enough power? hopefully

my system intel e 8500

evga 780i sli mother board

9800gtx+ 1gb

500gb hard drive

3gb ddr2 6400 ram

i have enother 9800gtx+ at my house and im wondering if my power supply can run them sli.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817702012

it meets requirnments but its close

You should be able to, but I really don't trust multiple rail power supplies.

One problem that you may face is not being able to supply the maximum number of Amps to both cards if the rails aren't setup accordingly.

Two 9800 GTX+ draw a max of 282w(23.5 Amps). You should be able to get away with that power supply, but don't expect to last more then 2 or 3 years more likely. Also don't expect you to give you any good upgrade room.

If your getting it now, get this power supply instead.

Corsair 750TX - Discounted $60, Free S&H, $20 MIR, $119.99 before MIR.

Get it while you can at this price, this PSU will be perfect even for GTX 280 SLI.

You should be able to, but I really don't trust multiple rail power supplies.

One problem that you may face is not being able to supply the maximum number of Amps to both cards if the rails aren't setup accordingly.

Two 9800 GTX+ draw a max of 282w(23.5 Amps). You should be able to get away with that power supply, but don't expect to last more then 2 or 3 years more likely. Also don't expect you to give you any good upgrade room.

If your getting it now, get this power supply instead.

Corsair 750TX - Discounted $60, Free S&H, $20 MIR, $119.99 before MIR.

Get it while you can at this price, this PSU will be perfect even for GTX 280 SLI.

kilerchese

Yeah, he's right.

You should be able to, but I really don't trust multiple rail power supplies.kilerchese

Why exactly do you not trust multi-rail PSU. They are just fine, and actually have some advantages over single rail PSU's.

Here is a good read on single vs multi-rail ( http://www.jonnyguru.com/forums/showthread.php?t=3990 ) that shows that a mountain has been made out of a mole hill, are there advantages and disadvantages of both, yes, but as long as you get a quality unit, multi-rail will be just as good as a single rail unit.

Main problem I see with multi-rail PSUs, is that it can sometimes be hard to determine which connections are on which rail because not all manufacturers publish this information.

With that in mind, when using multi-gpu systems a problem that you can face is having all your PCI-E connectors stuck on one 12v rail forcing you to use 4-pin molex to 6-pin PCI-E to get the rest of your power from the other rails.