On Jan 4, 2011, at 8:03 AM, faithie999 wrote:

has anyone tried one of these upgrades?  the 7447A or 7448?
i have a Sawtooth G4 that i'd like to use for Photoshop CS5.  i know
it won't be blazing fast with either of these upgrades.
does anyone have experience with either of these?  the company's web
site shows comparative speed data between each processor and the
native G4 processor, but there is no data showing a comparison between
the 7447A and the 7448.
thanks
ken

I tested 3 of the 2 GHz cards when they were available about 2 years ago or so. We were looking to revitalize some of our older assets where I work. None of the 3 cards was stable. These were the 7448 series. These 3 cards went between different Macs, about 10 in all during the testing ranging from the Sawtooth, Gig-E, DA, QS2001 and QS2002. Cards didn't work reliably over one night burn in on any of the machines. OWC claimed that I didn't install them properly. Said they tested them in house when I returned them and they worked fine. My procedure was to flash the firmware on the machine, shut machine down, pull old card, put new card in and make sure firmly seated on socket and mounting lugs and snugged the bolts up, hooked up fans etc, reset PMU and was using a clean 10.4 install. Problems ranged from outright system freezes, kernel panics to programs unexpectedly quitting. Replaced these with Sonnet accelerators and had no issues. I have also gotten a lot of bad ram from OWC as of late. Of course when I RMA the ram it always tests good with them and they insult my intelligence by saying that I didn't seat the ram correctly. Of course I tested this ram in several G5 systems as well as G4MDD systems and even a few Dell PC systems and all had issues. But its the way I seat the ram.... YMMV

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