OK, so here's the latest.
I didn't get around to rebuilding my machine on Wednesday as I had hoped, simply because I had ordered another 512MB of PC800 Rambus RAM via Ebay, and I was waiting for it to arrive, so I wouldn't have to ull the box apart again!
So, the RAM arrived last night, and this afternoon, I pulled my machine apart, put the Intel board in and powered up.
Thankfully, I had had the presence of mind to print off the instruction manual for the MB (or at least the parts I thought I might need) in advance.
When I powered up, I got 3 short beeps, which according to the manual means a "first 64KB memory error".
So, I then had to pull it all aprt, and rebuild it all with my old MB again.
Happy happy joy joy.
So, anybody got any ideas what a "first 64KB error" represents? Is it cheap to fix or expensive?
I swear, some days I wonder why I like computers at all.