AMD athlon underclocked?

[rahan26]

Just recently bought an Athlon XP 1800+ and have been having some problems with it being a lower CPU speed then it should be. Currently its only running at 1145mhz instead of 1.5ghz. I tried changing the CPU speed inside the BIOS which was somewhat successful (i could have win2k up for about 3mins before it froze completely). Anyone have any ideas as to why it freezes when its on the correct CPU speed?

 

[Schmide]

Motherboard brand?

Dichromatic for your viewing plesure...

 

[ad_rach]

you have got the fsb set to 100 instead of 133.It should be 133 with xp 1800 at 11.5 multiplier- 11.5X133=1530ish but you have it at 100X11.5=1150(or 1145 in your case).there should be a jumper on your motherboard for setting the fsb-check in your manual if you can't see it, then change it to 133.

no matter how hard you try, you can't polish a turd. :]

 

[rahan26]

its an ECS K75a

 

[Schmide]

And the setting in BIOS for "CPU Host Clock (CPU/PCI)" is set to 133?

Dichromatic for your viewing plesure...

 

[rahan26]

Not sure what you mean by the Host clock but it looks something like this when i change it
CPU Speed: 133/133mhz
Frequency: 133mhz
DRAM: 133mhz

 

[Schmide]

Looks right to me.

Dichromatic for your viewing plesure...

 

[rahan26]

Well this is a bit of a pain... really wish i could get it to work without freezing up

 

[halkebul]

Chances are, if your FSB was set to 100MHz by default, that some other BIOS variables are deficient also. I don't know if this is possible on this mobo, but increase the CPU vcore among other things.

<i>It's your world kid!!!</i>

 

[MeTaLrOcKeR]

if its freezing when its set to 133 133 133 etc etc etc....if its not overheating (which is doubtful) than id say ur motherboard is just crap....

<A HREF="http://www.anandtech.com/mysystemrig.html?id=13597" target="_new">-MeTaL RoCkEr</A>