Scary volts with 4790k and Gigabyte Z97-n Wifi

Soldato
Joined
16 Jan 2006
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3,049
Hi there.

Stulid already helped me with this on the 4790k owners thread so thanks Stulid but I thought I might get further help posting on here.

I built my pc yesterday. Once I'd figured out the proper way to put the 24pin Silverstone PSU pin in, all was good.

However, scarily, I booted into BIOS to check AHCI mode was on, did nothing else then installed Windows and had a faff around and realised that the BIOS and HWMonitor was reporting vcore of 1.415 volts. I immediately switched windows power mode to power saver which throttled it to 800mhz at 0.9ish volts.

Stulid says this is a Gigabyte BIOS issue and I should update...this of course I will do when I get home tonight but if the voltage being reported was correct, haven't I been running at potentially chip killing voltages for about an hour? Is this likely to have caused any long term harm?

Temps after I went back into BIOS were 49c but I did see a high of 81c in HWMonitor.

So, I have a pc that reports it runs at 1.415v in bios and then throttles down to less than 1v in Windows. Hopefully a new BIOS cures this but if not, what's the best way to keep the voltages normal? As previously mentioned, all I did was check AHCI mode and crack on with WIndows install.

Additionally, HWMonitor is reporting that one of my int temperatures is 128c!! I'm pretty sure this moust be incorrect as the motherboard was hardly warm after I switched off and checked.

All my fans are working and unobstructed.

Can anyone suggest some safe settings to use in case 'm still showing 1.415v in BIOS after the update?

Thanks a lot.
 
An hour at that won't be enough to kill it.

81C is OK too and is what i get when running at 4.7GHz.

Do the BIOS update (use qflash) and report back, you should see an improvement and with the improvement of Vcore your temps will reduce too.
 
Thanks again.

I am a bit concerned as to what would have happened had I not checked out of interest.

Surely these boards should not be allowed to volt that high out of the box without user intervention?

Also what do you make of the 128c int temp?
 
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Thanks again.

I am a bit concerned as to what would have happened had I not checked out of interest.

Surely these boards should not be allowed to volt that high out of the box without user intervention?

Also what do you make of the 128c int temp?

Its all z97 my friend ;)

If that tenperature is not one of the cores then it's fine
 
If you are running at stock just set the vcore to 1.2v for now and make sure that LL is on low or off. That will be fine to get it up and running before having a play.
 
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