My Psu need replacing??

[MadSkiLLz]

Ok guys been running this random 900w psu for about 2 years now and been ok but i never trusted it..so got my pc back after 5months parking at my grans house collecting dust and decided to tinker a bit with it and went into my bios and checked the voltages and it is as follows:
+3.3v = 3.152v
+5v = 4.75v
+12v = 11.79V

Now i would like to know is that ok? because 3.152v and its suppose to be 3.3v sounds like my mobo is not getting all the voltage it needs?
Should i replace my psu? and if so recommend a psu for around the R700 mark as that is all I have to spend (modular if possible)

 

[Oj0]

Measure voltages with a DMM, not the BIOS...

 

[MadSkiLLz]

Measure voltages with a DMM, not the BIOS...

?? Is that a fancy word for a multi-tester? or is that one of those psu testing things?

 

[Sharkie]

Think he just meant a Digital Multi Meter... the values you reported seem to be a bit off but it could be due to the sensors on the mobo which can vary their readings.

No idea of the brand of PSU or it's ratings?

 

[MadSkiLLz]

well what happend was is i sprayd the psu black but it was a 900w psu i think pe technologies i think its like 3d technologies or something like that...thats the brand..but im not sure ..it was only R400 for it brand new ..and i needed a psu in a rush but how do a test a psu with a multimeter if the psu has to be plugged in to work??

 

[Vip3r011]

bridge out green & black wire next to it switch on psu...take psu out off system tho

 

[MadSkiLLz]

haha..i know about that..but so bang to do things like that..

 

[Oj0]

That's a completely redundant reading. Most PSUs state their minimum required load on each rail, below that they can't give the required voltage. My Quadro 850w gives 8.8v on the 12v rail by bridging the green and black, as soon as a few fans are connected it jumps to 12.03v or so.

While the system is on (for God's sake don't drop one of the probes and short something), stick the black probe into the hole on a molex connector coming from the PSU. It should be a tight enough fit for it to hold itself in place. Stick the red probe into the hold for the red wire for 5v and yellow for 12v. For 3.3v, push the point of the red probe into the 24 pin ATX connector till it makes contact with the metal of any orange wire.