lordy wrote:
"Stuffed" wrote in
:


Anyway,

Pending a memory upgrade , my brothers PC has an

AMD XP 2400+ running at 100FSB,

It will now post but it wont boot into windows. OR into my trusty
Knoppix CD (I have CDROM on the boot list)

mobo is ECS K7S5A. Any ideas?

As others have said, run the CPU at the right FSB, if only because
otherwise what's the point?




Its all OK(ish) now. Thanks to all. BIOS reset did the trick.

Even though it was PC2100 It was crucial memory and appears to be happy
at 133(266). SiSoft Sandra reports it as 133 capable at a lower CAS
rating. Will do a memtest soon

It should be fine as PC2100 *is* the 133MHz FSB rating.

You can get the FSB MHz by dividing the 'data rate' rating by 16.
2100/16=131.25, which is 133MHz FSB (because they rounded off the 2100).

PC2700 is 166 Mhz FSB, etc.

The 16 comes from the bus being 64 bit wide, which is 8 (8 bit) bytes.
Single data rate RAM, e.g. PC133, sends 8 bytes per cycle. DDR is double
data rate for 16 bytes per cycle. FSBx16=DDR bytes/sec.


What actually happens once it's past POST? Does it restart, hang,
beep, wave a banner of protest whilst chanting?


It just stopped. But see above. Sorry for lack of info. I should know
better But after taking mooney out my pocket I was a little peed
off...

FWIW K7S5A you gets what you paid for. If it works - all good. If it
doesnt - bin it.. do not pass go etc. etc.