Silent Scone@ASUS wrote:
Who knows. With your climate over there, the temperature will be a big factor. This and differences in UEFI config. For instance, are you running an AVX offset now but perhaps weren't before?
Silent Scone@ASUS wrote:
Please remember that ultimately, not all samples will achieve 5GHz on all cores. The statistics from SiliconLottery.com indicate less than half. You’re hitting the thermal capacity of your setup, too. At this point, my advice would be to tune the system for the tasks you intend to use it for.
Yeah I think I will try and tune it for 4.9Ghz as best as I can and leave it there, or use an AVX offset. Better luck next time I guess 😕
When you said you first passed 5 ghz at the same exact settings you are now failing, were you using a different bios version or any different RAM settings at all?
Because while it is common for new CPU's to lose about 10mv off their minimum voltage after a short while even when not pushed to unsafe limits, they will usually remain quite stable, but yours seems to have gone for 1+ hour stable to insta-crashing, which is pretty unheard of without excessive voltage. And a 1 hour stable test means you were probably not at your bare VMIN.
What was the absolute highest load (or idle, if using manual) voltage you used?
And are you sure you were not on a different bios?
Do you have the ability to (if you were), downgrade to the same bios you did that stable test on and then test on that?
Because I found out something interesting, although it's still not proven directly but I can't be too far off...(still not jumping to conclusions yet until I can be 100% sure), but I'll just say possibly "Subtiming".
Did you test with non avx tests to verify stability or AVX tests that do NOT touch main memory, as well as your mixed AVX tests? (example: cinebench r15, prime95 29.6 build 2 with AVX/AVX2 disabled, smallest FFT's, etc?)
Nah I'm not using a different BIOS, I even had the profile saved so I could reload it exactly as it was. RAM has remained on XMP I the entire time. I've had this system for around 4 months now but didn't start overclocking the CPU until I got it under water because it was already at it's limit on air.
Highest on my previous manual mode 5Ghz OC? 1.314V highest idle, 1.270V steady under AVX load (Realbench).
Still on the same BIOS.
Do you mean RAM subtimings? I'm just using XMP I, so only the basic settings have been loaded (3200Mhz, 16-18-18-38, 2N, 1.35V) with VCCIO turned down to 1.15V because it was setting it to 1.314V for some reason, and from what I understand you don't want it above 1.3V.
It was only the other day so I ran a couple of 1 hour RealBench passes, a little bit of AIDA64 and an hour of OCCT Large Data Set as well as a few Cinebench runs and some gaming.