CPU Voltage concern

**magicman** · 08-12-2006, 05:16 PM

I've recently been taking a close look at CPU-Z after a few crashes during games. I've noticed that the core voltage has been fluctuating quite a lot either side of the bios setting, which is currenty at 6.6% above base, which I think works out at about 1.492. Here's a screenshot of the ballpark of highest and lowest settings in ~1min period, at 100% load.

I'm pretty worried by this, although I have tended not to look at voltages since I got the new board in my sig, surely the voltage shouldn't be fluctuating quite this much, on a constant 100% load? Temps are alright, around 46-50 degrees on full load, but it's just this voltage thing. Am I looking at a faulty board, or underpowered psu, or what?

Jet · 08-12-2006, 06:05 PM

They shouldn't be fluctuating that much.

**magicman** · 08-12-2006, 10:04 PM

That's what I thought, that's why I'm worried. I just know that damage is being done as I write this. This is the link to my psu & stats, and my board is in my sig. What does your gut tell you is the problem? I'm leaning towards the board myself, but I just really don't want it to be. A PSU is so easier to replace.

**magicman** · 08-15-2006, 12:15 AM

Anybody else got some input to this problem? If it is a real problem, it sure isn't going away...

[-0MEGA-] · 08-15-2006, 12:45 AM

Mine fluctuates from 1.376 to 1.456 within about 30 seconds under load, and at half load.

I have mine at stock settings, but I havent seen any crashes yet. I dont think the crashes would be related to the voltage going up, since CPU's can take quite a jump in voltage and still work well, what may be the problem is that the voltage gets too low under load, and can't handle it.

08-12-2006, 05:16 PM	#1 (permalink)
magicman Moderator - F@H Guru Join Date: Jan 2005 Location: Surrey, UK Posts: 3,063	CPU Voltage concern I've recently been taking a close look at CPU-Z after a few crashes during games. I've noticed that the core voltage has been fluctuating quite a lot either side of the bios setting, which is currenty at 6.6% above base, which I think works out at about 1.492. Here's a screenshot of the ballpark of highest and lowest settings in ~1min period, at 100% load. I'm pretty worried by this, although I have tended not to look at voltages since I got the new board in my sig, surely the voltage shouldn't be fluctuating quite this much, on a constant 100% load? Temps are alright, around 46-50 degrees on full load, but it's just this voltage thing. Am I looking at a faulty board, or underpowered psu, or what? __________________ FOLDING FOR THE GOOD OF MANKIND :F@H Team 44358

08-12-2006, 06:05 PM	#2 (permalink)
Jet Diamond Member Join Date: Oct 2005 Posts: 5,285	They shouldn't be fluctuating that much. __________________ Macbook/Intel Core Duo 1.83Ghz/2GB DDR2 667/60GB HD/OSX 10.4.11/160GB 3.5" Firewire External/160GB Maxtor One Touch 4 Mini External/

08-12-2006, 10:04 PM	#3 (permalink)
magicman Moderator - F@H Guru Join Date: Jan 2005 Location: Surrey, UK Posts: 3,063	That's what I thought, that's why I'm worried. I just know that damage is being done as I write this. This is the link to my psu & stats, and my board is in my sig. What does your gut tell you is the problem? I'm leaning towards the board myself, but I just really don't want it to be. A PSU is so easier to replace. __________________ FOLDING FOR THE GOOD OF MANKIND :F@H Team 44358

08-15-2006, 12:15 AM	#4 (permalink)
magicman Moderator - F@H Guru Join Date: Jan 2005 Location: Surrey, UK Posts: 3,063	Anybody else got some input to this problem? If it is a real problem, it sure isn't going away... __________________ FOLDING FOR THE GOOD OF MANKIND :F@H Team 44358

08-15-2006, 12:45 AM	#5 (permalink)
[-0MEGA-] Diamond Member Join Date: Nov 2004 Location: Concord, NH Age: 19 Posts: 25,267	Mine fluctuates from 1.376 to 1.456 within about 30 seconds under load, and at half load. I have mine at stock settings, but I havent seen any crashes yet. I dont think the crashes would be related to the voltage going up, since CPU's can take quite a jump in voltage and still work well, what may be the problem is that the voltage gets too low under load, and can't handle it. __________________ Pentium Dual-Core E2200 @ 3.3GHz Gigabyte P35-DS3L ATI HD 3870 GDDR4 @ (875/2272) 4GB (2x 2GB) DDR2-1000 500GB SATAII HD w/16MB SilverStone 750W +12V@60A 3DMark06: 11515

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