If the tower is turquoise then it's definitely a G3. Most PC100 memory should work. Many PC133's, too. Not all memory of either speed will work, because of timing issues.
The DIMM First Aid utility runs under OS 9, and can see if your memory will work: http://www.mactcp.org.nz/dimmfirstaid.html Some memory will be rejected when you install the latest firmware update because of timing issues. DIMM First Aid can modify some non- working memory to get it to work. -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list