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Old 12-20-2009, 10:30 PM
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JFreak JFreak is offline
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Location: Tampere, Finland
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Default Re: HD3 3rd card not recognized

Quote:
Originally Posted by dhumez View Post
Maybe it is not a good thing to do but I plug in the card #3 in slot 4 while the computer was on. If the card is recognized the computer will do a restart. Wich it did so I know it is not the PCIe.
Brave soul.

Usually it will break either main board or the card, if you plug a card in while the power is on. It will also force a restart when the computer finds out there's some erratic change in main board voltages, so your logic of "recognizing" the card is not right. Yes the computer recognizes the card but not because it could "talk to" the card but because the card is disturbing the computer's status quo.

Now you have few things to test before you call anyone.

#1:
Take cards 2 and 3 off the computer, label them so you know which is which, and also label both flex cables so you don't mix them either. Then try to run PT with only the core card, run digitest and power off the computer. This should work perfectly, with PT and using Digitest. (Be sure to reboot/shutdown your computer after running the Digitest...)

#2:
Insert card 3 (the one that you think is not working) into slot 3 (the one that you think should be working) and be sure to use the flex cable that has already been working in your earlier testing. Try to run PT and see what happens, and also run Digitest. If the card is recognized and shows on PT, then you know that the card and the flex cable are working just fine.

#3a:
If it works, then replace flex cable with another one and try again. See if both the flex cables are really okay. If the both cards still show up, your flex cables are okay. If not, you know you have a faulty flex cable and luckily the spare part is cheap.

#3b:
If the step 2 does not work, then replace flex cable with another one and try again. If it works now, you know that the first flex cable you tried is faulty and luckily the spare part is cheap. If it still does not work with either flex cable you have, then you most probably have a faulty card in your hands.

#4:
If steps 2 and 3a were success, then put in the last card into the last slot using any flex cable (because you have now proven both flex cables should be working). Try to run PT and see what happens, and also run Digitest. If all the cards show up now, then you might have had bad connection earlier.

#5:
If you only see two cards, then swap cards 2 and 3 and try again. If the perfectly working card 2 does not work in the last slot, then you most probably have a faulty motherboard in the Mac Pro. You can verify this assumption by swapping flex cables and try one more time, and if the last slot does not come alive then it most likely is fried.

Follow this logic and you will find what's bugging you
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