layman question 533 vs 800

[oahawhoo]

a 533 northwood 2.8 chip taken out of a dell 2400 and placed into a dell 400sc system that had a 2.4 northwood 800. will the 2.8 run at 533 in the 400sc?

thank you for the gentle replies.

i'd popped a prescott 3.0 in the 400sc, and didnt realize just how hot it runs under a big load, sheesh. 120f idle, and 170 running a couple games. with the pipe heatsink. what a headache.

 

[F1shF4t]

Yes if the mainboard can handle a 800fsb cpu it should handle a 533 fsb one no probs. Check on mainboard manufacturers site to be sertain.

EDIT: lol realised its a dell, since boths of then are northwoods it should work, some older 400fsb ones used to not work even if the board did support 400fsb.

 

[oahawhoo]

what I was trying to find out was more basic,
if i take a 2.8 northwood 533 fsb system, and take the chip out and put it into a system that was 2.4 northwood 800 fsb,
will i end up with the 2nd system running 2.8 at 533 or at 800.
I'm unsure if the resultant fsb is determined at all by the proc itself.

 

[stevty2889]

Originally posted by: oahawhoo
what I was trying to find out was more basic,
if i take a 2.8 northwood 533 fsb system, and take the chip out and put it into a system that was 2.4 northwood 800 fsb,
will i end up with the 2nd system running 2.8 at 533 or at 800.
I'm unsure if the resultant fsb is determined at all by the proc itself.

Yes, the CPU determines the FSB. If the motherboard supports 800mhz FSB, it will also have 533mhz FSB. So putting an 800mhz FSB chip on it, will run at 800mhz FSB. Putting a 533mhz FSB chip on it, will run at 533mhz FSB. The 800mhz FSB chips also have the advantage of hyperthreading, the only 533mhz FSB chip with HT is the 3.06ghz.

 

[oahawhoo]

ah thanks so much, that's exactly what i wasnt sure of.
I knew that the 800fsb chips allow the HT, but, I was not sure if some chips are 533 and some are 800, or, if that was determined by the mb. You cleared it up completely.
Thanks very much.