PCMech Forums - View Single Post

Confused · 10-30-2003, 07:02 AM

There are two ways to increase the speed (overclock). One is to raise the multiplier. For example if your FSB is 133 then your multiplier is 6 to get 798. By changing the multiplier to 7 you increase the speed to 931. About a 15% increase. Your CPU MUST support multiplier changes. This is commonly called unlocking. I'm not sure how to unlock the Duron. You might check www.overclockers.com

The other method is to change the FSB. You leave the multiplier alone and increase the FSB. For example if your FSB is currently 133 with a multiplier of 6, then by changing the FSB to 150 you increase your speed to 900. About a 12% increase. Problem is when you change the FSB it affects your memory, IDE devices (HD's) and CPU core temps. Hence the system can become unstable very fast because the memory cain't take the faster speed, or the HD's have write errors or the CPU overheats.

So any overclocking should be done in very small steps with a complete system test after each change and you must keep a close watch on systemps if you mess with the FSB.

Chas

10-30-2003, 07:02 AM	#4
Confused Member (13 bit) Join Date: Nov 1999 Location: Mt Washington, KY Posts: 4,927	There are two ways to increase the speed (overclock). One is to raise the multiplier. For example if your FSB is 133 then your multiplier is 6 to get 798. By changing the multiplier to 7 you increase the speed to 931. About a 15% increase. Your CPU MUST support multiplier changes. This is commonly called unlocking. I'm not sure how to unlock the Duron. You might check www.overclockers.com The other method is to change the FSB. You leave the multiplier alone and increase the FSB. For example if your FSB is currently 133 with a multiplier of 6, then by changing the FSB to 150 you increase your speed to 900. About a 12% increase. Problem is when you change the FSB it affects your memory, IDE devices (HD's) and CPU core temps. Hence the system can become unstable very fast because the memory cain't take the faster speed, or the HD's have write errors or the CPU overheats. So any overclocking should be done in very small steps with a complete system test after each change and you must keep a close watch on systemps if you mess with the FSB. Chas __________________ I may not be much, but I'm all I think about.