I have a 750MHz computer (yeah I know..go ahead laugh) and am looking to upgrade the AMD Duron 750MHz processor.

I was wondering, does the FSB number (100MHz) have to be the same in order for the new chip to be functional.

The new processors I'm looking at have the same Socket A(462) structure but different FSBs (133MHz and 333MHz). Would this change in FSB still be compatible?

Thanks a lot.

Just look up your mobo and see what is compatible for that.

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quote:

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Originally posted by: 1000GHz
I have a 750MHz computer (yeah I know..go ahead laugh) and am looking to upgrade the AMD Duron 750MHz processor.

I was wondering, does the FSB number (100MHz) have to be the same in order for the new chip to be functional.

The new processors I'm looking at have the same Socket A(462) structure but different FSBs (133MHz and 333MHz). Would this change in FSB still be compatible?

Thanks a lot.

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That depends on your board and possibly it's BIOS, the easiest way would be to see what CPU's are supported by the board by looking it up on the manufactors site CPU support page, you may need to flash the bios to support faster CPUs.

Strangely it seems that newer processors ie. 333fsb will most often 'boot up' on the older motherboards... the problem lies therein that you're still limited to that boards MAX fsb and your new processor's multiplier...

For example...

An AMD Sempron 2400+ (10 x 166fsb = 1667Mhz)

Now alter the formula for the reduced MAX fsb...10 x 133fsb = 1330Mhz

It's better if at all possible to have a faster board & slower CPU (in these situations) than the other way around... as you can still OC a little

T'would be far more advantageous looking around for a *266fsb processor either Palomino OR Thoroughbred cores as they'd give you the highest clock rate for that particular motherboard

Oh yeah definitely go with the advice from the guy's above & checkout your motherboards supported CPU listing @ the manufacturers site

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