Re: Blue and White G3 memory issue - problem resolved.

[Garry Hamblin]

I believe you are both right and my initial supposition was correct.  I 
took the memory stick and installed it in my G3 iMac 500 which 
recognized the full 256m.   So it isn't a problem with the stick, 
therefore it must be the memory controller.  Oh well, I did swap out 
the 128m stick from the iMac and put it in the Blue and White so it now 
has 256m total which will have to do for now.  Thanks for your help.

Garry Hamblin
Saskatoon, SK
G4 iMac on Panther
'How sweet it is'
On Oct 2, 2004, at 6:18 AM, GDB-B&W-YDL3.0.1 wrote:
Neil Hughes wrote:
On Fri, 1 Oct 2004 12:54:00 -0600, Garry Hamblin wrote:

I recently picked up Blue and White Rev A machine and just attempted 
to upgrade the memory in it.  Stuck a new 256M PC133 stick in slot 3 
and it is only recognized as 128M.  It is single sided 8 X 32 stick. 
 Is the stick defective or have I come up against some memory 
controller problem specific to an early machine?  Anybody have 
knowledge on this?
Thanks.

Somebody will come along with a more intelligent and detailed 
explanation
soon I hope, but I think yes you've hit an issue with the B&W memory
controller - it cannot recognize all of the memory on sticks using the
higher density RAM chips (as opposed to the lower density ones that
result in chips on both sides of the stick).

Affects Beige, B&W and G4 'Yikes' models I believe.
Neil
Garry, as Neil said, I believe this problem only applies to certain 
machines.  I purchased the cheap 256 Mb sticks of PC100 RAM from OWC 
and they work fine in my B&W 400, but it is a Rev B so that may be the 
difference.  BTW, OWC does have the disclaimer on the ad with this RAM 
that it may not work in all machines.
Just a message from Doug...



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