Duron 700@876, going faster with conductive pen?

[Justy303]

Hello there!!
I did the pencil-trick on my duron 700, and clocked it to 876 MHz (fsb=103, multiplier=8.5 (very stable)). If I raise mutiplier to 9.0, it doesn´t boot at all, and raising the fsb to 105 makes it very unstable. How can I go 900+? I have tried different voltage settings (1.700-1.850) but I just can´t get that 900+. Is it just my bad luck with the cpu or would I have to use a conductive pen, when connecting the L1 bridges. (Sorry for my bad English, but hey, I tried :)
Duron 700@876
MSI K7T pro2
256 Mb pc133 cas 2

[Hoot]

What kind of temps were you experienceing? CPU temperature has a definite effect on how far you can push the speed. That is where a good HSF comes into play, as well as a reasonable case temp to allow the HSF to do its job.

Hoot

[Justy303]

The CPU temp is between 38 and 45C depending on voltage settings. About 43C at 1.8V.

[Hoot]

That's warm, but not out of line. You might try leaving the FSB at 100 and playing with the relationship of the voltage to plain multiplier changes. I took my 600 Duron and starting at 6x100, found what the minimum voltage was that would allow it to run Prime95 reliably. I then bumped to 6.5x100 and repeated the process, then 7, 7.5, all the way up to 10x100. That gave me a baseline to base other speed increasing experiments on. You graph those results and you can see the "sweet zone" for your CPU. Once you get out of the "sweet zone" the cost in terms of voltage and ensuing temps goes up significantly. See my graphic in the cooling forum titled Swiftech 462A Part 2. Having a non-133A motherboard, I am severely limited to FSB OC. I have never gotten my KT7 Raid above 103 Mhz, reliably, so I concentrate on simple multiplier bumping.

Hoot

[MiracleMan]

Yes, u could be experiencing instability from pencil trick (well, I never with mine), so redo the job. Other problem, you could have a bad (hard locked) chip. A friend of mine bought one Duron 800, and it only works with 8.5x100 and 10x100. There's no way to change to 9x100 and 9.5x100, cause it only post to 800mhz. Even soldering the L1s, it still can't set it. Praise Lord it works rock stable at 10x100.