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Mac Pro 5.1 - 780 GTX Question

T

tuncer

macrumors regular
Original poster
Mar 19, 2008
124
82
Hi all,

What's the general consensus on internal vs external power supply for a 780 GTX in a Mac Por 5.1 (Mid-2010). Got the card and noticed that the video card needed an 8 pin connection. So for now I plugged in the two 6 pin connectors and it all seems to work fine (for now). Any advice would be greatly appreciated :)

I'm going from a 680 GTX to 780 GTX.
 
DanielCoffey

DanielCoffey

macrumors 65816
Nov 15, 2010
1,207
30
Edinburgh, UK
The 780 should detect that you have only put a 6-pin in the 8-pin socket and limit its power draw. If you had put a 6-to-8 converter in there, it would attempt to draw its full power if needed for the task at hand.

If you avoid running benchmarks or stressing the card to 100% you should be OK even for long-term use because the card will not need much more power than the MP can provide.
 
T

tuncer

macrumors regular
Original poster
Mar 19, 2008
124
82
So far been running it without any issues. Battlefield 4. I'll see how it goes though a tad nervous ;)
 
flowrider

flowrider

macrumors 604
Nov 23, 2012
7,232
2,962
My MVC modified Gigabyte GTX780 has been running great for over a month now. I have no issues, nor do I expect to have any. Awesome fast card.

Lou
 
T

tuncer

macrumors regular
Original poster
Mar 19, 2008
124
82
Just a follow up. I started experiencing crashes and weird artifacts with Battlefield 4 and I suspected it was the power supply. I bought an external power supply to hook up the 8 pin wire and everything is working peachy now.
 
N

nurali

macrumors newbie
May 3, 2008
4
0
tuncer said:
Just a follow up. I started experiencing crashes and weird artifacts with Battlefield 4 and I suspected it was the power supply. I bought an external power supply to hook up the 8 pin wire and everything is working peachy now.
Click to expand...

Tuncer,
which external power supply did you buy mate? :)
 
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