I bought an XFX Radeon HD 4850 video card on ebay for a great price. After uninstalling the driver from my previous video card, I plugged it in and the PC won't power on. I checked the guide and it stated that I have to connect a 6 pin or 8 pin to the power supply to get it to function. That would make it a good power connection. Included with the card however was a 3 pin. My computer only takes a 4 pin. So I need 2 individual 6 pin or 8 pin going to a 6 or 8. I may have to resell this video card if the seller won't take it back. I wanted to upgrade my nvidia 8400 gs to something that can handle Fallout 3 and newer games better. This was one such card. I don't know now what to do. Please any help is appreciated. Thanks!|||You need a dual-molex-to-6-pin adapter to get that card to work. Apparently your eBay seller unscrupulously kept the one that came with the card.
You can buy one from Newegg though: http://www.newegg.com/Product/Product.as…
The two 4-pin molex ends you plug into the 4-pin drive power connectors on your power supply. The 6-pin end goes into your HD4850.
Hope this helps.
EDITED TO ADD:
You have the wrong adapter, dude.
PCIExpress specifications for cards drawing more than 75 watts has always been a 6-pin connector (and the newly revised 6+2 pin, or 8-pin connectors). There was never a 3-pin spec in PCIexpress.
That adapter I linked to is a 6-pin adapter, not 3-pin. Frankly I'm mystified at your description of a "3-pin," because NO graphics card power cable has only 3 pins.|||I said there are TWO 3-pins so that's really a 6-pin. I'm not risking my hardware because it's a 4-pin connection. There really isn't anything mystifying about it except that I should get another video card.
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