Currently Being ModeratedDec 24, 2012 5:38 AM (in response to Jason Hadden)
I have same problem with someone else's MacPro that I am troubleshooting.
Currently Being ModeratedDec 24, 2012 7:27 AM (in response to brahdah)
I actually just solved it over the weekend, here's what I did:
This had nothing to do with fixing the problem, but it led me to the solution. Since it was so inexpensive, I replaced all of the Mac's memory (it was so cheap that I was able for the first time to fill all 16GBs worth in the machine!). I thought I might have a faulty stick of memory causing the issue, but when I replaced it, the problem was still there. However, when I replaced the memory, I noticed a lot of dust in the machine (it is a 2007 model), so just in case, I went out and bought a can of compressed air to clear out the dust. I removed the graphics card again and blew out the connectors with air and placed the card back inside. Well, it's been 3 days and the problem is gone. Plus, with the new memory, the machine works better than ever. Looks like a little bit of dust ended up inside the connector from the motherboard to the card. So, give that a go if you haven't already.
Currently Being ModeratedDec 24, 2012 7:33 AM (in response to Jason Hadden)
FBDIMMs do run hot, attract dust (but usually not cheap unless you got the 2x2GB kits on Amazon now $40).
I consider running SmcFanControl a must too in these like my 1,1 model to improve cooling - and maybe keep dust bunnies from settling in and taking up home?
Currently Being ModeratedDec 24, 2012 12:43 PM (in response to The hatter)
The video problem I had may be attributed to a bad DVI extension cable.
Currently Being ModeratedDec 24, 2012 1:20 PM (in response to brahdah)
If the air compression hadn't worked for me, that was the next thing I was going to replace.
Currently Being ModeratedDec 24, 2012 1:30 PM (in response to brahdah)
Other items...Hardware Monitor
Metro Vacuum ED500 DataVac 500-Watt 0.75-HP Electric Duster 120-Volt
Too bad you can't just throw in say GTX 570 instead, $300 range and powerful GPUs.Mac Pro, Windows 8 Preview x64 3.2GHz