Overclocking my old P2 300mhz

bigbootydaddy

Banned
Sep 14, 2000
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tekram mobo i just bought

the mobo above has some jumpers to set between both 33mhz and 66 mhz fsb, and cpu speeds from 233-366.

I have a P2 secc slot 1 that i pulled from my old compaq that tried to kill me. the psu went up in smoke. i know about the date and manufactre codes on the cpu and they arent the ones everyone likes, aka, the overclockable ones, now, if i set the board for 366 will it not work at all? or was the date code thing on the cpu something that let the cpu overclock, not the mobo??

and i need some adequate cooling, doubt the duct technique will be to good for this...

edit: the chip i have ran at 300mhz stock in my old compaq board.
 

Jeff H

Golden Member
Oct 11, 1999
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In a nutshell, you're going to get exactly what that chip is capable of, on that board - 300MHz. Why? Because 1) the chip is clock locked, meaning it's going to set the internal clock @ 4.5x, and 2) your board only allows a maximum 66MHz FSB setting. So, 66MHz x 4.5 = 300MHz. Bottom line - no overclocking w/ that chip on that board.
 

Maverick

Diamond Member
Jun 14, 2000
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check the week on it. I used to have a p2 300 that was an SL2W8 Phillipines. These were manufactured as P2 450s but the FSB was locked at 66mhz since they ran out of production p2 300s. If you upped the FSB from 66 to 100 you got an instant P2 450. Totally stable even with default voltage. Some people even got them to go to 550. But only about 30% were able to go that high, the rest couldn't run the L2 cache at that speed (disabling it lets you go higher, but causes a HUGE performance hit).

Good luck.
 

AndyHui

Administrator Emeritus<br>Elite Member<br>AT FAQ M
Oct 9, 1999
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All Pentium II processors are at least &quot;multiplier limited&quot;, if not multiplier locked.

By multiplier limited, I mean that the highest multiplier the processor will accept is the default one, but it will still work with lower multipliers. In the case of your Pentium II, it will handle multipliers from 2.0x to 4.5x, as long as it was produced before August 1998 (about week 30).
 

Maverick

Diamond Member
Jun 14, 2000
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get any old cheap BX board that supports 100 mhz fsb and you can do the overclock I mentioned earlier. I sold a BX6 for like 40 bucks last christmas. You can probably get one for like 20-25 now.