Hello,

Not sure if I've made a mistake here. But, I have a 2400 Athlon XP and bought an Abit NF7-s mobo to get AGP 8x and Dual channel memory. So basically it's was supposed to run at 2x133mhz FSB. I then bought some crucial PC4000 memory ( thinking of the future). Will this memory run happily at this much slower speed ? I tried it but kept getting error messages when loading win2k.

When memory is rated, it is rated "up to" it's selling rating. So, PC4000 ram supposedly is guaranteed to run "up to" it's maximum clock speed of... ~250mhz. It should absolutely just fine at 133mhz as well. If you are getting errors, I suggest you run memtest86 on your machine to see if the memory is faulty.

Thanks for reassuring me. The board was actually a 'bargain'' going cheap on a retailers site, I thought I'd get a working board with just manuals/drivers missing. Obviously not... I should know better. It's been RMA'd now.