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PSU voltage variance

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?
5 answers Last reply Best Answer
More about voltage variance
  1. If the 12v rail was that low you wouldn't be able to read any software, the system wouldn't start
  2. 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.
  3. Best answer
    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
  4. 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
  5. Best answer selected by JHM159.
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