D975XBX2KR + power connector confusion

[craftech]

I was wondering if one of you could help me out.

I am building a new system (been awhile).

I have an Intel D975XBX2KR motherboard
http://support.intel.com/support/motherboards/desktop/d975xbx2/

A MSI RX1950PRO-TD256E X1950 PCI Express Video Card
http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=327717

A Fortron Source Blue Storm 500W Power Supply http://www.newegg.com/Product/Product.asp?Item=N82E16817104934

The power supply came with a six pin connector for PCIe cards but the MB doesn't have a header for it.

The main power connector on the PS is a 20 pin connector + 4 pin connector. Both plugged right in side by side. The +12v power connector on the PS was connected to the MB via a 2 x 2 to 2 x 4 adapter supplied with the MB as explained in the manual. No problem there.

The confusion is over the 4 pin (1 x 4) molex power connector header on the MB near the LAN/USB port on the back of the MB and the 4 pin (1 x 4) molex connector on the video card. I can't figure out whether both get connected to a 4 pin molex power supply plug or only ONE of them.

Any ideas?

Thanks in advance.

John

 

[Shimmishim]

don't worry about the molex power connector on the mobo.

be sure to give power to the video card

 

[cmdrdredd]

both...the extra power connector will help with stability...just gives extra juice. DFI boards traditionally have these installed.

 

[Aluvus]

Absolutely connect the Molex (1x4) connector on the video card.

The Molex connector on the motherboard is required (according to the manual, page 50) only if you have a 20-pin power supply and a video card that wants to draw a large amount of current from the motherboard. If your video card has its own power connector, this is probably not an issue. It shouldn't hurt to connect it anyway.

 

[craftech]

Thanks for the replies. I did read that part in the MB manual, but on the next page it said to hook it up and didn't say when not to so I wasn't sure.

The manual that came with the video card said absolutely NOTHING about whether to connect power to the molex connector or not. That made it even more confusing. I had a Voodoo 5 5500 that said it MUST be hooked up, but this one said nothing. Add to that the connector on the MB we are discussing and I am still a little uncertain. I don't want to burn any of the components up.

Thanks again,

John

 

[Aluvus]

Originally posted by: craftech
The manual that came with the video card said absolutely NOTHING about whether to connect power to the molex connector or not. That made it even more confusing. I had a Voodoo 5 5500 that said it MUST be hooked up, but this one said nothing.

You should connect it, no doubt about it.

 

[craftech]

Thanks for that. I'll connect it and leave the one on the MB empty.

Regards,

John

 

[cmdrdredd]

I'd connect both anyway...more power to use never hurts.