Overclocking troubles

[Guest]

Hi,
until recently I had a PII 350 (3.5x100), Asus P2B M/B, 128 cas2 ram, TNT GFX card. I was looking for a cheap way to upgrade and overclock. SO I choose to buy a slotket (Asus 133) and a celeron 633 (multiplier 9.5). I upgrated to a newer BIOS. My OS is W98 and I ibought some pretty powerfull CPU and case coolers. I set up the slotket card to 1.8 V Core and to the coppermine setting.
In the standart setting (66 FSB) everything was fine and it booted into windows and was stable. I worked fine up to 83.5 (ie9.5x83.5=792), but when I put it up to 100 it booted fine but whenever it was loading up windows and tried to change to gfx mode it throw up a GPF error on some VxD lib and hang up. It was the same in safe mode, but when I was booting into Dos mode It was runnig fine I even played some older games without any problem.
Why ist it having problems in 100 Mhz mode? It cant be any components problem it was working fine before. Do I need to reinstall the OS, upgrade to Win Me, or is it just that the CPU cant handle that FSB frequency? Is ther anything else I can try. Unfoerunately my M/B only has settings for 66,75,83.5,100 ->133 FSB settings. I dont know waht I should do next. Thanks for any help.
Dimi

 

[Crashman]

Set your voltage at 1.90v, 1.80 is too low in most cases to get over 900. If it works at 1.90, try backing it off to 1.85v and see if it still works. These voltages are still OK for the Coppermine core. Set BIOS to normal 100MHz settings.

Suicide is painless...........

 

[Guest]

if ti would be a core voltage problem would it be able to boot up and pass all the tests until it loads windows, or even run in Dos mode? I thought that they dont even boot up if they have low voltage.

 

[Crashman]

Voltage level needed for stability can increase with heat, therefor it is not uncommon for a system to boot normally and then hang when you run an application. And some apps work the processor harder than others, creating more heat.

Suicide is painless...........