Need help! my Sapphire Radeon HD6750 wont work

Hello,

I've got an annoying problem. I bought a couple of new parts for my pc but the last one, my graphics card, doesnt work. When I insert it into the PCI-E x16 slot on my motherboard and turn on my pc it just shows me a black screen. No bios, no nothing. When I remove the card the pc starts up fine. I've tried updating my bios, but the latest update posted on the HP website doesn't make it work. I've fitted the card into my brothers machine to check if the card is faulty, but it does work. I've been working on it for 8 hours straight, reading forum posts, looking for updates, checking software, checking hardware, trying everything, but it doesnt work. The slot works, the card works, but the combination doesn't. Does anyone have any suggestions?

I started out with a stock HP a6110.nl. It's guts are now the following:

Mobo: Asus P5LP-LE Leonite (stock)
PSU: Scythe chouriki 2 650W
CPU: Pentium 4 duo core 650 3.4Ghz
DDR(2)RAM: 2x Kingston 2Gb + 2x 512Mb (stock)
GPU: onboard Intel family chipset 256Mb (stock)
OS: Windows Vista Home Premium
Network: Edimax Wifi 811.0n
HDD: Hitachi HDS721616PLA3 160Gb (stock)
Optical: TSSTcorp CD/DVDW TS-H653L (stock)

As you can see it's gone some way from stock, but the 256Mb GPU makes it unstable to do any serious computing. So if I cant get the HD6750 installed I've simply wasted money and an amazing amount of time.

I've given you as much info as I can. I hope one of you can do what my hobby skills haven't. Please HELP!
12 answers Last reply
More about need help sapphire radeon hd6750 wont work
  1. Probably the power supply. Swap out the PSU for the one in the other system see what happens.
    Could also be the card is not compatible with the motherboard.

    What PCIe revision is the motherboard? There are issues at times with using a 2.1 PCIe card in a 1 PCIe slot.
  2. I used the Scythe PSU from my machine when I tested the GPU in my brothers machine, so its not the PSU.
  3. hang-the-9 said:
    Probably the power supply. Swap out the PSU for the one in the other system see what happens.
    Could also be the card is not compatible with the motherboard.

    What PCIe revision is the motherboard? There are issues at times with using a 2.1 PCIe card in a 1 PCIe slot.


    I dont know which revision it is, but the box my GPU came in doesnt say it's an PCI-e 2.1. It just says PCI Express.
  4. the motherboard card is pci-e 1.0 does you have another older card on hand to try look like this board could not support 2.1 graphic card
  5. that is from amd for your hd 6750 card (Interface de bus PCI Express® 2.1 x16 )
  6. No, I dont have another PCIe card laying around. But again; I cannot find any notation anywhere that the HD6750 is a PCI-e 2.1 card, it only says PCI Express. Or am I missing the point?

    Thx
  7. I cant read french to good, but the "PCI Express 2.1 x16" kinda stands out. Thanks for the quick replies. Seems I'm gonna have to find a PCI Express 1.0 card for my pc.
  8. If it's not the power supply, only thing really left to check is the motherboard.
  9. sorry for the fench link just forgot to put it in english.to @hang-the-9 is hd 6750 wont work the motherboard only support pci-e 1.0 and the card is 2.1
  10. Couldn't they also go with a 2.0 card? I know there are issues with the 2.1 cards (which is why i don't want to buy a 2.1 for my 1.oa express) but from what i understand there doesn't seem to be these problems with the 2.0 ones. Just a thought.
  11. looking around i found this on ASUS forums, it might be helpful

    http://vip.asus.com/forum/view.aspx?board_id=1&model=P5L+1394&id=20091227032601437&page=2&SLanguage=en-us

    Specially the last poster that tells you what cards he tried on the mobo and worked.
Ask a new question

Read More

Graphics Cards Graphics