Hi there - I have a 6990 and a 5970 running on a asrock extreme4 - i have 1000W power
- 900W reserved for PCIe. I don't have a power problem - but a cooling problem - i had
to use two PCIe slots (for 2 dual cards - double size) "next to each other" - and there is
not even 1 cm space between the cards. it was not possible for me to use the 5970 in
the possible "third" (4x) PCIe slot (card did not work - or was dead slow)...
I tought like the 6990 running at 880mhz cosumes about 400W (?) in the "normal"
830 mode is should be less than 350W. I am not sure about the 5990 maybe also
350W max.
It of course also depends on other hardware like harddisk and cdrom drives uses
your power...
Good luck
- 900W reserved for PCIe. I don't have a power problem - but a cooling problem - i had
to use two PCIe slots (for 2 dual cards - double size) "next to each other" - and there is
not even 1 cm space between the cards. it was not possible for me to use the 5970 in
the possible "third" (4x) PCIe slot (card did not work - or was dead slow)...
I tought like the 6990 running at 880mhz cosumes about 400W (?) in the "normal"
830 mode is should be less than 350W. I am not sure about the 5990 maybe also
350W max.
It of course also depends on other hardware like harddisk and cdrom drives uses
your power...
Good luck