HD3850 Power Setup Concern

[Jeff9]

I'm looking into buying this card for my aging AGP system...
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102730

...but I don't understand how to hook it up to my PSU/mobo. I have spare 4-pin connectors that would satisfy the layout from the pictures. Does that black connector labeled "power cable" NEED to be plugged into the motherboard or can I just use my spare 4 pin connectors? I don't have a place to plug the black connector into my motherboard, that's my only concern.

Jeff

 

[rolli59]

It plugs into your spare molex connectors from your power supply with the two 4 pin connectors and the 8 pin connector into the card.
Make sure that your power supply is big enough to handle that card.

 

[rolli59]

Sapphire recommends 450watt with 30amps on the +12 volt rail

 

[Jeff9]

Mine is 400W- some reviews claimed that a 400W was sufficient, but I still might buy a 500W. How do I determine if a PSU has 30amps on the +12volt rail?

 

[rolli59]

It should be on a sticker on the side of the PSU example below
http://www.newegg.com/Product/ShowImage.aspx?CurImage=17-139-003-06.jpg&Image=17-139-003-12.jpg%2c17-139-003-04.jpg%2c17-139-003-02.jpg%2c17-139-003-05.jpg%2c17-139-003-06.jpg%2c17-139-003-09.jpg%2c17-139-003-10.jpg%2c17-139-003-11.jpg%2c17-139-003-07.jpg%2c17-139-003-08.jpg&S7ImageFlag=0&WaterMark=1&Item=N82E16817139003&Depa=1&Description=CORSAIR+CMPSU-450VX+450W+Power+Supply