PSU failing ?

[KIGG Artz]

Hey all,

My friends PC is acting up lately, randomly shutting down when playing high end games or without, and i was wondering if the PSU was failing, since it makes a high pitch noice.

i found out tht the voltages need to be something like this:

Here are the ATX specs:
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

almost all the values are correct except for the +12, its making me think this psu is failing.

i used HWMonitor to check the values:

+12 values:

min: 4.224
max: 4.224

he got a Corsair CX750m.

I hope any of you guys can help me out.

 

[GhislainG]

You should check voltages in the BIOS or use a DVM (best way to check them).

 

[KIGG Artz]

You should check voltages in the BIOS or use a DVM (best way to check them).

But i checked the values already, and there are 4.224 while they should ne around 12 ish

 

[GhislainG]

You used HWMonitor which is useless; at 4.2V, the system wouldn't even power up. The PSU may be failing, but you sure can't figure that out with HWMonitor that can't obviously can't read the motherboard sensors properly.

 

[KIGG Artz]

You used HWMonitor which is useless; at 4.2V, the system wouldn't even power up. The PSU may be failing, but you sure can't figure that out with HWMonitor that can't obviously can't read the motherboard sensors properly.

alright, when i get home ill check his pc again through the BIOS