500 watt enough for 8800gts?

[Masterbobo]

i have a thermaltake 500 watt powersuply with 1 dedicated pci e graphix power suply. Also ir running a nic card, and a sound card, with 2 hard drives.
Can my 500 watt thermaltake hold all this (also my 3800+ 64bit) and a 8800GTS??
I dont want to buy the 8800 GTS to find out im short on power, how can i tell, is 500 enough?

 

[doolittle]

i have a thermaltake 500 watt powersuply with 1 dedicated pci e graphix power suply.

So you have a 500w unit (either the w0142, w0100, w0120, w0057, w0136, w0093/w0094) as well as a dedicated GPU PSU (either the w0099 or w0130)?

If so then yes the GPU PSU is a dedicated "3rd rail" directly to the GPU and you will have no issue.

If not, then some of those models will have no problem and the rest may have an issue keeping up with the GPU power because of the +12v1 rating.

 

[tsf]

all u need is a PSU with combined 12V current rating of 28A or more.
(thats like using core 2 X6800)

and the rest may have an issue keeping up with the GPU power because of the +12v1 rating.

but it looks like they can all make it through.
doolittle:which ones did u mean? wats the min 12V1 current needed? i'm gettin similar settings like masterbobo, with e6420.

 

[doolittle]

I have to agree w/ mpilch on this, when I calc'd the min +12v1 (1xhdd/1xdvd/2xfan/8800gts 320) I came up w/ 13A~14A so if the unit has per-rail OCP (over-current protection) then it may trip and shut down the unit.

If not then a lower power CPU like the c2d may help since there is more crossloading available between the +12v combined and it will work no problem.

There are other factors, since no hdd's are equal it may be that you have eco-friendly units which may allow it to work or if you have raptors you may have an issue. Tough call w/o knowing the exact specs we are just taking pot shots here

 

[shooter124]

how aboutL 500w antec neo he

with over clocked c2d 6420, 2 sata hds, 2 sata burners, ds3, can I run a 8800gts with the antec?

 

[tsf]

thnx for the info. i think i will buy a pure/toughpower. but i'll get a 550W one to be safe.