6800gt 12v amp?

[Nextman916]

I am thinking of purchasing a BFG 6800gt OC and i know it requires at least a 350watt psu i have a 480watt psu and its stable at 11.920v. I have heard you need at least 12v stable to run 6800gt's is this true? or will i be fine. I am probably also gonna overclock it probably to ultra speeds. My psu has only 15amps on the 12v rail.........

 

[mwmorph]

not good.
http://www.xbitlabs.com/articles/video/display/ati-vs-nv-power_3.html
as seen here,
http://www.xbitlabs.com/misc/picture/?s...ati-vs-nv-power/6800gt_table-b.gif&1=1
the 6800gt takes 3A by itself on the 12v rail and moves up to about 4A when oced. as for voltage, anywhere from 12+or- 5% or so will run it fine.
it should be amps you are concerned about. An a64 itself takes around 7Amps. your cd/dvd drives take 12v amps, hdd takes 12v amps.

get a heftier +12v power supply with at least 20A on the +12V rail.

edit: you mean you have 2 +12V rails with15A each right? otherwise your psu mush be a generic POS.

 

[BillyBobJoel71]

antec ones are great, my 12v rail is 11.966.

 

[Nextman916]

http://www.newegg.com/Product/Product.asp?item=N82E16817148002 -will this be enough? i think so right

 

[fstime]

11.920v.

Your fine.

 

[mwmorph]

Originally posted by: Nextman916
http://www.newegg.com/Product/Product.asp?item=N82E16817148002 -will this be enough? i think so right

sure but there are etter quality ps that aspire. xclio has a good modular 450w high quality for $53 or oso, but your aspire will do fine.

 

[Nextman916]

BouZouki wait u just said i was fine? so should i purchase a new psu or leave the old?

 

[fstime]

Depends, if your PSU is of quality.

11.92V is fine.

 

[mwmorph]

Originally posted by: BouZouki
Depends, if your PSU is of quality.

11.92V is fine.

he means your volt rails are fine. but youe amps is lacking.

 

[Nextman916]

ok thx

 

[thegimp03]

Where is it showing 11.92v? In the bios? If it says that in a software program like AsusProbe I'd be leery. Example, Asusprobe shows 11.73v on my 12v rail. Yet, it's a 420w OCZ psu rated at 30A, and the bios shows 12.xx, so I know I'm fine. 15A is a little low if you're planning on overclocking a 6800gt. If you start having problems, like crashes, or lacking performance in games then it's most definitely a power supply problem and I would upgrade then asap.