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Windows 7: Voltages (NEVER OC'd)

23 Aug 2010   #1

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
Voltages (NEVER OC'd)

I HATE messing with voltages. Because of this, I wouldn't even begin to know how. That's what makes this problem a little odd.

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Do the numbers under +12V , -12V and the temps make anyone else worry?

It's a snap of Speed Fan that I started because I was kinda stupid. I took a can of compressed air to the heatsink on the processor. By the time I finished the rest of the case, and restart, I was watching temps SOAR. Protection kicked in at about 103C and shut the machine down. Found out that I'd blown the fan off of it's mount, and had to reseat the heatsink/fan. A $2 tube of heatsink compound and I'm getting near my old temps. (Whew, right?) I'd still like to drop about another 5 degrees, just because...

Then I started looking at this Speed Fan readout.

Seems to me that every time I hear about someone OC'g, they mention voltages on the processor. Judging from the numbers, do I need to adjust anything in BIOS?

My System SpecsSystem Spec

23 Aug 2010   #2

Win 7 64 bit professional

There are many voltages that you can change when overclocking including CPU core, CPU VTT, DIMM etc.. However the 3.3 V, + 5V and +12 V are tied directly to the PSU. (At least to the best of my knowledge). Clearly speed fan is not reading the right voltages for your specific motherboard. I doubt that your PC would operate with these indicated voltages. Time to pull out a multimeter and check voltages on the motherboard.
My System SpecsSystem Spec
23 Aug 2010   #3

Windows 8.1 Pro w/Media Center 64bit, Windows 7 HP 64bit

I have tried SpeedFan also and get those bad readings, so I dumped SpeedFan. Can't trust its readings. My Asus motherboard came with Probe and I use it.

My System SpecsSystem Spec

23 Aug 2010   #4

Win 7 Pro x64/Win 8 Pro x64 dual boot

Yeah, I get wacky readings from Speedfan on my ASUS as well. I was hoping the new version would work but no go. My temps are right, but nothing else.
My System SpecsSystem Spec
24 Aug 2010   #5


you can undervolt the cpu The "Undervolting" Guide
My System SpecsSystem Spec
24 Aug 2010   #6

Win 7 Home Premium 64 Bit

speedfan is rubbish , really though its causes more issues than it has ever solved and its monitoring is difficult to understand and in most cases way off , especially when it comes to voltages
My System SpecsSystem Spec

 Voltages (NEVER OC'd)

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