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mayostudent,
Currently, I have the Abit TH7II board running with 2ghz cpu, 2X512 modules RDRAM, WinXP, GF3. Here's what I've learned:
Begin by adjusting the FSB to 105 (easy) & keeping the multiplier at 20X. Your AGP setting should be set at "fixed", not 2/3 or 2/4, at this point.
Later, when you determine a stable point, you can experiment with 2/3, but I found "fixed" useful, keeps bus very stable. Of course, ocing the bus up to 40/80 instead of the 33/66 normal, can work & will boost game scores, depending on the video & other cards you use.
The first v-core setting you try should be the cpu default, which is 1.75 in the case of 2ghz cpu.
The RDRAM "differential current" multiplier defaults at 6X, but you can adjust it to 4X later on, after ALL other adjustments are final, for a small kick up in mem performance. (In this case, 4X is highest tweak, other choices > 6X are tweaks downward.) This tweak is for stability issues & default is fine.
You probably will not be able to cold boot with a significant OC. Some have reported that the newest bios upgrade for the TH7II, gives them "better oc ability", but I think the only real change is for the RAID driver. If you have the TH7II, as opposed to the TH7II-RAID, then the bios upgr should be your very last concern, if at all.
Back to the OC process: if you cannot boot at 105, then up the v-core one value at a time, e.g., 1.75 to 1.775 to 1.80 etc.. Always keep the v-core as low as possible to do the job (to boot correctly). Once you have a starting point, then increase 1 value at a time, using WARM BOOTS, each time, & increasing the v-core only when needed. Keep the 20X multiplier for all tries. (Right now, I'm running, e.g., 110/v1.85/RDRAM 4X, oc'd to 2200, very stable, & this setup passes ALL 3DMark2001 benchmarks without glitches.)
2240 is reported to be about the stable max without EXTRA COOLING. I managed to boot up to 2300+, using stock cooling & 1 extra slot exhaust fan in case, but it wasn't stable, & never did boot at 2400. With a better cooling HS/fan, e.g., AVC Sunflower, using thermal paste instead of stock cpu thermal pad, or water-cooled case system, you can push it much higher.
We're dealing with a clock locked cpu, unless you're lucky enough to have an unlocked one. My interest is in a moderate stable OC, without extra cooling.
With this process, you'll reach an OC point for your system, but don't expect it to cold boot. The TH7II will automatically boot at default values upon cold booting, & you'll have to readjust. Once runing, it's ok.
[ November 30, 2001: Last edited by DeviLduck ]
[ November 30, 2001: Last edited by DeviLduck ]
[ November 30, 2001: Last edited by DeviLduck ]</p>
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