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LordeOurMother

macrumors 6502
Original poster
Jul 10, 2014
397
122
so the lower ram slot on my PowerBook G4 1.67 only works ocassionally. But not all the time.

Why would it do that? Is the mother board failing?
 

Orizence

macrumors 6502
Nov 10, 2014
343
110
Its a pretty common failure in the 1.5 and 1.67 Powerbooks. It happened to mine so I had to replace the Logic Board
 

MacCubed

macrumors 68000
Apr 26, 2014
1,618
494
Florida
It's a BGA solder issue, a reflow may fix it. There was another thread here about using a single 2GB stick I don't remember how that worked out though
 

LordeOurMother

macrumors 6502
Original poster
Jul 10, 2014
397
122
It's a BGA solder issue, a reflow may fix it. There was another thread here about using a single 2GB stick I don't remember how that worked out though
Do you have a link to the single 2gb thread?

Also how would I reflow it?
 

MacCubed

macrumors 68000
Apr 26, 2014
1,618
494
Florida
Do you have a link to the single 2gb thread?

Also how would I reflow it?
I can't find the other thread for some reason, but to reflow you would pull the logic board out and throw it in the oven for some time. Im not an expert with reflows but some others here might
 

swamprock

macrumors 65816
Aug 2, 2015
1,226
1,780
Michigan
I can't find the other thread for some reason, but to reflow you would pull the logic board out and throw it in the oven for some time. Im not an expert with reflows but some others here might

Mine recently failed as well, in my 1.5ghz AL PB G4. I may give it over to my buddy who has a rework station to reflow it, but who knows when I'll get the bug to tear it apart.
 
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