i5 2500k OC causing Windows 10 to freeze on startup screen.

veereihen6

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Sep 12, 2011
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Hi guys, hoping someone can help me with my current issue.

Here are my specs:

CPU: i5-2500K
mobo: ASROCK Z68 Pro3
CPU cooler: Corsair H80i
RAM: 16GB Corsair Vengeance DDR3-1600 (4x4GB)
PSU: Antec Earthwatts EA-650
GPU: EVGA GTX 1080 FTW
Boot drive: Samsung 840 (120GB)
OS: Win10 Anniversary

Here is the history:

For about 2.5 years I had been running at a 4.6Ghz OC (+.0005V offset), with no major issues, would run prime95 like a champ for 24hrs, but I was running into an intermittent problem where upon during startup, the PC would not boot.

It would basically sound like the fans would spin up, but then the it would either shut-down, and attempt to restart, or just hang during early stages of startup without going thru the boot up process (with nothing on-screen).

It was happening several times a week, but would usually startup after several resets, at one point, it would not start at all, so I cleared the CMOS, and removed the OC and went back to default settings for a while. That issue hasn't cropped up again, but....

Here is the current issue:

I've again tried to OC, but anything higher than 4.3 @+.0005v offset and +.0004 additional turbo causes it to hang/freeze on the initial windows boot screen. I have tried to bump up the offset voltage and the turbo voltage with no success. It just will not start windows. A 4.3Ghz OC on a 2500k is barely a mild OC IMHO.

Any suggestion on what settings I can look into?
 

veereihen6

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Sep 12, 2011
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18,510


I can only get into Windows at a lower OC. Would I be able to see if the PSU's performance is diminished even with a lower overclock? If so, how can I go about this?