overclock a CUBX ??

[Guest]

I have an ASUS CUBX 400BX (BIOS rev. 1005) and a Genuine Intel Pentium III 600e. My video card is an ASUS V7100 (GeForce 2). I would like to try and overclock this PC. I have a GoldenOrb heatsink/fan as well as an industial 20,000 RPM fan mounted on my casing.
I have never overclocked, but would like to try and hit 700MHz to start.
Here's what I tried (i didn't work, but maybe you know where i went wrong):

DIP swtiches: 1-on 2-off 3-on 4-off 5-off 6-off 7-off 8-off 9-off 10-on
according to the manual this should give me a BusFrequency of 100MHz & a multiplier of 7.0x (=700MHz no?)
I did change the PEV (sp?) jumper to 1&2 (on) instead of 2&3 (automatic)... is this right?

I did not do any other changes. The machine booted by my ASUS Probe Utility said my CPU was still @ 600MHz.
What did I do wrong? In the BIOS I only have the choice of 400 & 600MHz (when PEV jumpers are on 2&3).

Any help is appreciated... Thanks in advance!

 

[zPacKRat]

the reason it didn't work is intel locks the multiplier, so you have to raise the bus speed to oc a intel chip, and if your lucky and you have good memory you should be able to bump the multiplier to 133 mhz and get 800 out of that cpu.
also check the cpu database at www.overclockers.com and see what you got.

good luck and frag ur ass off.
zPacKRat

 

[Crashman]

Yes, you cannot increase the multiplier, you must instead increase the bus speed. You should be able to get it to 800 MHz if you raise the voltage to 1.70v-1.75v and set the bus speed to 133MHz. According to Asus you can do this in Jumper Free mode, so reset your jupers to Jumper Free mode. Also, this CPU will go to 150MHz if you don't mind having your PCI bus at 37MHz and your AGP card can handle 100MHz.

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

 

[Guest]

Thanks everyone! I successfully changed my FSB to 133MHz, so my CPU is running @ 800MHz. Thankfully the ASUS CUBX board allows my PCI bus to keep running @ 33MHz even though i now have a 133MHz FSB! And my ASUS V7100pure GeForce2 AGP card is running fine at o/c speeds too!

I am surprised that my PC-100 8ns RAM is stable, but I will soon change it to PC-133 RAM.

My CPU is now running @ 28C degrees when idle, and 38C degrees when running SETI@home. I find this a little on the hot side, so I will be installing a few more fans on my casing.

Thanks for everything! This was a great learning experience! I even learned how the BX chipset works!