From: Andrius Simutis <SeattleDVD@Comcast.net>
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Subject: =?windows-1252?Q?GTX570_in_a_MacPro=85not_working?=
Date: Mon, 2 Jul 2012 17:19:24 -0700
Message-Id: <0768C0A1-DA6E-4425-AF77-0DD1CD493BB3@Comcast.net>
To: After Effects Mail List <AE-List@media-motion.tv>
Mime-Version: 1.0 (Apple Message framework v1278)

There was a lot of talk on here about upgrading MacPros with the GTX570 =
card, so I thought I'd throw out my problem to the list=85
With the GTX570 card in the MacPro and the card's power cables plugged =
in, the Mac won't start up. Not the doesn't show the startup screen =
issue, but it just goes click and shuts off without even getting to the =
startup chime. You have to pull the power cord to reset it. If the card =
is in at the same time as my 5770 and no power plugged into the 570 =
card, the computer starts and runs just fine. Makes me suspect that it's =
a power issue, no? Any idea how to diagnose and cure this power =
connection?
Details:
Early 2009 MacPro 8core=20
Card is a Gigabyte GTX5570 off Craigslist. This card uses 6pin and 8pin =
power and needs both plugged in. I only had the one cable from my =
HD5770, so I had to search all over to get another miniPCIe power cable. =
Not easy to find. I have one of these connected to a 6pin to 8pin =
adapter cable, the other is just the same old 6pin cable that was there =
on my 5770. How can I tell if the power cable is feeding the right wires =
to the right pins? Any dangers before I start pulling cables apart and =
rewiring them?
I got the nVidia drivers installed, so I don't think that's the issue as =
it's not even getting to a point where that would make a difference. =20
Any help appreciated, including wild guesses.
Thanks,
-Andrius.=