PowerMacG4 MDD 1.0DP Help

[Vince G4]

Hello All,

I recently napped a powermac G4 MDD 1.0DP on Ebay with no HDD. I was told it was in working order.

It arrived with no HDD and also no video card (ebay ...). I was able to install a GPU I had for the model, and it seems to work fine. However, i cannot seem to get any OS installed.

I tried OS9.2.2 (For the Powermac G4 model) only to get a illegal instruction error within seconds of the boot screen (image attached). I also tried apple hardware test, which got about partway through the logic board test before throwing an invalid memory access. When I tried removing and changing the memory modules, I got the same errors (once getting an error I could find anywhere else, saying that "someone has tried to write to location ZERO!!" - with exactly that case and punctuation). I gave up on trying OS9 and moved to OSX, but I kept getting the error that must restart my computer.

I am using a IDE to SD card for my HDD, I have tried moving it around on the IDE cables, no luck. At this point its looking to me that the system has hardware issues, but wanted to see if anyone else had any other ideas before I go back to the seller.

Thanks,

Vince

 

[eyoungren]

Sounds like you have bad ram. Try to boot with one stick at a time to identify which stick(s) is/are bad.

What I mean by that is that the Mac should boot fine with the sticks that are good.

 

[Vince G4]

Hey Thanks for the feedback. 3 of the 4 slots are populated with 2x512 sticks and 1x256. I removed all of them are tried a 256 and a 512 in different slots, same problem. Unless all the ram sticks are bad.

 

[Macbookprodude]

I second eyoungren. When i had a 1.42 MDD years back ran into same problem, sounds like ram. Go get 2GB for less than 20 dollars.