Originally Posted by Mr.N00bLaR
Ok... I'm back. This time with better cooling and my goal is either 4.9GHz or 5.0GHz
At 4.9GHz I'm seeing the clock speed throttle down to 800MHz while stress testing. I'm priming with p95 v28.9 on my 6600k now.
i5-6600K, Gigabyte Z170XP-SLi-CF, Corsair TX950 PSU
Load temp: 81C (hottest core, others within 3C)
Clock speed - 4.9GHz (100x49)
BIOS vcore - 1.45v
Windows hwinfo64 load vcore - 1.44v
LLC: - High
PCH Core - 1.06v
No settings enabled in VR section of BIOS
FCLK - stock / 800MHz
Cache - 3600MHz
VCCIO - 1.25v
VCCSA - 1.25v
Package power limit 1,2 - 300W
Package power limit time - Auto
Platform Power limit 1,2 - 300W
Platform Power limit time - Auto
Power limit 3 - 300W
Power limit 3 time - Auto
C1E - Disabled
C3 - Disabled
C6/C7 - Disabled
C8 - Disabled
Package C State limit - Auto
CPU thermal Monitor - Auto
CPU EIST Function - Disabled
This so far seems to be happening in the FMA3 FFT small tests. I thought these testes were producing a lot of heat but they don't seem to be... I see the cores around ~72 when the voltage is at 1.44 and clock is at 4.9 then both the voltage and clock go down significantly within 5-10 seconds.
I assumed that this was some kind of power throttling which is why I change the power limits from Auto to 300W each. I'm not sure if the time setting needs to be changed too, or if the power limit setting actually did anything. None of the workers have stopped - they are all still going.
EDIT: Canceled my P95 test after a successful hour and ran Realbench, I didn't make it very far until it crashed. Seems like I need more voltage but it also seems like my VRMs possibly are causing throttling.. Maybe this board is only good for 4.6ish?