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PSU voltage variance

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January 24, 2013 10:08:58 PM

My 300w psu is showing +2.67 on the 12v rail on monitor software. See below

Power=xxxx rpm
Core=+x.xxV
Aux=+x.xxV
+3.3V=+x.xxV
+5V=+x.xxV
+12V=+2.54V
-12V=-xx.xxV
-5V=-x.xxV
Can someone tellme if this would be causing my GPU to overheat and shut down my PC?

More about : psu voltage variance

a c 243 ) Power supply
January 24, 2013 10:50:59 PM

If the 12v rail was that low you wouldn't be able to read any software, the system wouldn't start
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January 24, 2013 11:01:25 PM

delluser1 said:
If the 12v rail was that low you wouldn't be able to read any software, the system wouldn't start



What does the +2.54v mean? Isn't that the 12v? Is the monitor software bad? I had pulled the original PSU out because it was reading 3.66 and causing the same problem of shutting down my system.
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a c 243 ) Power supply
January 24, 2013 11:06:14 PM

JHM159 said:
What does the +2.54v mean? Isn't that the 12v? Is the monitor software bad? I had pulled the original PSU out because it was reading 3.66 and causing the same problem of shutting down my system.

That would be my guess, can't imagine the system running at either of those numbers
Need a digital multimeter to check for real
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January 25, 2013 12:10:49 AM

delluser1 said:
That would be my guess, can't imagine the system running at either of those numbers
Need a digital multimeter to check for real



Tks, delluser1. I'm in way over my head, just thought I might be able to salvage this unit by R/R instead of paying someone $70 to diagnois the problem and then more $$ to fix it. This unit is not worth $200 if everthing worked, let alone if the graphics card needs to be relaced. Still can't figure why the GPU is overheating. It is about 2 yrs old. Tks again John
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February 4, 2013 12:20:55 AM

Best answer selected by JHM159.
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