I've struck out now three times with ZIF upgrades and can't figure out why I can't get them to work. As a result, I'm turning to you experts. First - my hardware. I have a Beige 266 DT, 544 MB of RAM, the version B ROM, stock internal CD drive and two internal hard drives (40 GB IDE on ATA 0 and 4 GB IDE on ATA 1). I also have a USB PCI card (for a printer and digital camera) and a firewire PCI card (for a CD-RW drive and digital camcorder transfer to iMovie). I am running system 9.2.2. At 266MHz, the machine has been very stable and unexplained crashes are rare. The first time I tried to upgrade the ZIF was with OWC. They were clearing out 350 MHz G3 ZIFs cheap, but I went through two of them that wouldn't work stably and so both were returned. I followed all of the installation instructions about the jumpers, etc. and didn't try to overclock the ZIF, but to no avail - the computer crashed constantly and for no apparent reason. I tried to engage OWC in a dialog (emailed Apple System Profiler report, etc.) about what my problems might be but they didn't even try to help. I just assumed that they were selling defective merchandise and I waited for another deal to come along. Recently I bought a 450 MHz G3 ZIF on eBay from a reputable seller who professed to have tested each ZIF personally. Again I followed all instructions and set the jumpers for 466 MHZ - 66 MHz bus (the closest I could get to 450). I am still getting frequent strange crashes, like freezing up if I open more than one program. Also, certain programs like iMovie crash when they are the only programs open. I have decided to send this ZIF back, but I cannot decide if I want another one sent out. I would like the additional speed but quite frankly I am feeling jinxed and am tired of wasting all kinds of time trying to get the $%#% thing to work. Has anyone who had similar problems been able to work around them? Is there anything I can do, or am I stuck with 266 MHz in order to have stability?
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