The result is nice, but not overwhelming: We reached FSB1550 on standard air cooling and slightly increased component voltages. Nvidia doesn't rate the 650i SLI chipset as an enthusiast part, which means that its not intended to overclock like hell anyway.
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FSB OC
1100
1150
1200
1250
1300
Nvidia nForce 680i SLI
x
x
x
x
x
Intel 975X
x
x
x
x
x
Intel 965P
x
x
x
x
x
AMD Crossfire Xpress 3200
x
x
x
x
x
Nvidia nForce 650i SLI
x
x
x
x
x
Row 5 - Cell 0
1350
1400
1450
1500
1550
Nvidia nForce 680i SLI
x
x
x
x
x
Intel 975X
x
x
x
x
x
Intel 965P
x
x
x
x
x
AMD Crossfire Xpress 3200
x
x
x
x
x
Nvidia nForce 650i SLI
x
x
x
x
x
Row 11 - Cell 0
1600
1650
1700
1750
1800
Nvidia nForce 680i SLI
x
x
x
x
x
Intel 975X
x
Row 13 - Cell 2
Row 13 - Cell 3
Row 13 - Cell 4
Row 13 - Cell 5
Intel 965P
x
x
x
x
x
AMD Crossfire Xpress 3200
x
x
x
x
x
Nvidia nForce 650i SLI
Row 16 - Cell 1
Row 16 - Cell 2
Row 16 - Cell 3
Row 16 - Cell 4
Row 16 - Cell 5
Row 17 - Cell 0
1850
1900
1950
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Row 17 - Cell 5
Nvidia nForce 680i SLI
x
Row 18 - Cell 2
Row 18 - Cell 3
Row 18 - Cell 4
Row 18 - Cell 5
Intel 975X
Row 19 - Cell 1
Row 19 - Cell 2
Row 19 - Cell 3
Row 19 - Cell 4
Row 19 - Cell 5
Intel 965P
x
x
x
Row 20 - Cell 4
Row 20 - Cell 5
AMD Crossfire Xpress 3200
x
x
Row 21 - Cell 3
Row 21 - Cell 4
Row 21 - Cell 5
Nvidia nForce 650i SLI
Row 22 - Cell 1
Row 22 - Cell 2
Row 22 - Cell 3
Row 22 - Cell 4
Row 22 - Cell 5
RAID Array Creation
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