[deani1i9i9i3i]

Hey guys thinking about getting the 4870, my friend tried it on my system it runs great (his 4870).

However I have a PSU with 650W, two 12v [email protected] 16a, [email protected] 30a, [email protected], [email protected]
I only have one pci-e so would need two molex to one pci-e adapter!
Do you think this would power my sig rig with a 4870?
Cheers.

 

[shinji2k]

What PSU is it? Two 16A rails for a 650W sounds pretty fishy, I'd guess it's not a very good PSU. If you had a good PSU, 30A on the 12V is the minimum I like to see with a dual core and a 4870, and 35A would be better. But I doubt your PSU will be up to the task.

 

[deani1i9i9i3i]

Quote:

Originally Posted by shinji2k What PSU is it? Two 16A rails for a 650W sounds pretty fishy, I'd guess it's not a very good PSU. If you had a good PSU, 30A on the 12V is the minimum I like to see with a dual core and a 4870, and 35A would be better. But I doubt your PSU will be up to the task.

Yeah it's only an Atrix one.
BTW The OCZ has 4x 18a on 12v not 30a minimum & that's not a bad one lol.

 

[zhevra]

I beleive the card eats up 220 watts with a recommend PSU of 450, But having more info on the PSU in question will help : )

 

[shinji2k]

Quote:

Originally Posted by deani1i9i9i3i Yeah it's only an Atrix one. BTW The OCZ has 4x 18a on 12v not 30a minimum & that's not a bad one lol.

30A minimum would be the combined 12V rating. And which OCZ are you referencing? The 600W SXS and GXS are rated for 44A combined on the 12V, so yes they would be suitable. So would the 500W SXS with 34A on the 12V.

Quote:

Originally Posted by zhevra I beleive the card eats up 220 watts with a recommend PSU of 450, But having more info on the PSU in question will help : )

The 4870 will draw ~130W while gaming.

 

[zhevra]

Mm my bad, just what i thought it drew : D

 

[shinji2k]

Oh and that "650W" Atrix is probably only good for ~300W. I couldn't find the manufacturer, but it is an extremely dated design.