Minimum of a 450 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 24 Amps.)
Minimum 550 Watt for SLI mode system.
(Minimum recommended power supply with +12 Volt current rating of 30 Amps.) "
Is my power supply good enough to handle these two 9800's in SLI or would I need to upgrade my power supply too?
@ Belial69699: Unless the PSU is badly overrated, it'll handle those cards with ease, it even has enough 6-pin connectors.
A few off topic: What resoloution do you play in and what settings do you want/need to use?
What CPU/RAM do you have? Without a fairly potent processor you'll not see the best from such a combination.
My current rig:
ASUS M2N-SLI nForce 560
AMD Athlon 64 X2 5000+ Black Edition
Zalman CNPS 7500B AlCu LED 110mm 2 ball CPU Cooler
PowerUp GEN-6803 800-Watt Power Supply
2 EVGA 8600 GTS Superclocked in SLI
OCZ SLI-Ready Edition Dual Channel PC6400 DDR2 800MHz Memory (4gigs)
Seagate Barracuda 7200RPM 500GB SATA Hard Drive
Sound Blaster Audigy SE 7.1
Thermaltake Soprano RS101 Black Mid-Tower ATX Case
Thermaltake Thunderblade 120mm LED Fan (Blue) (4)
Windows XP SP 3 32 bit
Logitech Mx518 Gaming Mouse
Microsoft Natural Ergonomic Keyboard 4000
LG W2253TQ-PF Black 21.5" 2ms(GTG) Full HD 1080P Widescreen LCD Monitor w/ HDCP Support
Normally run WoW at 1280 x 960 in windowed mode atm. Haven't really adjust the screen resolution too much. Might go higher yet.
I would suggest an alternative: Get a single GTX275 instead, it will be cheaper than dual 9800s', easier to manage, and have more video memory, something you will find very handy when you start to exploit that 1920x1080 monitor properly.
This one has good reports, not too pricy either.