Runner CPUs that use higher multipliers than the motherboard

AluminumStudios

Senior member
Sep 7, 2001
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I have an old ABIT BX6-r2 motherboard and a Pentium III 500. With the newest BIOS update it can only reach a multiplier of 7 (so it max's out at 700 MHz since it doesn't official support 133 FSB.)

I absolutely can not spend more than $150 so a complete upgrade is out of the question (yes I know how cheap Athlon systems are but I don't have the money for it now.)

So I was wondering what would happen if I tried to use a PIII with a multiplier higher than 7? Like if I tried installing a PIII-800?

Also, the system is overclocked, I"m running the FSB @ 117. If I did install a PIII-700, the overclocking would take it to 819 - beyond the motherboards max rated speed of 700. would this be a problem? (My PCI and AGP cards have been perfectly happy being overclocked for more than 1.5 years now)

 

Vegito

Diamond Member
Oct 16, 1999
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I"m running a 1Ghz P3 133 bus using 7.5 x 133 on it.. no problem.. also ran 8.5 x 100 on it too.. most of my bx6r2 system are all oc to 133 using 1/4 divider..

the elsa geforce 2 gts has no problem at 89mhz

memory = crucial pc133
 

bacillus

Lifer
Jan 6, 2001
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no need to worry about correct m/board multiplier for that 800MHz cpu as the chip is multiplier locked & will disregard any multiplier setting you use in bios or board jumpers!
 

AluminumStudios

Senior member
Sep 7, 2001
628
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If the mobo's max multiplier is 7, what does it see the CPU as? Does it automatically run at the correct speed since the CPU's multiplier is locked?
 

AluminumStudios

Senior member
Sep 7, 2001
628
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Ah, OK.

I must have posted my last question at the exact same time Bacillus did, because his comment answers my question.

If multipliers are ignored, as long as the mobo can supply the correct voltage, then any CPU will work. Even 1 GHz?