Divider problems Sli dr and opty

[Andy_A]

Hi, perhaps someone can help?

 

I've overclocked my cpu to 280 fsb (1.5v) with the divider set to 1/02 to take it out of the equation. Passed SuperPi and OCCt as per A-G's Overclocking post.

 

(It does 260 on 1:1 everything on auto; stock everything...)

 

Great, thinks I, now to sort the ram out. But wait. Windows won't boot at anything over the 120 divider (3:05) setting! The next one up is 133 (2:03), which is only 186Mhz on the ram which is rated for 250Mhz!

 

So the question is.... Is there anything else that needs to be set in the bios to enable the dividers to run properly?

 

Your help would be much appreciated.... beg...grovel....prostate (!).

[THunDA]

If you lower your cpu multi to 7, put the mem divider on 1:1 and put your LDT multi @ 3x can you run the mem @ 250 stable (or around 250) ?

[Andy_A]

Thanks for your reply.

 

I've done as you suggested, and it's running fine, CPU at 1750Mhz, and ram at 250Mhz.

 

But the ram oc's happily at 260Mhz 1:1 anyway.

 

Suggestions?

[THunDA]

It could be a weak memory controller.. or the dividers might not work right because Opteron's arent supported by DFI.. not sure which it could be though..

 

Only thing I can suggest is to play with the timings.. loosen some up and see if it takes some of the stress off of the cpu..

[Andy_A]

Thanks for taking the time to reply ThunDA.

 

I'm busy on the OCZ forum now. Something about some dividers not working....