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Power Supply Compatibility

S

salmanzk

Junior Member
🙂I have Enermax 600W SLI power supply.

http://www.enermax.com/english/product_Display1.asp?PrID=24

I want to know that does this powersupply will work fine if these components are used.

The components detail is two (MSI) Geforce 8800GTX Graphic cards, (BFG tech) nForce680i motherboard, (Intel) X6800 core2Duo Processor, (Corsair) Dominator TWIN2X2048-6400C4D* memory, (westerndigital) Raptor X Hard disk, (Creative) Xi-Fi Fatality1 sound card and DVD writer and Combo drive.


Also findings of my friend,

"Ok I just looked at your PSU and it says its got only 18A running through the 12V1 (meaning its only got 18 Amps maximum current running through the 12V) . A 7900GTX requires a minimum of 24A so your already abit off. And aparently the 8800GTX needs a minimum of 40A-50A "

He suggested me to buy Corsair 620W powersupply.

Is Corsair powersupply is better then mine Enermax Coolergiant 600W?

kindly tell me in detail.


http://www.corsair.com/corsair/HX_power_supply.htm
 
Although I think the SLI requirements are grossly over-rated, I don't think your Enermax stands a chance with two 8800GTX's.

First off: Each 8800GTX requires two PCI-e connectors. Your Enermax only has two total.

Second: Your Enermax only has 35A on the 12V rails. That's not much, even for a 600W PSU! The BFG box recommends a PSU with at least 30A on the 12V rail if you're going to use just ONE 8800GTX.... never mind two. You only have 5A more than that!
 
The 8800GTXs draw in the region of 200W a piece from the 12V rail, that's 400W or 34A or so (calculator is missing so it's a rough number).

They don't need to have 4 rails, but each of the GPU rails will have to be capable of supplying 18A or so. The reason for the 2 PCIe power connectors is the intel 240VA specification (which is being ignored by many of the best brands anyway).

In other news, It looks like a waste of money build to me. Raptor X? Unless you've got the one or two cases that'll show it off you might as well get a 150 instead. High end overclocking RAM and a 6800? A very bad choice. A Combo drive, why on earth would you waste your time with one of them?
 
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