XP 2400+ recognised as 1800+

  fred 21:14 26 Sep 03

The title says it all.

Initially the processor was recognised as a 2400+ but now, despite no hardware or software changes, it is recognised as a 1800+.

Performance wise it seems very close to an Athlon 2000+ which I also run. My grounds for this are that both machines run UD 24/7 and, on average, get through very nearly the same quantity of units a week.

Any ideas please?

Tried a search on 'recognised as' but no result.

  Steve N 21:20 26 Sep 03

You need to go into the BIOS and change the multiplyer. If you FSB is 133*2 (266MHz) then change the multiplyer from 13 to 18. More likely though your CPU will take an FSB of 166*2 (333MHz) so you should change the clock multiplyer from 10 to 14.

  keith-236785 21:36 26 Sep 03

as Steve N says above, go into your bios and look for memory/cpu fsb settings.

your XP 2400 is a 266FSB processor so you would need to set your FSB at 133/133 or maybe 133/100 if you are using sdram instead of ddr memory. DONT (if you have the option) go to 166 or you could blow your proc/memory.

setting to 133 should then show your proc to be a XP2400 running at about 1.9ghz.

good luck but be careful as setting these wrong (too high) could cost you a lot of money (new motherboard,proc and memory) possibly more.

  fred 21:46 26 Sep 03

Thanks Both of you. Just gone into the BIOS and found that it was set to 100 MHz.:-( . Set it to 133 and all seems to be well.

At the moment it's using 2100 DDR borrowed from another machine. Any advantage in using 2700 DDR?

Again Thanks.

  The Sack 22:12 26 Sep 03

An Athlon XP 2400+ runs at 15x133 to give its default of 1995MHz (although mine is running at 11x200)

  The Sack 22:19 26 Sep 03

The bandwidth of an Athlon 2400+ is 2.1GB/s there is not benefit to using RAM with a maximum bandwidth of 2.7GBs unless you intend to run the CPU on a 333MHz FSB, not something i would recomend unless you are using an nForce 2 mobo or similar board that locks the PCI and AGP bus frequency.

  fred 22:21 26 Sep 03

Thanks all

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