Voltage Readings - Disturbing :(

jancz3rt

<b>VIP Member</b>

• Dec 11, 2005

• #1

Hey guys, do you think my PC would still function if these readings were true? Check out the 12V and 5V especially!!! I am definitely getting a new PSU for Xmas, but this kinda got me....the +5V goes all the way down to 3.5 sometimes

JAN

 

Last edited: Dec 11, 2005

Hairy_Lee

VIP Member

• Dec 11, 2005

• #2

thats quite worrying, if these readings were true i very much doubt that your system would still be running

 

Geoff

VIP Member

• Dec 11, 2005

• #3

Well my old PSU went down pretty far, not as much as his, but were still pretty low. I'd deffinetly get a new PSU, i did and my voltages are much more stable now.

 

34erd

New Member

• Dec 11, 2005

• #4

I wouldnt trust any windows aplications. My +12 volt rail is 11.7 volts in windows, but 11.96 in the BIOS.

 

Prof Pwnsworth

New Member

• Dec 11, 2005

• #5

i dont really trust speedfan, it tells me that ime running 2.5V on 3.3v, which is bs.

 

diduknowthat

formerly liuliuboy

• Dec 11, 2005

• #6

i dont trust any built in readers...speedfan reads mine at 11.7v, everest reads it at 12.9v. I need a multimeter =\

edit: btw..what do you have running at a toasty 70C?

 

jancz3rt

<b>VIP Member</b>

• Dec 11, 2005

• #7

Lol

The toasty 70C is my chipset (Nforce 4 Ultra) with passive cooling. Supposedly, 70C is normal.

JAN

 

O

opera936

New Member

• Dec 12, 2005

• #8

my don't even know what the +3.3v or +12v are, but mines in the bios are vcore 1.394~1.410, +3.3v 3.232~3.248, +12 11.351~11.287. they are jumping between these numbers, is this good for teh computer?

 

D

Dngrsone

VIP Member

• Dec 12, 2005

• #9

Software voltage monitors are notoriously inaccurate. If you are concerned about your voltages, then get yourself a cheap digital multimeter and read the voltages directly.

Your +5v, +12v and +3.3vdc readings should all fall within 5% of the nominal. The vcore will differ depending on your processor, and the -5v and -12vdc have a 10% tolerance, though many motherboards no longer use those voltage outputs. Keep in mind that newer systems and power supplies will have more than one 12v or 5v power source (also known as a rail), so you might want to check each connector.

 

jancz3rt

<b>VIP Member</b>

• Dec 17, 2005

• #10

Heya

Oh well, I got a new PSU (Chill Innovation CP-400P2 ATX 2.2 - 400W). It has two 12V rails with 15A on one and 16A on the other. That's twice as much as my old PSU had, but according to speedfan etc, the voltage readings are basically the same. Now I know that that's not possible and therefore would like to ask anyone about a good program to measure it. My BIOS does not show the readings....just says OK.

UPDATE: Tried through Everest

+12V - 12.10V
+3.3V - 3.31V
Vcore - 1.55

Perfect readings and only the 3.31 fluctuated by 0.01 ...so I will trust Everest


JAN

 

Last edited: Dec 17, 2005