From my experience overclocking two NF7-S rev 2.0, which has the best FSB potential, but some are very sensitive and require all kinds of trick to get it to work at high FSB.
- One failed mysteriously at multiplier 9, 9.5. 10 (hang, crash), could only do 215 MHz FSB. But with the right bios (version 10 only which is not recommended due to bios corruption), FSB_sense 166 mod, CPU interface enable, it can do 230 FSB with memory efficiency at around 95%.
- Another one can do 225 MHz without any trick and mod and bios change. But nothing can help it to go higher (limited by memroy controller in NB). Even with this one, there are problems with multiplier <= 10, memory efficiency suffers by 5-7%.
I only need mulitplier 11 or 11.5, since my CPU's can run 225 x 11 or 225 x 11.5, so multiplier 10 is not a problem for me.
Even you think your bios can handle multiplier 10 or under, I think better check the memory efficiency. It should be around 95% for this motherboard w/ CPU interface enable. If you get memory efficiency of only 89%, it is equivalent to losing 12-15 MHz FSB.
For details about the testing, effect of various bios version, bios setting, FSB_sense mod, memory efficiency, ...., click this link:
Summary on overclocking the NF7-S rev 2.0 (with Tbred B 1700+ DLT3C and ...) (page 15)
