600 -> 800

[-lynx-]

OK, I got bored and decided to try overclocking my PIII600e. I do have that PC133 SDRAM there for some reason .

So, off I went with 112MHz, 117 etc - all fine and dandy, working like a charm untill I hit 133 mark. I had to hike the voltage up to 1.85V for it to boot with any reliability. And still, from cold it stops at Win98 splat screen and requires hard reset. What's the correct voltage for 133MHz? Anyone knows? Any advice on BIOS settings?

After the reset everything seems OK, including temperature - I have a thermoprobe stuck on the cooler as close as I could to the chip and it used to show 38C raising up to 40C during prolonged hard gaming sessions. Now it shows 42C. I guess it's OK-ish .

Another funny/strange bit is that at 100MHz the boot sequence used to say "PIII600e found blah-blah-blah", then all the way "through the gears" it was plain PIII672,702 etc but when it should have shown 798 it became PIII800EB... Hmmmm... Is that normal?

Mobo is BX6 ver.2, latest BIOS (QR), V5 AGP for graphics...

[Staga]

Couple thoughts:
In bios:
Check the multiplier of PCI and AGP bus.
AGP should be near 66Mhz when PCI is 33Mhz.
I'm using my P3 700 @933 (100->133Mhz) and all i had to do was drop the PCI bus from 1/3->1/4.
Check also your mem.chips latency times; If higher than 3/3/3 it might cause some problems.
Some HD's are not "overclocker-friendly"; Especially some old Seagates sucks (Like mine  )
In BX-based boards when you raise bus-speed also AGP bus goes up (in 133bus AGP is 88Mhz when it should be only 66Mhz). Some video-cards can handle higher speeds better;Maybe you could borrow one and check if thats the reason ?

[SKurj]

Errrrrrrrrrrrmmmmmmmmmm   don't ask these questions here....
Reason.. if something goes wrong and u fry something, how are you gonna feel towards the individuals that gave you "advice"

There are many overclocking sites on the net, go read one.
There is a good chance your cpu will never run at 800 reliably btw, not all cpus are clockable to the same extent.

AKskurj

[-lynx-]

YMMV applies to all advice SKurj. I presume that all advice given in this BBS is given with good intentions and is free from malice of any kind. It's up to me wether to take it or not...