![]() The new card has its own fan, the old one didn't, so I was afraid that the new card would make the machine a lot louder, but I haven't noticed any significant difference. For impressive graphics processing power, the ATI Radeon HD 5770 with 1GB of GDDR5 memory is a great choice for visual creative, scientific, and technical. ![]() The card measures 208 mm in length, and features a dual-slot cooling solution. So far the new card seems to be working fine. Radeon HD 5770 Mac Edition is connected to the rest of the system using a PCI-Express 2.0 x16 interface. I bought this card because the original NVIDIA 7300 card died. Not a big problem: if you look at the connector at the end of the cable, it's pretty easy to figure out what the corresponding connector on the motherboard looks like. : 2.8GHz-3.2GHz Quad-Core - 3.33GHz 6-Core Mac Pro, 2.4GHz 8-Core Mac Pro, 2.66GHz - 2. On my machine, the connectors are higher up and a bit more to the left than shown in the drawing. ![]() Verified Buyer Reviewer: Anonymous Location: Silicon Valley Age: 55-65 Experience Level: Power User Owned Product: less than a month Rating: 4/5 Works on my MacPro1,1 under Lion OctoUnfortunately, the OWC install video doesn't show the case where the added card requires a power cable and the Apple documentation's installation instructions seem to be for later MacPro machines, so the location of the motherboard power connectors is different than on a MacPro1,1's.
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