Originally Posted by kromar
i got a lot of errors in memtest when i tried 7-7-7-24@1600mhz so i read some posts in the ocz forum where somone from ocz made some comparisons with 1600mhz loose timings and 1333 tight timings and the performance is almost the same unless you have some really crazy oc.
he also got the ram to run at 5-5-5-24 so i tried cl5 but it gives me some error beeps on boot. i also tried to increase the Vdimm a bit but it didnt help, any idea what settings will be needed to run it as cl5?
i have a strange motherboard temp sensor the highest temps on it are idle about 50Â°c and when i run a stress test the temps go down... to about 40Â°C... *** is wrong with that sensor?
I was running 5-5-5-16 for ever at like 1220 with the OCZ reaper 1333 underclocked. When i got the OCZ reaper 1600, I could run 5-5-5 up to 1300 maybe further, but i spent more time trying to get it to be stable at 1600, with the rated speed of 7-7-7-24. Well i gave up on this because it just wouldnt do it unless it was cas 8. So i dropped it to 6-6-6-18 and went all the way up to about 1500mhz. That yeilds better performance then 1600 7-7-7-24. Even slightly better then my original 5-5-5-16 @ 1220mhz. but that is ever so slightly. You should be able to run 5-5-5-24 somewhere in the range of 1200 to 1300mhz. At 1220 I was nearly identical to the 1600 7-7-7-24, maybe even slightly better. So anywhere in there you should be able to run since your ram is rated 7-7-7 @ 1600. Its all additive. It should downclock and get tighter timings in a linear fashion. If you are running 6-6-6 then i would go ahead and bring up the speed over 1333 to as high as you can to get the most out of the ram. Testing stability in ram is a long process. I just would bring up the fsb some every night and ran memtest86 or sometimes prime until i got errors by the next morning then i dropped it back a bit and tested the heck out of it. Where ever you top out, whether its 5-5-5 @ 1260mhz or 6-6-6 @ 1460, whichever route you choose, its gonna be the limit of your ram, and the most you can get out of it, and likewise, they will all pretty much perform the same. Does that make since? Playing with the ram doesnt really give you much bang at all, but when you done every thing else you could with the CPU, its something else to tinker with. And besides, I payed good money for ddr3 1600mhz 7-7-7-24! I want to get the most out of it, Even if its all in my heads. Ram is something only the benchmark numbers will revile results.