"John" wrote in message
...
My set up is this
O/S Vista 32 sp1 all hot fixes
CPU AMD 6000+ 3.0
M/B ASUS Crosshair
Ram Corsair xm2 DDR2 800 4 gigs (4 sticks 1 gig each )
PSU Corsair 620HX
Cards 2 same Foxconn o/c 8800GTX in SLI
Drives 2 Seagate Barracudas in raid 0
Optical 2 dvd writers
Fans 6 case fans running 100%
Display 24" V7
Drivers are all up to date. SLI enabled in ntune.
Bios is up to date on M/B

Ok question is this.:

I have each card hooked up to the PSU with it's own cord. No other items
draw power off of them. I was wondering is this PSU is enough to power
them. I have played COD4 max setting 1920 x 1200 and get 70-91 average in
multiplayer with about 24 players total( these fps are in game not fraps).
I do see drops to 50 when moving around from time to time. I played for
about a hour and I haven't had any restarts or glitches. I was told that
my FPS should stay in the 91. I was told my PSU can run them but not
correctly. Can any one give some feed back if my system could run these
cards good. I just installed the second card last week. Crysis FPS is
about 35 with settings 1920 x 1200 2x anti and Gamer settings.

620W should be fine if that is indeed the actual wattage of the PSU. Many
PSU manufacturers rate their PSUs by maximum start-up wattage and not actual
running wattage. I have 2 EVGA 768mb DDR3 8800 GTX Superclocked cards in SLI
and use a PC Power and Cooling Silencer 750W SLI PSU that has a startup
capacity of about 850W and 12v rail of 65a. This PSU has the 4 dedicated 12v
connectors for the 2 video cards and I don't have to use any of the
converter cables and it is completely silent. I don't see anything in your
information that would make me think you have any problems. It is a good
idea to uninstall and reinstall the latest drivers after adding the new card
and then activating SLI in the Nvidia control panel. (a restart is required
to completely activate SLI) Weak 12v rails are the main issue with the 8800s
in SLI.


Ed