Video Card / PSU problem =(

3 replies [Last post]
Joined: 09/17/2010
Posts: 4

I just built a new computer and I'm having some issues. First, here are the components of the build:
Video card:




Basically what happens is if I plug BOTH of the required 6 pin power connectors into my video card, my computer will not start up. The fans spin for a few seconds and stop, then a pause, and this cycle repeats.

If I plug 0 or 1 of the required 6 pin connectors (in either of the 2 slots) it works fine.

At first I thought this was because I didn't have enough power, but all of the online calculators say I do.
The components above are the ONLY things in my system. I do not have a hard drive or any peripherals in the current system.

Sorry, but I do not have a monitor to check what the video card is outputting (I have one on the way, but for the time being I do not have one).

ANY help would be GREAT!

IF it is a power supply issue, can you suggest a wattage that would be able to handle this?


Joined: 10/29/2005
Posts: 72

Some ideas, though you may have already tried...

Does your speaker (if you have one) make any beep codes?
If so you can google the codes and that can help.

Have you tried reseating the video card?
Reseat the 6-pin cables in the power supply (if modular), heck, remove and reseat your 24-pin and 8-pin ones as well, might as well reseat your memory as well while your at it (it is not in your list, but I imagine you have it (that could damage the system if you don't).

You may want to try molex to 6-pin adapters if that works, that will let you know there is a problem with the power supply possibly. I think 850W is plenty for that system.

It might be possible that you need to disable the on-board video for your mobo, which you will not be able to do until your monitor comes in.

If I had to pick a problem if that all does not help, then I would suspect the video card.

When you state the fans spin for a few seconds and cycle, do you meen the video card fans or the entire case fans as well as PSU fan?

Unlikely, but do you have another video card or power supply you could swap out to test it?

Joined: 09/17/2010
Posts: 4

So it turns out that it's a problem with my 8-pin connector going into my motherboard. For some reason my motherboard doesn't like my 8-pin connector.

If you read the reviews on my motherboard (1 - 3 star reviews) people are complaining about the same issue I am having.

The problem is I don't know how to fix it.
Any suggestions?

Maybe I should get a new motherboard?

sherretz's picture
Joined: 07/10/2003
Posts: 100

If you're sure it's the board, you need to either RMA the board or find a way to flash the BIOS. Of course that's assuming the manufacturer has addressed the issue. Either way you'll need a monitor, and to somehow get it to cooperate long enough to get into the BIOS.

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