Originally Posted by CC268
I noticed on RealBench Stress Test you can choose how much memory to stress...I have 16GB...should I choose all 16GB or leave it on the default of up to 4GB?
if you have 16GB, run the stress with 16. BUt probably best to run something like HCI Memtest or Google Stressapptest (linux mint) before p95 so any errors are cpu and not cache-ram based. Why pull that kind of current thru your cpu if the ram is not solid. Also, you'd be surprised how many XMPs will not pass GSAT or HCI.
Originally Posted by rogergamer
I have been running prime95 28.7 blend tests (2 sessions of 2 passed self tests each) and am currently sitting at 4.7Ghz@1.44v, also passed 15m of realbench, and currently running 2 loops of x264.
previously I only used x264 and realbench and was able to reach 4.7 with about 1.38v, should I exclude p95 and try to downvolt again? it's just that x264 takes quite a while to crash, and p95 usually pumps out a rounding error a few minutes in... or should I switch out p95 for IBT? or the 4k x265?
(memory overclock next)
if you want a high current stress p95 28.7 pulls over 120 watts on my 6600K rig at 4.6/4.6 With 1.440V adaptive (load voltage is 1.405-1.43 depending on the FFT). IBT is about the same if you use 12288MB of ram (out of 16GB). The reality is you will never do anything the nature of p95... unless you are calculating primes.
If you must, and believe p95 outs a logic stress you need on the cpu (not just a thermal load) then you gotta use it and live with the downclock.
Or just use the latest Prime95 and use the commands to disable FMA3 and AVX if you so wish. Read the undoco.txt file, zero obviously disables. Put that command into the local.txt file. This way you get rid of all bugs that have been fixed while giving you an option to test without FMA3 or AVX (FMA obviously won't work if you disable AVX).
CpuSupportsAVX=0 or 1
CpuSupportsFMA3=0 or 1
"E" series chips down clock for a reason (8 core and higher) with p95 is due to prefetch "seeing" AVX and/or FMA3 calls in the stack. Otherwise the current draw is a cpu killer.
p95 is fine for these 4 cores... It just rounds out the etching a bit - typically why folks have golden chips, at least for the first month.
For memory (and cache) HCI memtest to no less than 500% coverage is very good.
Enjoy! (but keep the temps under control. sustained load at 80-85C will wear on the CPU, and package temp can get very high)
IBT - again, make sure your ram is solid before going above 'Standard"Edited by Jpmboy - 10/18/15 at 8:51pm