PSU and GPU

kaza66

Honorable
Jun 13, 2012
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10,510
Hello,
Im building my own pc soon. I just wondered if my PSU needs a PCI-E connector to go into the graphics card. Or if you just have a connector that powers various bits on the Motherboard. My gpu is a Radeon 7750.
 
Only the highly overclocked models require a 6pin connector. 7770 uses twice as much power so it does need a 6pin connector.

All modern psu's have at least one 6pin connector. If yours doesn't, you just use the molex adaptor that comes with the video card (if the card requires a 6pin)
 

kaza66

Honorable
Jun 13, 2012
7
0
10,510


Ok i did some research and please disapprove/approve. So radeon 7750 does not need a connector going directly into it from the PSU. The psu has a 20+4 pin connector, that goes into the motherboard. 20 of these pins will just go into the motherboard and do whatever. But the other 4 are used to power the Radeon 7750 (Graphics Card) Am i correct?
Thanks
 
The other 4 are for motherboards that DO require 24 pins, like so:
20-into-24-pin.jpg


There is also sometimes another 4-pin auxiliary connector that also goes onto the motherboard, like so:
3383da04_vbattach151922.jpeg


Neither of these would be used in a situation to power the graphics card. Either way, the 7750 does not need a power connector.