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Is my PSU giving enough volts on the +5V rail?

  • Power Supplies
  • Components
Last response: in Components
December 23, 2008 11:57:40 PM

More about : psu giving volts rail

December 24, 2008 12:36:08 AM

They are all almost out of spec... check in the bios
December 24, 2008 8:25:31 AM

I would be worried about the +12v spec... Should be within 5% - 11.15v is too low...
a b ) Power supply
December 24, 2008 7:41:21 PM

Your 5V is way below spec. For 5V min voltage for TTL lodgic is 4.75 V.
As jamesgoddard said your +12 V is ay low also. And Your system is at idle, Under load they will drop more. Hopefully the software is not providing a correct reading - Doubt computer would boot with 5 V at 3.7 volts. As chookman said, check in bios. Might also try different software.
Also check voltages under loaded conditions (ie run a 3D app like ati tools - view 3d, or that furball benchmark program.
Even better get a cheap DVM and measure the red and yellow -> black at one of the molex connectors