1 Topic by ShiB

  • ShiB
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  • Registered: 2003-03-23
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Topic: Over clocking

Well my computer is all up and running, worked flawless from the start, maxed out crysis/UT3 etc everything I expected to be able to. Now I am interested in doing a bit of light over clocking however to see how much more I can get out of crysis (Id say it only runs 20fps with everything at very high).

Currently running a e7200(with arctic freezer 7), palit xae 4850, and 4gb of 800mhz ram on a ga-ep45-ds3l. Now I pushed my FSB speed to 348 up from 266, and i've hit 3.3ghz, this is the only setting that I have adjusted thus far, and I seem to be stable.

My system idles at 31-32c, but that is as it runs at 2.1ghz my motherboard seems to step down the cpu multiplier when my computer isn't doing anything, not sure if that is normal or not. Also maybe it should be noted that Realtemp 2.70, when i test my senors i get a +/- 12 for core 0 and core 1, which is apparently terrible if it is over 2 - is this something I should look in to?

Also what about my ram? Currently it is at 5-5-5-15 timing, running like 840mhz or something, cpuz says Im running at a 5:6 ratio which I'm not sure is good. Also should I be overclocking my PCIex port? it is set to auto, but Ive heard you can set it to 101 or 102 and it will be fine, though I'm not really in the know about what that does at all.

Any help or tips would be appreciated, thanks.

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Re: Over clocking

Do not overlock PCIe. There's no point. Your PCIe bandwidth isn't fully utilized anyway.

I don't use Realtemp. I use Coretemp, and these programs all have false readings depending on your CPU, and they aren't to be trusted entirely.

When you say your system temperature, what sensor are you talking about? There are at least 2-3 sensors just on the mobo, and the CPU has an environment sensor and core diodes, they read differently too. You need to figure out what reading is what before doing any analysis.

Running a weird ratio like that increases latency between RAM and CPU cache, but it's a case specific thing when it comes to actual performance impact. With Intel CPUs other than the new nehalem, you don't have on-die memory controller, so the latency between RAM and CPU is more problematic than AMD systems. Once again, you need to actually get benchmark numbers to be sure that it's actually impacting your system.

My recommendation is to just OC the CPU first as much as you can, don't worry about RAM timing and speed. See the limit of your CPU first. The rule is always to find the limit of individual component so you know your boundaries, then you can go about finding a perfect middle ground.

<d-end> masturbate
<d-end> watch anime
<d-end> those are the 2 things I do when I'm bored!