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What PSU should i use.

Last response: in Components
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August 4, 2010 2:29:31 AM

Hey guys and girls.

PSU Question.

Running
MotherB. Asus P5PL2-E
Petium D 3.2ghz.
2Gb of Ram
GTS 250
XP pro 32 bit

Was usung a Atlas(sup brand of ASUS i think) 450watt PSU
12vrail-14a12rail-16a=360watts
(has no 6pin for GTS 250 use 2 four pin to 6pin)

When i installed my GTS 250 last week.
PC probe II had my 12v sitting at 12.30 and jumping from 12.30 to 12.14 underload

Brought a SHAW(yes crap i know) 860watt PSU
12vrail-17a12vrail-19a=432watts
(Has 6pin) O.o hell it has two 6pins and one 6+2 pin..not that i would ever think about using anymore then one

Installed it today
PC Probe II has 12v sitting at 12.41v at rest and from what i can tell jumping from 12.30v to 12.14v underload.
Now the SHAW i have seen underload and HD full use can drop to 11.94 very shotly(underload of a program ive never see it drop below 12.14v only when load such program up,at any case its very rare to see)
I never seen the Atlas drop to 11.94 at any stage(but it very well may have)

I Brought the SHAW as i read GTS 250 users 25amps and to save 4-5 for my system witch the Atlas only just did.but if all is the truth of the side of PSU the SHAW should be better,is a drop to 11.94v on the 12 rails going to fry things?
What one should i be using?
(should i uninstall SHAW and Frag my bin?)

Yes i know you get what you pay for.
But my system cost me $400(200 for mobo and chip-150 for card-30 for PSU)
i dont want to buy a $200PSU


Thanks heaps guys and girls





More about : psu

August 4, 2010 3:24:52 AM

hey Shovenose.

Really just wanting to know if 12.41v-11.94v is to much of a jump(think the right word is ripple)
I have no idea what ranges thay should run in and cant really find anything to show me.
PC Probe II has option to sound warning if there is a 5% drop or rise(not that i know if its working) and it never sounds

and the Psu you linked barely has the votls on 12vrail i need
+3.3V@20A, +5V@20A, +12V1@17A, +12V2@15A, -12V@0.8A, +5VSB@2.5A
Related resources
a b ) Power supply
August 5, 2010 1:51:15 AM

i would say that 11.8-12.2 is ok. but thats after years of powering all my computers with raidmaxes and logisys :lol: 
12.4 does seems a bit high though
!