EVGA nForce 122-CK-NF68-XX User Manual page 156

Installing and Configuring the EVGA nForce 680i SLI Motherboard
While NVIDIA recommends an SLI-Ready power supply, the following table
provides some general power supply recommendations based on testing
performed in the NVIDIA SLI validation lab.
Table 6. Recommended Power Supplies
SLI System Type
High-End: EVGA GeForce 8800 GTX
Mid-Range: EVGA GeForce 7950 GT
Entry-Level: EVGA GeForce 7600 GT
If the power supply specifies two 12V windings (i.e. 12V1 and 12V2), add these
numbers together to check against the specifications described above.
For systems with the 8800 GTX or 8800 GT, please make sure the power
supply also contains PCI Express auxiliary power supply connectors. If your
power supply does not have a PCI Express auxiliary connector (6-pin
connector), please contact your graphics board partner for an HDD-to-PCI
Express power adaptor.
The NVIDIA SLI power supply recommendations are based on the following
test configurations:
High-End NVIDIA SLI Configuration:
Dual EVGA GeForce 8800 GTX Graphics cards
Intel Core 2 Quad EE 775-pin CPU
Two or more HDD, including RAID 0,1, 0+1 or 5 configurations
Two optical drives
PCI sound card
Mid-Range NVIDIA SLI Configuration:
Dual EVGA 7950 GT Graphics cards
Intel Core 2 Duo
Single HDD
Two optical drives
PCI sound card
Entry-Level NVIDIA SLI configuration:
Minimum Recommended PCI Express
Power Supply
750W and up, +12V @ 40A
500W–550W, +12V @ 30A
350W–420W, +12V @ 20A
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