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EVGA 9800GTX+ Power Supply question

Last response: in Graphics & Displays
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July 11, 2009 1:05:47 AM

I've been wanting to upgrade my vid cards from my current EVGA 8600 GTS Superclocks in SLI to newer cards. I finally found what I wanted. Here is the link for the video cards I intend to buy:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


My question is about my power supply. My current power supply is this:

http://www.tigerdirect.com/applications/searchtools/ite...


Now the 9800GTX+'s System Requirements say:

"Requirements
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?

Thanks in advance for any input!
July 11, 2009 7:41:59 AM

Yep your Power supply is more than enough!, you have 2 rails, 28 amps each. if you need 24 amps for a single card, there's no question that 2 rails of 28 amp can handle 2 cards.
July 11, 2009 8:10:45 AM

As long as your PS can deliver what it says..NP
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July 11, 2009 9:21:21 AM

you would be better off with the 4870 if its cheaper or the 4850
July 11, 2009 4:44:50 PM

dude... i cant belive you just asked if that beast of a PSU is enough for a 9800GTX!!
your gonna be more than enough fine. you could run QUADsli with that thing....

i can run 2 3870s OCed on a cheapo 530W PSU with 17A on my 2 12V rails ;) 
a c 165 U Graphics card
a b ) Power supply
July 11, 2009 4:51:18 PM

@ 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.
a b U Graphics card
a b ) Power supply
July 11, 2009 4:53:26 PM

rambo117 said:
dude... i cant belive you just asked if that beast of a PSU is enough for a 9800GTX!!
your gonna be more than enough fine. you could run QUADsli with that thing....

i can run 2 3870s OCed on a cheapo 530W PSU with 17A on my 2 12V rails ;) 


17amps total?
How???

My PSU has 18amps on a 12v rail, and people did not recommend anything over a 4670.
17amps will barely run a single 3870...how did you get two running? O_o XD
July 11, 2009 5:11:01 PM

no no no, not on a SINGLE rail. i have two 12V rails. both with 17A.
its been runnin stable for a year and recently just threw in a phenom II x3 720 OCed to 3.4GHZ

i do think it is time to upgrade the power supply though :p 
July 11, 2009 10:45:03 PM

coozie7 said:
@ 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.
July 11, 2009 10:47:38 PM

rangers said:
you would be better off with the 4870 if its cheaper or the 4850


True, I have to admit I like ATI vid cards but if I went ATI I dont think my current mobo can do Crossfire.
July 12, 2009 5:34:13 AM

Although that psu looks like a total p.o.s.,if it can provide anywhere close to the amps its says it can you'll have loads of power.Assuming it doesn't blow up on you.
a c 165 U Graphics card
a b ) Power supply
July 12, 2009 11:23:09 AM

Ah. Right.
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.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
!