Strange Overclocking Failure

[PeterBread]

Hey guys,

 

So I've been trying to overclock what according to most people say should be the easiest processor to overclock, my pentium g3258. I set my cpu ratio to 4.4ghz and ran benchmarks and stress tests, and my computer passes all of them just fine. I have tried 4.0ghz at 1.3v to 4.5ghz at 1.35v all the way to even 4.0ghz at 1.38v. My temps are just fine idling at 29-32 degrees and hovering around 65-70 degrees under full load. However if I boot up my computer from a "cold" start (boot up after a long period of non-use) it will work for about 10 to 15 minutes or so then completely shut down showing the the "previous overclock settings has failed", but I simply can just enter my BIOS and use the same OC settings and the computer will last the entire rest of the day without any problems. I have already tried a 2nd pentium which gave me the exact same results.

 

Any ideas?

 

Intel Pentium g3258

MSI Z97 SLI-G55 Motherboard

EVGA GTX 970 FTW

Corsair Vengeance 8GB RAM

Corsair CX750M PSU

Samsung 840 EVO 120gb SSD

WD BLACK 1TB.

Enermax Black twister tower cooler.

 

Thanks~

[jamie.k.hofer]

Those voltages are quite high! I can get my 5820k to 4.5GHz with only 1.295V, but it could be the lottery in action.

[PeterBread]

I have left my voltages in [auto] as well letting my MOBO do the work, but still no dice. 

 

Those voltages are quite high! I can get my 5820k to 4.5GHz with only 1.295V, but it could be the lottery in action.

[Tim Drake]

I have left my voltages in [auto] as well letting my MOBO do the work, but still no dice. 

nononononono don't let your Motherboard do it.

 

Try 1.3v at 4.6Ghz. That's pretty standard for the Pentium K

[PeterBread]

I have. I've tried 4.5ghz at 1.3v and it hangs just fine with great temps. It's just when I boot from a cold start, it fails after 15 minutes or so.

[profesorfrink42]

Did you increase VRIN/VCCIN/Whatever it's called in your mobo that usually starts at 1.8V?

[PeterBread]

It is at 1.89v according to MSI command center.

Did you increase VRIN/VCCIN/Whatever it's called in your mobo that usually starts at 1.8V?

[Samsterstorm]

Try watching this mate! Also that voltage is way too much for a haswell at the clock

 

[PeterBread]

That is the very video that got me into buying a pentium as my first unlocked processor. I have tried almost all the different GHz-voltage combos possible, and each time the cpu passes stress tests just fine, it really is just on COLD starts that it fails. But after it reboots once, I can run nearly any overclock setting for the rest of the day without any problems. At this point, I may just try an entirely new MOBO.

Try watching this mate! Also that voltage is way too much for a haswell at the clock

 

[Master Disaster]

Have you flashed the latest UEFI?

http://uk.msi.com/support/mb/Z97G55_SLI.html#down-bios

[PeterBread]

I updated my BIOS to the latest version 1.7 and it hasn't changed anything

Have you flashed the latest UEFI?

http://uk.msi.com/support/mb/Z97G55_SLI.html#down-bios