Beginner's question to the overclocking gurus

[Samsonid]

Hi,

Suppose we have an old Celeron633 (66FSB) to play with.
Now instead of overclocking it to a higher CPU speed we want to keep it at 633, but...
...force the FSB to run at 133Mhz; so as to take full advantage of the PC133 SDRAM modules currently installed.

So, is it a good idea to do the following two steps?

1. Lower the multiplier from 9.5 down to 4.5 (via the mo/bo jumpers)
(at this point the CPU is brought down to 300Mhz)

and
2. Now use the BIOS settings to bring up the FSB to 133Mhz, and thus bring back the CPU speed to 600Mhz. (a little lower than initially but that's OK)

Would these two steps be effective to utilize the full extent of the PC133 SDRAM?

Again, this is an experiment in which I do not want to go crazy with clock speed, just curious if it could make best use of the installed memory in a stable way.

What do you thing? Can it work?

Thanks
Thomas A.

 

[JokerF15]

If i am correct, i think the celerons are multiplier locked.

Meaning you can't change the multiplier. =)..

-JokerF15

 

[Doh!]

You have the right idea....but!!! You can't do this with Intel cpus. They are all multiplier-locked (it's been this way with Intel cpus for quite sometime). You can't even mod anything to unlock the multiplier w/ Intel cpus. So....forget about it.

 

[Samsonid]

The multiplier is locked.... Thus, the jumper settings will be ignored by the CPU... I see!

In that case this question has been answered.

Thank you gentlemen for providing this info 🙂