PB G4 ram question.

[catzilla]

I'm trying to add ram to my PB G4 15" 1.67 SLSD. I have a stick of 1GB PC 2700 CL 2.5 which is not recognized in either slot. I have 2x 512MB which work fine. Is it the CL 2.5 which is the problem? I didn't try the 2.5 alone in the PB. Is this a firmware issue? Thanks.

 

[Intell]

Is the 1GB stick a high or low density module?

 

[catzilla]

Is the 1GB stick a high or low density module?

How do I determine that? It has 16 chips.

 

[Altemose]

How do I determine that? It has 16 chips.

I believe that is high density.

 

[catzilla]

I believe that is high density.

Is that good or bad?

 

[Intell]

Bad, PowerPC Macs cannot use high density ram. It will either not work at all or show up as half the actual amount.

 

[Altemose]

Is that good or bad?

I think later models required low density RAM.

 

[catzilla]

Thank you, it was leftover from some upgrade. I did find a 512mb stick so I'm up to a gig.

 

[MrPilot]

the mem on the 1.67 HR model is the same as the earlier intel macs... the pc2700 won't work.

 

[Intell]

the mem on the 1.67 HR model is the same as the earlier intel macs... the pc2700 won't work.

catzilla does not have a double layer/high resolution Powerbook. PC2700 will work fine.

 

[MrPilot]

catzilla does not have a double layer/high resolution Powerbook. PC2700 will work fine.

Yes it will. Thank you Intell for correcting me so much 😛 hah