help with a mobile barton 2500 and shuttle

[ZippyDan]

im using a mobile barton 2500 in a shuttle sn45g (mobo is fn45g?)

the barton only has a bus speed of 266, but since i had 400 memory and the mobiles are good overclockers, i ran the barton at 333 fsb

the original bios wouldnt detect a mobile barton at all (er it would work as a cpu but wouldnt be able to identify it), i just installed the latest bios, and it detects it as an Athlon 2500+, but only if im running at 266 fsb. when i bump the fsb up to 333 (and reduce the multiplier from 14 to 11), the cpu shows up on post as Unknown CPU at 1826 mhz. this annoys me, why wont the mobo detect it as a 2500? is this normal behavior? (ive not done much overclocking)

hmm, on a side note, whatre my chances of getting this to run at 400 fsb?

 

[HDTVMan]

looks like it supports 200FSB. Maybe you need a bios update

Hopefully your CPU is not remarked.

Where did you get it?

 

[ZippyDan]

hi, i dont understand what you mean i never mentioned 200FSB anywhere

 

[Dystien]

200X2=400FSB, DDR.

 

[Ionizer86]

Interesting note here. I also have an SN45G (FN45G board) but I've got a 35V 2200+ mobile Barton. While my ram (Kingston Valueram 512MB PC2700) runs past 200 in another computer (EPoX 8RDA+, NF2 Ultra 400), my SN45G locks up when I try to boot at 200, even if I set the CPU to a low multiplier. It works just fine at lower buses though: setting it to 199 boots the bus at 198 without a hitch. I heard it could be a problem with running a mobile Barton at two full bus speeds ahead of what it should run at: 200 as opposed to 133. I recall there was a pin trick (connecting two pins) to fix the issue, but I could never loop a piece of metal that small to connect two pins on the CPU.

 

[ZippyDan]

btw i am running the latest bios. i got the mobile barton of the for sale foums here. anyway, im trying to run it at 333 (166x2) above its normal 266 (133x2), so i dont see how the comments on 200 FSB (100x2 or 200x2?) are relevant.

 

[Ionizer86]

Originally posted by: ZippyDan
hmm, on a side note, whatre my chances of getting this to run at 400 fsb?

 

[ZippyDan]

true i forgot about my side note

but im not having any trouble running the comp at 333, im just wondering why it stops recognizing the cpu id at 333

 

[mountcarlmore]

it doesnt recognize it because there is no mobile cpu that runs at 333. your cpu is supposed to run at 266. dont worry, my mobo never even released a bios that recognizes my mobile at any speed, what difference does it make?