Errors when overclocking my Celeron 300A

[TechyJono]

Hi
I have a Celeron 300A on an Abit BH6 mobo, dont know how fast my ram is though?

I change the settings of the system bus throught the bios to 100 and then save the changes, that goes fine. It does the memory test and thats fine also. But when it passes the Windows 98 (1st Edition) splash screen it keeps coming up with errors like "cannot find ....(some sort of file) , youre system must be restarted"

Anybody know what I'm doing wrong? Or have a solution to this problem

Thanks
TechyJono

 

[Homer]

Techy, as currently configured, your system apparently will not stand this overclock. Bearing in mind that most, but not all, C300a's will do the 450 dance, here are some thoughts:

You haven't mentioned changing the AGP:FSB ratio. At 100 fsb it should be set to 2:3. That's presuming you're using an AGP video card. If you're using a PCI card it's irrelevant.

You could try bumping the voltage up from default, which value I'm embarassed to admit I've forgotten. It's in the same bios screen as the FSB, I think, and you should try one increment at a time.

You may have inadequate cooling on the CPU, which can be improved by several means. Sometimes just a better application of thermal compound, sometimes a better HSF is required. Sometimes the overheating is caused by an underventilated case. Heat is not your most likely problem however, as usually this problem presents as instability in use, after booting into Windows OK. If you have a "retail" Intel CPU the HSF is likely adequate.

Your RAM is inadequate at 100 FSB. Most expeditious (you owe me $0.50 for that word) way to check this is to borrow some RAM known to be OK at 100. As a possible alternative look for memory timing settings in the bios, possibly three consecutive settings of which "cas latency" may be one. If any or all of these have values of "2", set them to "3", and try again. Also try removing all but one DIMM, and placing that in each of the DIMM slots in turn. Some people have found this to work with the BH6

Sometimes the BH6 mobo is the problem. Trying your CPU in a friend's computer known to overclock OK would likely reveal this problem.


Good luck.

 

[Weyland]

Just to interject my OC problem that I once had, I had an AMD K6-2 350 OC'd to 366 and I got a registry scan error everytime I booted up. Once I told it I did NOT want to reboot, everything was fine (half the time). Once I changed the FSB back to default, everything works fine.