What effect does multiplier have over fsb?

krooton

krooton

krooton

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I recently installed a XP 2400+ in my gf's Asrock K7S41GX, but I've encountered a strange anomoly.

The motherboard doesnt allow for multiplier adjustments without settings jumpers on the board.

I don't have any spare, and as such, have had to deal with the multi being stuck at 22.5

This means to get the cpu to 2Ghz, I need to set the fsb to 90.

The ram setting in the bios still lets me set it to 200Mhz, so I guess the ram isn't being slowed down?

I know the cpu should be running at 133x15, so how much, if any, performance am I losing running it at 90x22.5?

Will the temps be higher?

166x12 would be ideal, as the ram is rated to 200.

Please help
 
Won't affect the temp of the cpu at all, but i would guess you would lose some performance because of the low fsb. Download cpu z to see what speed the ram is running at.
 
XP CPUs are different to say A64s in that A64 performance isnt hurt by lower FSB where as an XP, the CPU loves the memory bandwidth of higher FSBs.
Example
A) Athlon XP 200fsb x 12 multi = 2.4 ghz
B) Athlon XP 240fsb x 10 multi = 2.4 ghz

B would run faster in applications than A.

Run the FSB as high as the RAM will allow cos at the mo your performance is being strangled.
 
unless your planning on putting multiplier down to increase bus speed, but other than that yeah they are barring the M range
 
cokecan72 said:
yeah the more FSB the better :)

jsut one Q, arnt XP's multi's locked?? unless your using a mobile 2400??
Click to expand...

Bought it off MM, didn't mention it was a Mobile, and I didnt check, thought it was just the Asrock mobo being funny about the jumper settings.

If it is a M, bargain! :D

May as well bump it to 200x11 then, xp3200 for £25, lol

My gf's machine just took a heck of a step up from the 1.1Ghz Duron
 
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