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need advice on my OC Voltages.. - Page 2

post #11 of 13
Rev C1 965p chipsets have a NB latency strap at 401mhz. This raises latency [ie- going from cas4->5] for the NB to allow, OC'ing farther. The only issue is that the reset is sooo drastic, that you have to raise the FSB to nearly 460mhz just to get back to the ~performance level you were at before, at 400mhz FSB. This generally sucks, as these chipsets are based to run on 800mhz RAM, so no divider options are available for anything other than a 1:1, once you pass 450mhz FSB.

Rev C2 965p chipsets, lock the 1066 strap for the NB and continue to scale as FSB rises. This gives similar FSB latency results to a P35 mobo..as the latency is the same from 333mhz and up. They also are known for running stable into the 550mhz FSB range, with good NB cooling..where as most all C1's top out just under 500mhz FSB.
post #12 of 13
Thread Starter 
Quote:
Originally Posted by CL3P20 View Post
Rev C1 965p chipsets have a NB latency strap at 401mhz. This raises latency [ie- going from cas4->5] for the NB to allow, OC'ing farther. The only issue is that the reset is sooo drastic, that you have to raise the FSB to nearly 460mhz just to get back to the ~performance level you were at before, at 400mhz FSB. This generally sucks, as these chipsets are based to run on 800mhz RAM, so no divider options are available for anything other than a 1:1, once you pass 450mhz FSB.

Rev C2 965p chipsets, lock the 1066 strap for the NB and continue to scale as FSB rises. This gives similar FSB latency results to a P35 mobo..as the latency is the same from 333mhz and up. They also are known for running stable into the 550mhz FSB range, with good NB cooling..where as most all C1's top out just under 500mhz FSB.
Ah, i see. so its just to do with the chipset.

I had no idea it worked like this. now it just complicates things further >.<

Is it possible to find out what revision a mobo's chipset is before purchasing?.

Thanks alot.
post #13 of 13
You might be able to contact a manufacturer direct...but other than that.. I know this much:

Asus Commando's- most all are C2
P5B-Dlx's- are C1
DFI Infinity Dark- C2

..basically most all mobo's released for the 965 lineup, are C1 rev. There are only a handful of C2's, such as yours. I use the DFI Infinity for client builds... love them to death! Great OC options and advanced CPU/RAM settings.
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