CPU Vcore spiking to insane levels (2+ V), despite being set much lower.

AzeTheGreat

Commendable
Jan 7, 2017
2
0
1,510
CPU: i5-6600k
Cooler: Hyper 212 EVO
Motherboard: GA-z170-HD3

Using HWMonitor to keep track of my CPU Vcore, I see very large maximums recorded. I've yet to observe the spikes happen myself, it's simply recorded under the 'max' column. These are the four spikes I've noticed so far:

4.6 GHz @ 1.27 V: 1.5 (ish) V spike
4.5 GHz @ 1.25 V: 1.5 (ish) V spike
4.5 GHz @ 1.25 V: 2.004 V spike
Default BIOS: 2.016 V spike

All of these configurations appeared to be 100% stable (20+ minutes of Prime95 and 10 runs of IntelBurnTest at the highest setting). The fact that this issue is occurring at default BIOS settings makes me think that either HWMonitor has an issue, or something else is horribly wrong (Shouldn't 2+ V instantly fry the CPU? It must be wrong...right?). The rest of the time, however, HWMonitor is exactly in line with what I would expect the voltage to be.

MqwhtP6.png

Strangely, the max VID is much lower than the max Vcore...

So, any suggestions for other monitoring software to try (I haven't been able to find any that records maxes...), troubleshooting to try, or just reassurance that there's no way voltage is that high would be nice.

Edit: I just recorded a video with HWMonitor and Gigabyte's Monitor up. HWMonitor showed a spike to 2.412 V, but Gigabyte's registered no change. At this point I think I'll just get rid of HWMonitor and assume that everything's alright, though confirmations that I'm not risking my CPU would be nice.

 

jp95

Reputable
Apr 5, 2014
115
0
4,710
That is a strange reading, what is more strange is the TMP1 reading of -57c... LOL. Im not sure whats up with your motherboard but I would not trust any reading it gave me.

Its possible that it is an incorrect reading. But it is alarming as 2v even for short amounts of time will kill your cpu. I would RMA that motherboard yesterday, or return it if possible.

Also all of your 12v 3.3v and 5v readings are horroble. your voltages should only fluctuate by up to 5% your 12v voltage fluctuated hundreds of percent. In fact it never even hit 1v according to your sensors?


Seems like your motherboard is giving incorrect infor since i dont think your pc would run with less than 1v on the 12v input.

What power supply are you using?
 

AzeTheGreat

Commendable
Jan 7, 2017
2
0
1,510


I don't think it's actually the motherboard, I think for some reason HWMonitor just doesn't play nicely with it. Using Gigabyte's software I don't get the insane voltage spikes, and the voltage readings are all right where they should be (12V is 12.168V right now). Really not sure why my board is so incompatible, but I guess it is.

PSU is the EVGA 650 G2.