I read the the 2 power cables coming off the MSI 8800GT, only one needed to be plugged in. Is this correct or do both need a power plug inserted? What would the purpose of that extra power plug be?TurnipSPECS:VISTA Home Basic 580 WATT Sunbeam PowerCrucial Ballistix 4GB(2 x 2GB) 240-Pin DDR2 SDRAMASUS P5N-E SLI LGA 775 NVIDIA nForce 650i SLI ATX Intel Motherboard Intel Core 2 Duo E6550 Conroe 2.33GHz LGA 775 65W Dual-Core Processor Model BX80557E6550MSI nVidia NX8800GT 512 PCI-E 2.0SB LIVE 24250 GB WD SATA HD 120 GB WD IDE HD

Generally these cards come with a PCI-e power adapter. Older PS didn't have this kind of plug. The adapter allows a user to plug in 2 of the standard 4 pin molex connectors (EIDE harddrive power, etc) into the adapter. Then the adapter's PCIe plug attaches to the Vcard. If you have 2 free molex connectors, use both to provide power to the card. If not, give it a try with only one. It should be fine.

I have the exact card...this one right?http://www.newegg.com/Product/Product.aspx...N82E16814127329Anyway, yeah, if your mobo has a pcie 6 pin connector you only need to use that one.....If you didnt have a 6pin connector you could use the 4 pin molex types....

Yes, that is the card. So it doesn't matter if only one is plugged in then?TurnipSPECS:VISTA Home Basic 580 WATT Sunbeam PowerCrucial Ballistix 4GB(2 x 2GB) 240-Pin DDR2 SDRAMASUS P5N-E SLI LGA 775 NVIDIA nForce 650i SLI ATX Intel Motherboard Intel Core 2 Duo E6550 Conroe 2.33GHz LGA 775 65W Dual-Core Processor Model BX80557E6550MSI nVidia NX8800GT 512 PCI-E 2.0SB LIVE 24250 GB WD SATA HD 120 GB WD IDE HD

. . . If you have 2 free molex connectors, use both to provide power to the adapter. If not, give it a try with only one. It should be fine.