Excuse me if I gave you the impression that I had some inkling that those ATI video cards are destined for OSX because of some EFI related chip.
The PowerColor AX4890 1GBD5-UH (now overclocked to 1000/1100) works great in BootCamp and OSX 10.5.7. The PowerColor AX4890 1GBD5-PPH (now overclocked to 1000/1100) works great in BootCamp, but I'm getting nothing but a black screeen in OSX 10.5.7. So back to the lab.
Here are the my Cinebench 10 stats (average of three highest scores) under Vista 64 Ultimate in BootCamp on my 3.2 GHz 8 core Mac Pro:
CB 1 CPU av. = 4712.33
CB 16 (8 Physical) CPU av. = 31331
OGL Std av. = 7322.
The PowerColor AX4890 1GBD5-UH (now overclocked to 1000/1100) works great in BootCamp and OSX 10.5.7. The PowerColor AX4890 1GBD5-PPH (now overclocked to 1000/1100) works great in BootCamp, but I'm getting nothing but a black screeen in OSX 10.5.7. So back to the lab.
Yes, it's very likely that the sensor connected to the processor heatsink fan was blown as well. Your only option is to replace the whole processor heatsink with this one. If you live outside the US, make sure you find a supplier that can order the right part for you since I doubt that Apple would sell it to you directly.Could it be that I short circuit FAN B?
What could I do to solve this?
Hi, many thanks for your re
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Hi, many thanks for your reply.
I will order a complete new heatsink and look for the right model. 4 screws, B etc.
Could it be that I destroyed something else also? Or is the voltage just going TO the heatsink?
I checked the diagr button and it lights up the 5V orange light when pressed. I guess that's ok.
Thanks jasper