ram problem

Hi all,

I have an Abit SA7 Motherboard with a P4 2.4 Ghz processor and 512Mb
of 2700 333Mhz DDR ram (I'm running at 533Mhz)

It would appear that the correct DRAM ratio to set would be 4:5, i.e.
(133/4)*5= 166.25 *2 = 332.5 Mhz

forums seem to agree that that's the speed 2700 ram should be capable
of running at but I find when I run at this ratio my system is
unstable, I get reboots (when doing a Sandra burn test) and the
occasional file not found etc etc. however if I reduce the ratio to
1:1 it seems to behave itself !

Does anyone have any ideas? It'd be amazing to get my system running
at its full performance

cheers

"Brett Sinclair" wrote in message
om...
Hi all,

I have an Abit SA7 Motherboard with a P4 2.4 Ghz processor and 512Mb
of 2700 333Mhz DDR ram (I'm running at 533Mhz)

It would appear that the correct DRAM ratio to set would be 4:5, i.e.
(133/4)*5= 166.25 *2 = 332.5 Mhz

forums seem to agree that that's the speed 2700 ram should be capable
of running at but I find when I run at this ratio my system is
unstable, I get reboots (when doing a Sandra burn test) and the
occasional file not found etc etc. however if I reduce the ratio to
1:1 it seems to behave itself !

Does anyone have any ideas? It'd be amazing to get my system running
at its full performance

cheers

Up the RAM voltage a tenth of a volt.

Question from a non Intel literature person.

Why would you want to run the memory at a rate higher than the fsb?
Seems like all the memory traffic would be between the cpu and memory
and the clocks should be the same???

Thanks,
Forrest


On Fri, 09 Jul 2004 15:19:29 GMT, "Colon Terminus"
wrote:


"Brett Sinclair" wrote in message
. com...
Hi all,

I have an Abit SA7 Motherboard with a P4 2.4 Ghz processor and 512Mb
of 2700 333Mhz DDR ram (I'm running at 533Mhz)

It would appear that the correct DRAM ratio to set would be 4:5, i.e.
(133/4)*5= 166.25 *2 = 332.5 Mhz

forums seem to agree that that's the speed 2700 ram should be capable
of running at but I find when I run at this ratio my system is
unstable, I get reboots (when doing a Sandra burn test) and the
occasional file not found etc etc. however if I reduce the ratio to
1:1 it seems to behave itself !

Does anyone have any ideas? It'd be amazing to get my system running
at its full performance

cheers

Up the RAM voltage a tenth of a volt.