| Joined: | Sun Apr 1st, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
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The current draw is about 240Watts with a limit of 300Watts available to the PCI buses. That's a maximum which in practice is unlikely to be reached. More powerful cards have a much higher draw and would need an external power supply. Apparently it's quite an old card in computer terms.
Apparently you still need a native Apple card to boot into safe mode or recovery because the 970 GTX drivers don't load until after theOS is up and running, whereas the native board drivers are in firmware.
It seems you download the appropriate drivers from Nvidia and run them before switching out the small card for the large one. The OS loads the drivers then you get video to the screens.
I still need to do more research but it looks like it should work.
I need to get back on the Apple boards and ask there.
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Robert.