(HELP) FORMAT COMPACT FLASH ON MPC3000

yep, it doesn't recognize your ram. I have the same problem with mine sometimes... Than I just have to push the ram chips a bit and it works again.
I should really solve this problem once and for all. Probably a cold or loose solder joint.

This is probably caused by the same problem that affects the MPC 500 - the memory slots are close to the pads and pick up all the vibrations from hitting the pads, so they can lose contact or get loose over time. Remove the memory and just put one stick in at a time, testing each memory slot in turn. Make sure the memory stick is pushed firmly right in to the slot. This will tell you if you have a damaged slot or faulty memory. Cleaning the contacts with Deoxit will help too.