intel i7 4930k overclocking

[izzydawg]

hello everyone i have had a i7 4930k for a while now and have had it overclocked to 4.5ghs and stable. i have always had a custom water cooling loop and decent temps only teaching about 62 degrees Celsius. i noticed a while ago that my computer will turn on and off multiple times before it boots into windows. i started doing some tinkering and now that my cpu is set back to stock clocks it does not do that anymore, so must have gotten unstable.
i have updated the bios to the newest one(not beta) and im now trying to get a better overclock. my computer can boot into windows just fine on any clock speed I set it at from 4.1ghs-4.8ghs. eventually i becomes unstable and the multiplier goes from(41-47) down to 12 or 34 for stock clocks. i have tryed turning off all power saving modes or anything related, set my volts to 1.35-1.4 volts, im set my RAM timings manual, tryed X.M.P, tryed manual setting. re thermal pasted my cpu. please if anyone can help i much appreciate it thank you..

 

[ATMINSIDE]

Please list your full system specs and the vCore you were running for 4.5GHz.

 

[izzydawg]

My components are:
Corsair 900D
Evga 1300 watt G2 PSU
Asus rampage 4 black edition
Intel i7 4930k
Reference nvidia Gtx 770 in sli
16gb corsair vengeance 2400mhs
2 water cooling loops
First loop: 240mm radiatior and a 140mm rad. Cpu and vram water blocks swiftech D5 pump
2nd loop. 480mm rad, swiftech D5 pump, 2 xspc gpu water blocks on my 770's
400ML total for my 2 resivour
Samsung Evo 840 256gb SSD
Seagate 3tb HDD
Windows 7 ultimate 64 bit on SSD
Windows 10 pro on 3tb drive
My vcore was at 1.35 volts and 4.5gh clock
Hope this helps!

 

[ATMINSIDE]

Did you try re-flashing the same BIOS you were running previously?

 

[izzydawg]

I have not tried that yet how would I go about that? I know these a button on my motherboard to flash it?

 

[ATMINSIDE]

The same way you flashed to the newer BIOS.

 

[izzydawg]

Okay but I just updated my bios with a newer version are you saying I should go to a older bios update?

 

[ATMINSIDE]

Yes.

 

[izzydawg]

Okay I will try that but it appeared it wasn't working in that bios version? What would cause a difference?

 

[ATMINSIDE]

Sometimes simply reflashing the BIOS can fix something that became corrupted over time, alleviating the issue that has occurred.

 

[izzydawg]

Thank you I will try that here soon I will let you know of the results. Also i see a problem that seems interesting, every over clock I set I can boot into Windows fine but after about 10 mins in Windows on idle. The multiplier drops to 12-20-34? What would cause this?

 

[wingman99]

Speed step and C states. look for all the power saving settings there should be about 3.

 

[izzydawg]

Well I got home and have been running ROG cpu-Z for about 4 hours playing WOW and Diablo maxed out and have a stable 4.5ghs overclock from the settings I kept last night idk what changed but is working thank you for all the information!!