G4MDD - memory stick not recognised in slot J20

[davesoa]

I've just bought a new 256Mb memory stick from Crucial and tried to install it in the last spare memory slot on my G4MDD, DIMM3/J20 - the Mac will not recognise the memory stick claiming the slot is 'Empty'. I know the stick is working properly as I have tried it in all of the other slots. It seems that slot J20 will not recognise any memory, whether the Apple original or the other two Crucial sticks, that I have bought.
I took all the sticks out and left only the Apple original stick in place in J20 - the Mac just beeped at me and would not boot.

Any suggestions or is it just a dead slot?

Dave
 

[Paddy]

Sounds like a dead slot, Dave. You've done all the logical testing to establish that it's not the memory stick itself.

[sunset]

I have the same problem in my MDD, Dave, only it's J23 that's bad.  I just doubled up in another slot to obtain the max of 2 GB's.  Actually, if I remember correctly, the machine recognized the RAM but caused problems with the machine no matter how I shuffled them.

Good luck, Laurel

[davesoa]

Thanks - I thought that a dead slot was probably the case but it was worth a second opinion. Fortunately Crucial will refund me for the opened RAM so I can buy a 512Mb stick instead.

Dave