Found some memory

CAS latency (sometimes shortened to CL) is a measure of how fast the first byte of info gets in and out of a RAM module. There are CL2 and CL3 DIMMs. CL2 means that it takes two processor cycles to get the info in and out; CL3 take three cycles. Although the speed boost is imperceptible as it affects only the first byte. When memory is listed with hyphens (ex., 2-2-2; 3-2-2) the first number is CAS latency.

Also see the developers comments about DIMM types in various Macs at http://www.mactcp.org.nz/dimmfirstaid.html If both sticks are installed in a Mac, one of them may be disabled, however, DIMM First Aid can usually fix the problem. http://www.versiontracker.com/moreinfo.fcgi?id=10415

The PC100 in the part number indicates the speed (100MHz). These chips can only be used in the B&W G3 and the early G4s (PCI & AGP). PC133 RAM can also be used in these Macs, however, they will only run at 100MHz speed.

If you download the free MacTracker it will indicate what RAM is used in each model of Mac.

Cheers, Tom

Texas Mac Man,

I wonder if you can help me answer my memory question? I just bought a used Powermac G4 AGP from work. The tech there told me it could accept a max of 1.5gb in pc100 sdram. Right now there is 256mb installed. My neighbor gave me a 512mb stick of pc3200 ddr 400. Can I put this in my system? I realize if I can that it will only run at 100mhz, but would I be risking damage to my mobo if I put this in?

Any and all help/advice is greatly appreciated:)

PC3200 won't work in your G4.