P3 650/100fsb + Abit VH-6 => it won't OC!!!!!

[SithLord]

I have an Abit VH6 MoBo and a p3 650/100fsb chip. 256m sdram and a voodoo 3. Every time I go to the soft menu to overclock it to 800 and bring it back up, I get an error saying that the CPU is unworkable. if I hit F1 and comtinue into Windows, it doesn't recognize the changes and reads it at 650. Could someone let me know what I am doing wrong? I have tried different core voltages and everytime, it still says that it is a 650 in the post screen. ANY INFO WILL BE GREATLY APPRECIATED!!!!!!

 

[anvil]

I am not familiar with the VH-6 board, but on the abit bx6 -r2, you have to turn off the "stop on error" switch in the SoftMenu to stop getting the error message when you boot. Check it out.

By the way, if you still have problems, you might try a less agressive oc than 800 at the beginning. I believe there are many slower fsb choices available on most Abit boards. Get things going at lower speeds before trying the high speeds, ... and increase voltage cautiously. You need to establish that your temperatures are low before trying high voltage.

Good luck!

anvil

 

[SithLord]

As far as I know, the Cpu temp is around 93 with the system temp around 89, so I think that as far as the temp issue is concerned, it might be ok. The main problem is that the mobo won't recognize it as an 800 after I specified it in the bios. Windows doesn't either. BTW I have a golden orb and 3 fans on the sucker.

 

[anvil]

Sorry, I misunderstood you.

You must set the multiplier at 6.5 since it is a 650/100 processor. Then you can choose different speeds for the fsb. Setting it at 100 would be to run the processor at 6.5 * 100 = 650 mhz, setting it at 112 mhz would result in an overclock of 6.5 * 112 = 728 mhz, setting it at 120 mhz would result in an overclock of 6.5 * 120 = 780 mhz, etc., etc. You will overclock an Intel processor only by resetting the fsb as described.

Only by selecting an fsb of 123 mhz (actually a fraction more), if that is available on your mb, would you would produce an overclock of 6.5 * 123 ~ 800 mhz. I had thought that was what you were trying to do. You should work up to the higher speeds by setting lower fsb's, like the 112, checking that you are stable (with software like Prime95) and that temps are still low before moving to higher speeds.

Only up the vcore when you can operate at the chosen speed, but stability is still not achieved. (The Torture Test in Prime95 runs for several hours, so complete stability is not clear at first.) The software can be downloaded for free. I think the URL for Prime95 is

www.mersenne.org /freesoft.htm

This takes a little patience, but with your mb and processor, you will probably be successful.

anvil