Problem with my new AMD XP cpu

[Temistokles]

I recently bought a new computer, witch i did build by myself
and I cant make it run at its designed speed..

the CPU is:
AMD XP 2500+ 512kb 333FSB socket-A
Barton 1.833GHz

and my mother board is:
ABIT AT7-MAX2

what i first started it it did run at 500mhz(100x5)
after that i tried to tune it up to 1300mhz(133x10)
and it failed to boot so i hit the "restart button a dozen times to make the mobo reset cmos..
when i then was able to boot up it did now say 1000mhz(100x10)
i give up fixing it myself so i just start windows and go online to find some help on irc
a m8 suggested id try 166x11 and so i did but it failed to boot again.
when i next managed to reset CMOS it was now running on 1100mhz(100x11)

so now i turn here for some help
neone have suggestions as to how to fix?

my mobo is suposed to recognize what cpu I have, but it dident, possibly cause of the cpu is newer than the mobo, tho i dont really know..

 

[Shimmishim]

did you try a bios update?

try that first see what happens...

 

[Duvie]

Check to see what bios is currently loaded in the bios firmware...Then go to the manufacturers website and get the latest if this one is not.....My gut feeling is this one is not one of the new boards in the marketplace cycle before some of the barton implementations were done...It was just a short time back that we were still wondering if the barton would come out prior to the Hammer line....

Just cause a board says it supports it doesn't mean your revision of the board does or has the latest firmaware to support it loaded.....


That multiplier issue screams bios update as well as remember that may not be a recognized 333fsb board so it may load at default at 11x133 or 1467mhz until you raise the fsb to 166fsb manually...

 

[pspada]

I too have a KT400 chipset based m/b, the FIC AN19E, and have problems running my Barton 2500+ at the 166 FSB. You might just need to move to a NForce2 board to get it working properly. I lowered my FSB to 133, and upped the multiplier to 15x to get the chip to boot at 2004Mhz and POST as a 2600+.