Hi Roy, Can you give us any more info on what model of G4 desktop it is? Maybe go to the Apple menu in OS X and select "About this Mac" and click on "More Info" and copy and paste the hardware overview into an email. Like this: Hardware Overview: Machine Name: Mac Pro Machine Model: MacPro1,1 Processor Name: Dual-Core Intel Xeon Processor Speed: 2 GHz Number Of Processors: 2 Total Number Of Cores: 4 L2 Cache (per processor): 4 MB Memory: 2 GB Bus Speed: 1.33 GHz Boot ROM Version: MP11.005C.B04 SMC Version: 1.7f8 Serial Number: G86322R3UPZ That will help to determine what type of RAM you need to look for. Chris PS: I noticed that you are subscribed to the Digest version of MUGLO, so I CCed you separately as well. On Mar 27, 2007, at 12:46 PM, Roy Hanson wrote: > its a G4 desktop..my duaghter is using a lot of graphic programs. ----------------------------------------------------------- For information about MUGLO: http://www.freewebs.com/muglo -----------------------------------------------------------