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New Graphics card (7950) PC wont boot

Hello!
Im having some issues with my new GC that I was hoping someone here might know anything about to fix.

My problem is that after connecting my new XFX Radeon 7950 the PC wont boot. Nothing happends.

Ive connected the new graphicscard with the 6pin that I previously used for the old graphics card, but this new card requires both a 6pin aand a 8pin to power. (picture)
http://i46.tinypic.com/9ftez6.jpg

So I bought a 8pin to 2x3molex (male) from the same site that sold me the GC (picture)
http://i49.tinypic.com/afhdua.jpg
and connected it with a 6pin to 2x 4 molex (female). I connected the 6pin to the PCU and the 8pin in the Graphics card. I thought that was done correcly, so I tried powering it up. Wouldnt start.. At all.

So I took away the molex-connection, and tried with a 8pin to 2x 6+2pin, to connect the 8pin into my PCU and one of the 6+2pin to fill the 8pin slot of the GC.
Nothing.
Picture of the GC + molex & 8 to 6+2 pin cables:
http://i48.tinypic.com/30kejv8.jpg

Keep in mind: I have very little knownledge of PC building and graphicscards in general. :)

So my question to you:
- What am I doing wrong?
- Is there anything I can do to finally get to use my new Graphicscard?
- Is it possible that Im unlucky enough to just get a defected card, and should contact my dealer?

Picture of my PCU:
http://i49.tinypic.com/10hovmx.jpg

I thank you for reading through my thread, and hope you have anything to say that might be to any help!
Cheers, Isak.
14 answers Last reply Best Answer
More about graphics card 7950 wont boot
  1. How much power and what brand is your power supply?
    Quote:
    Is it possible that Im unlucky enough to just get a defected card, and should contact my dealer?

    It is possible.
  2. why arent you just connecting the card directly into a 6 pin and 8 pin connector?
  3. woops answered the wrong post
  4. smeezekitty said:
    How much power and what brand is your power supply?
    Quote:
    Is it possible that Im unlucky enough to just get a defected card, and should contact my dealer?

    It is possible.


    The power Supply is a OCZ 600w MXSP.
    Is it so; that the cables for my PSU is unique for me? Or should there be no problem borrowing from a friend?

    Lord Tumnas: I have no such thing
  5. Your PSU(Power Supply Unit) according to Newegg comes with a 6+2pin PCI-E power cable and a 6pin which is what the card needs.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817341017
  6. cliffro said:
    Your PSU(Power Supply Unit) according to Newegg comes with a 6+2pin PCI-E power cable and a 6pin which is what the card needs.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817341017

    Thanks for the research! But is that cable unique for my PSU?
    The problem is that I cabt find mine, so I borrowed my friend's 6+2
  7. totemized said:
    cliffro said:
    Your PSU(Power Supply Unit) according to Newegg comes with a 6+2pin PCI-E power cable and a 6pin which is what the card needs.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817341017

    Thanks for the research! But is that cable unique for my PSU?
    The problem is that I cabt find mine, so I borrowed my friend's 6+2


    no, most PSU's have a 6+2
  8. totemized said:

    The problem is that I cabt find mine, so I borrowed my friend's 6+2


    Is it the same model of PSU?
  9. Your PSU(Power Supply Unit) according to Newegg comes with a 6+2pin PCI-E power cable and a 6pin which is what the card needs.
    I've been looking all over the place for whats left of cables and leftovers after I first built my PC, but I cant find things such as the 6+2 pin PCI-E. But as I said: I borrowed the cables from my friend, who just recently built his own computer and had leftovers.

    Is it the same model of PSU?
    No its not. :/
  10. totemized said:
    Your PSU(Power Supply Unit) according to Newegg comes with a 6+2pin PCI-E power cable and a 6pin which is what the card needs.
    I've been looking all over the place for whats left of cables and leftovers after I first built my PC, but I cant find things such as the 6+2 pin PCI-E. But as I said: I borrowed the cables from my friend, who just recently built his own computer and had leftovers.

    Is it the same model of PSU?
    No its not. :/


    It may or may not work. However if you were already using it, then it would seem that it isn't working. Or the card is dead.

    Best way to test (if the cable was already being used) would be to try the card in your friend's PC. If it turns on and displays bios info/splash screen then it's not the card for sure.

    And if it does turn on, it means you need the right cable, You can contact OCZ here to inquire about replacement cables
    http://www.ocztechnology.com/NewTicket.html
  11. Best answer
    This issue is now resolved! :)
    I found the original cables, and it worked out perfectly!

    Now I got a new internal harddrive on the way, and will be able to post high quality YouTube videos on youtube.com/itsarealpickle :)
    Thanks!
  12. totemized said:
    Hello!
    Im having some issues with my new GC that I was hoping someone here might know anything about to fix.

    My problem is that after connecting my new XFX Radeon 7950 the PC wont boot. Nothing happends.


    Back to basics...have you tried removing the new VC and then Boot your system using the on-board video? Does it boot okay? If so, you have not damaged your MB and/or CPU. Next, have you checked to see if your MB is capable of accepting your new card? Do you need to update your MB BIOS? Is your Power Supply capable of handling this card (a minimum of 500 watts)?
    When all else fails, return to the simple things and work forward, one step at a time...
  13. I found all my original cables, and the card worked perfectly.
    Tip of the year: Dont loose your cables!
  14. I did the same with Sapphire 7970, just had to ensure cables were hooked up properly to the PSU and it took off like a jet engine :)
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