Q: Cursed GTX 980 TI
My GTX 980 TI flashed by Mac Vid cards is cursed. First, it did not boot at all when plugged into internal power which is not the norm for this card. Then, once running on external power, it began to KP with Nivida web drivers listed as number one in the backtrace and a slew of references to Nvidia or Apple IO following. All the KP logs read virtually the same save for whether or not it was CPU 0 or CPU One that initiated the panic. The time to boot chime was about thirty seconds. Now it does not boot chime at all. It just hangs in POST. On a PC machine I would pull the card, reset all the ram, and pull all the other cards. I would likely uninstall and reinstall the drivers. My PCIe slot configuration has the GTX in lane 1. An OWC E2 SSD blade card in slot 2. A Rocketraid 4322 in slot three and a Sonnet USB 3.0 card in slot 4. This configuration works fine with the original ATI HD I am too slow card. Any other ideas?
MAC Pro 2010, OS X El Capitan (10.11.4), 12 core 3.43, 128 GB
Posted on Jul 4, 2016 5:07 PM
You asked "Does this mean that the Dimm in slot 4 is throwing an error."
No. All error codes start with a 4
http://www.macissues.com/2014/03/21/how-to-run-and-interpret-apples-hardware-tes ts-on-your-mac/
I have not seen a way to narrow down what DIMM/pair of DIM caused the error.
I would try pulling out half the RAM and run AHT again. The repeat as necessary to find good and bad DIMMs
Posted on Jul 5, 2016 12:39 AM
