Apple powermac g3 blue.white Service Manual

Page of 293
 
 Troubleshooting
General/SDRAM Do’s and Don’ts - 19
 
Do 
 
not
 
 use:
• parity SDRAM DIMMs
• ECC (error correcting) SDRAM DIMMs
• registered or buffered SDRAM
• DIMMs with fewer than 4 or more than 16 devices 
(irrespective of any PC-100 sticker or claims)
The Power Macintosh G3/Macintosh Server G3 (Blue and White) 
is 
 
not
 
 compatible with 
 
all
 
 defined PC-100 DIMM sizes and 
organizations. In particular, do not use DIMMs using 256 Mbit 
SDRAMs; also, do not use DIMMs employing 32-bit wide SDRAMs. 
The Power Macintosh G3/Macintosh Server G3 (Blue and White) 
cannot use the older EDO or Fast Page Mode DRAMs. In general, you 
will not be able to re-use DRAM from past Macintoshes (8500, 
8600, PM G3, iMac) in your Power Macintosh G3/Macintosh 
Server G3 (Blue and White). However, there have been some