My Name is Zulmahdi, I need your advised for my problem Last month i bought PC with specification : Mainboard : ECS K785A Processor : Athlon XP 1800 MHz Memory : 256 SDRam ( 2 pcs pc133 ) Hardisk : 40 GB / 5400 rpm VGA 64 MB : GF2 MX 400 Flopy Disk CD RW 40x12x48 Modem 56 k When I started PC in dialog box imfrom that speed is 1100 Mhz (I loosed speed 700 MHz, Why ?). BIOS Setting for CPU Clock/speed 100/100. When I change CPU Clock/speed to 133/133, dialog box imfrom that current speed is 1550 then windows was halted ( I use Win 2000 Prof )I try again and windows still halted then i setting back to 100/100 How can I have real speed of XP 1800? Why XP 1800 is very hot & Noise? Thank for your help & advised Zulmahdi

On an Athlon XP 1800, the 1800 doesn't refer to the speed it is a model number. The speed of 1800 is supposed to be 1.53Ghz. The only reason I can think of for your system halting, is that your memory doesn't support a bus speed of 133Mhz? Try 100Mhz x 15 to achive the right CPU speed. Or, you don't have enough cooling in your system. Try a new CPU or system fan.

I had the same problem,when i changed the clock speed to 133 to get the 1.53Ghz the comp would just start to boot up and then shut down and start backup again.what i did was clear the cmos memory on the board and it started right up at the 1.53Ghz speed.i have never had a problem with it since.worked for me,hope this helps.also regard the post above,you need good cooling for AMD CPU'S.