MoMoDic Posted April 7, 2006 Posted April 7, 2006 Hi, here is the spec of my computer AMD 4200+ FDI Lanparty Ultra-D (24/11/05 bios) 2x512 OCZ dual channel performance PC3200 RAM Gainward Goes like hell 7800 GT 300 sata maxtor drive audigy sound card hiper 580w type-r psu When I oc to 2600mhz dual prime won't hit 100% cpu usage. Anyone know why? it's always on about 53% when I check with ctrl+alt+del. I am at the first part of my OC process. I follow the OC guide here and is on the part to test the max CPU speed. superpi and occt and all 3dmark passed. prime runs too, but i don't know why it isn't using all the cpu resource. I am running dual prime in 2 diffrent folders. Please help.... Share this post Link to post Share on other sites More sharing options...
twivel Posted April 7, 2006 Posted April 7, 2006 Check your custom torture-test options. You might be allocating too much memory, causing it to spend more time paging than on CPU. There is a link at the bottom of the OC guide that tells you how to setup dual prime95. Make sure that the mem amount you use is less than 50% of physical memory for each core. You might also have affinity set wrong. Share this post Link to post Share on other sites More sharing options...
Kakarot Posted April 7, 2006 Posted April 7, 2006 hmmm i use 800 megs each core... Share this post Link to post Share on other sites More sharing options...
red930 Posted April 7, 2006 Posted April 7, 2006 Yeah, make sure that each instance of prime95 is running out separate cores (check the affinities). Using different folders isn't going to cut it. Share this post Link to post Share on other sites More sharing options...
blaznee Posted April 7, 2006 Posted April 7, 2006 According to your sig you have 2*512 memory.. Use custom test and allocate 400megs to each instance.. You make 2 different instances by making 2 shortcuts and add -A0 to the first and -A1 to the second in the command line option.. 800 megs pr. instance is for 2gig rigs.. P.S. My rig hits 63% load with blend tests started on both cores - so yo HAVE to use custom test.. Share this post Link to post Share on other sites More sharing options...
FlyingWV Posted April 7, 2006 Posted April 7, 2006 Quick question. Would 4GB neccessitate 1600MB? Thanks. Share this post Link to post Share on other sites More sharing options...
Triton.se Posted April 7, 2006 Posted April 7, 2006 Download the latest version and try again. Older version don't know what to do with new cpus... Share this post Link to post Share on other sites More sharing options...
blaznee Posted April 7, 2006 Posted April 7, 2006 Rule of thumb.. 80% memory in total.. So 40% pr. core on dualcore cpu's... No need to be exact with a calculator ;-) Share this post Link to post Share on other sites More sharing options...
FlyingWV Posted April 7, 2006 Posted April 7, 2006 Aha! Thanks! I assume it should scale up since it doubled again, so I imagine 1600 would work. Thanks again Share this post Link to post Share on other sites More sharing options...
MoMoDic Posted April 8, 2006 Posted April 8, 2006 thanks for eveyone that helped me on this problem. i've now manage to get the cpu running a 100%. and it sucessfully passed 8hr of torture test. Share this post Link to post Share on other sites More sharing options...
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