PSU diagnosis confirmation

Hey, recently been looking into why my computer has been shutting down unexpectedly, no bsod, and fails to boot after.
Looked into hardware monitor and saw my voltage was exceedingly low on my -12v side.



Referring to said chart :

Supply [V] Tolerance Range (min. to max.) Ripple (p. to p. max.)
+5 VDC ±5% (±0.25 V) +4.75 V to +5.25 V 50 mV
−5 VDC ±10% (±0.50 V) –4.50 V to –5.50 V 50 mV
+12 VDC ±5% (±0.60 V) +11.40 V to +12.60 V 120 mV
−12 VDC ±10% (±1.2 V) –10.8 V to –13.2 V 120 mV
+3.3 VDC ±5% (±0.165 V) +3.135 V to +3.465 V 50 mV
+5 VSB ±5% (±0.25 V) +4.75 V to +5.25 V 50 mV

Seems like that is the problem, but I'm just making sure, because, seems too easy...
6 answers Last reply
More about diagnosis confirmation
  1. Check the voltages in the bios an report back !
  2. Also tell us your psu specs - make & model.
    -Bruce
  3. PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E16817152028
    bought over 3 years ago





    Not sure what voltage info you wanted, so thats what i got
  4. Crappy PSU. Tier 5. Try using another one to test
  5. Figured, o swell. Just bought this bish http://www.newegg.com/Product/Product.aspx?Item=N82E16817182131

    new build soon anyways, might as well get on it lol
  6. Why the ****. Ask next time before buying. Xfx 550 W Pro core is better and cheaper 54$ @ncix !
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