You're wrong. The upgrades for the beige G3, blue and white G3 and the Yikes! G4 are ALL ZIF processors. There is no other way to mount a CPU in those machines. The earlier beige machines had a dedicated CPU slot.
On May 29, 3:15 pm, "ah...clem" <boneheads...@gmail.com> wrote: > On May 27, 6:23 pm, Larry Stotler <larrystot...@gmail.com> wrote: > > > > > Sonnet made a 1Ghz G4 upgrade. Unfortunately, it drops the bus speed > > from 100Mhz to 66Mhz due to a bug in the chipset. These arent > > available new tho. > > i don't think so. while Sonnet did make a G4/1gig processor upgrade > (as well as G4/700 and G4/800), these were NOT ZIF processors. rather > hey were what are usually referred to "PCI upgrades," ie, daughter > cards for the 72xx-96xx Macs and selected clones. AFAIK, the fastest > ZIF processor Sonnet ever made that is a direct plug-in for a B&W was > the G4/500. there *may* have been a G4/600 ZIF made by Gigadesigns or > Newertech, or someone else, but i don't remember for sure. > > however, larry IS absolutely correct in pointing out that the Sonnet > G4 upgrade WILL drop the motherboard bus speed from 100 to 66 MHz. > IMBWB, i *think* this is true of all third party G4 upgrades of all > speeds, and even Apple G4 processors pulled from a Yikes. > > as for performance, the sad truth is that very few programs ever made > extensive use of the Altivec processing capabilities. even those that > do will not suffer too terribly when run on a G3, compared to the > limitation of slower clockspeed on both the mobo and processor. i > have the Powerlogix G3/1gig in a blue and white, and it measurably > outperforms a G4/400 by more than 2 to 1 on real world comparisons. > the G3/1gig also has a larger L2 cache (1MB), which gives a big boost > to apps which are floatiing-point arithmetic intensive. > > jt -- 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
