Bad Ram Slot in my Dual 1.25 GHz Mirror Drive Door G4?

MonolithTMA · #1 November 30th, 2005, 12:03 AM

Greetings all,

I got a terrific deal on some RAM and installed it, but the third slot DIMM2/J23 always appears as empty. I've tried every combination and all the DIMMs work fine in every other slot, but that one just won't work. Again, each DIMM works perfectly in any combination, but the DIMM2/J23 appears dead.

I've read a few things that suggest that I may need a new logic board to fix this. I really hope that is not the case.

Any ideas?

crouse236 · #2 November 30th, 2005, 04:22 AM

Hey Monolith,
Unfortunately there is no other option than installing a new logic board, this problem is not unheard of.
Chris.
Apple Service Technician.

MonolithTMA · #3 November 30th, 2005, 06:52 AM

Well. I was afraid of that. Thank you for the information. I guess the next time I buy a machine I will have to test all the DIMM slots myself while it's still in it's warranty period. Overall, I love this machine, aside from the fact that its first logic board fried its self within the first six months and now this one has a bad DIMM slot so I'm eternally stuck with 1.5 gigs of RAM as opposed to the possible 2 gigs.

Thanks again.

ElDiabloConCaca · #4 November 30th, 2005, 10:07 AM

Howabout running the Apple Hardware Test CD in a loop many times? This could possibly confirm whether or not the RAM slot is truly dead.

MonolithTMA · #5 November 30th, 2005, 10:31 AM

Quote:

Originally Posted by ElDiabloConCaca

How about running the Apple Hardware Test CD in a loop many times? This could possibly confirm whether or not the RAM slot is truly dead.

I've removed all the extra things I've added, except for the additional hard drive, but it says that the Apple Hardware Test is not compatible with my machine. Do I need to remove the extra hard drive as well to do the test? I am running Tiger 10.4.3.

Thanks for your input.

ElDiabloConCaca · #6 November 30th, 2005, 02:45 PM

Are you using the Apple Hardware Test CD that shipped with that computer?

MonolithTMA · #7 November 30th, 2005, 03:03 PM

Quote:

Originally Posted by ElDiabloConCaca

Are you using the Apple Hardware Test CD that shipped with that computer?

Yes, I am. It's the only one I have.

ElDiabloConCaca · #8 November 30th, 2005, 03:46 PM

Strange... I don't see why it would tell you that your computer is not supported. Have you ever tried running the hardware diagnostic CD in the life of your computer?

It may very well be the hard drive, although I don't see why it would complain about that. If it's convenient, remove the hard drive and place the original back in and see if the hardware test works.