New Celeron (366-400)
Is there anyone how is able to change the Bus-frequency-multiplier with a Celeron 366 or 400?
Is there something like the B21???
Nope, you can't change the multiplyer. But... You can change the FSB speed (external memory speed). I doubt that many/any 400 celerons will do 600 (6*100), but there is a distinct possibility that the 366 could do 550mhz (5.5*100) if cooled properly (read: massive cooling). This is assuming you have good PC100 SDRAM, and a MB that supports the 100mhz buss frequency....
Do use a very thin layer of thermal grease ,instead of the standard thermal tape, between the CPU and heatsink. Read the FAQ's, on this site and others, about this.
You'll probably have to bump the core voltage up a bit from the standard 2.0 volts. Try each voltage between 2.0 and 2.3 (more than 2.3 is "very" dangerous, 2.2 or less is ideal).
Use conservative settings for your HD's and RAM, like PIO modes for HD's (instead of DMA modes), and CAS3 for memory settings, etc...
Once the system is "stable" (check by running winbench cpumark32 for 6 to 12 consecutive times using demo mode) you can then try changing these settings to be more aggressive values.
If you can't O/C with the 100mhz FSB settings, try for 75mhz or 83mhz. That may or may not work, depending on your PCI cards, HD's, and other perfs (as then they will be O/C'd at those two settings).
Let me know if this works (especially if your doing a 366 to 550 O/C).
Hope this helps.
It's isy I go 2,4V 333>500,and once I taped pin's a120,a121,b121>>>3,2V!!!
My celeron 333a work whit that voltage at 416Mhz rock solid.max 63*c whit prime 95
I have asus P3b-f and 128 MB ace pc100 memory
Coling is sandwich whit 3x5 cm fans
3.2 volts is insane for a Celeron. Still, it ain't my chip, toast it if you will...
[This message has been edited by alpha (edited 02-13-2000).]
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