releases an updated BIOS that addresses this issue.
Choosing an offset of "1" means it changes by only 100MHz, from 4.9GHz to 5.0GHz. Understood?
Please don't ask this question again... this is the most helpful solution I can offer for your situation. I'm finding it hard to think of any other way to make this clearer.
CT
Mmm....
Have you checked my previous response?
My overclocking isn't stable with AVX offset 1, since my current speed is 5gz, and the 4.9GHz setting isn't stable. But without AVX it works fine. Then I lowered the offset to 3, but I still saw oscillations at 300Mhz.
I see that 100Mhz changes aren't a big concern.
But what about 300Mhz or more?
This is my final question.
Thank you.
My OC doesn’t work well with AVX offset 1 because my OC is 5gz and the 4.9 setting on AVX isn’t stable. But when I lowered the offset to 3 there were oscillations at 300Mhz. I know that’s not a big concern, but what about 300mhz or higher? This is my final question. Thank you.
CompuTronix :
d4icon :
My OC isn't stable with AVX offset 1 because my OC is 5gz and the 4.9 on AVX isn't stable. But without AVX it works. I had to reduce the AVX offset to 3, which caused oscillations at 300Mhz. I know that 100Mhz oscillations aren't a big issue. But what about 300mhz or higher? This is my final question. Thanks.
Oscillations at 300MHz aren't a problem unless they cause frame stuttering in games. If your overclock isn't stable at 4.9 or 5.0, you should increase the Vcore but keep it below 1.4 volts and ensure core temps stay under 85°C. If cores hit throttle at 100°C, frame stuttering usually happens.
d4icon :
My OC is 5gz, and 4.9 on AVX isn't stable. But without AVX they are.
"Without AVX"? I thought you couldn't disable AVX! I must be misunderstanding. Please clarify.
Note: Sometimes BIOS settings have numbers out of order. Check your AVX Offset table to confirm "0" isn't at the bottom... for example:
1
2
3
...
29
30
31
"0"
OR
"Disable"
I've seen strange setups in other motherboard BIOS, so it's worth checking.
I'll try explaining again briefly.
I've done OC at 5ghz with stress using prime95. Prime95 lets you test stress with AVX and without it, as I thought. When I say "without AVX", I meant testing both AVX and not using it in prime95, but only in prime95.
So...
Prime95 without avx is stable at 5 GHz with good temps and voltage—ideal for gaming.
Prime95 with avx isn't stable at 5ghz.
To get stable at 5GHz I had to use an AVX offset of 3, which caused 300Mhz oscillations.
If everything works in BIOS when playing games, I'd only get 5GHz without those 300mhz spikes from the AVX setting.
Do you understand now?
I now have a clearer grasp of your situation, thank you.
While Prime95 v26.6 Small FFT (without AVX) is suitable for thermal testing, I recommend avoiding later P95 versions that include AVX. More suitable tools for stability checks are Asus RealBench, which performs thorough system evaluations—covering CPU, RAM, and GPU—using a realistic AVX workload:
• Asus RealBench - http://rog.asus.com/rog-pro/realbench-v2-leaderboard/
AVX activation should not be automatic; it must be manually set to "0", "Disable," or "Auto" for optimal results.
I have tested various motherboard and CPU setups, including my own rigs, and consistently found AVX Offset adjustments to be effective, allowing the system to select "0" or "Disable."
I rarely use applications that rely on AVX, so I don’t require AVX offset, which is typically left at "0" and has never caused issues.
For thermal testing, I prefer P95 v26.6 Small FFT (without AVX), but for stability assessments with a 5.0GHz overclock, I use Asus RealBench.
Although your ASRock Fatal1ty K7 Z370 motherboard is new, the lack of proper AVX offset functionality is disappointing and hindering performance. I hope ASRock addresses this by releasing a BIOS update soon, enabling users to set AVX offset to "0" or "Disable" and enable it during gaming.
In any case, you may wish to keep refining your overclock settings to reach stability above 4.7GHz.