PCI-E adapter

Hello, I currently have a stock xps 630i desktop, and i am looking at placing a HD 5970 graphics card in the system, but i am worried about the power, it has a 750 watt power supply, but it only has 2 6 pin plugs for the PCI-E power (currently being used by 2 9800gt in SLI). I was wondering if it is possible to use a HDD power cable or something? adapters from 6-8 pin?
I was hoping that i could use a HDD one with adapter or something, so i can still use 1 9800gt as a PPU... Or will i have to buy a new power supply? :( trying to save money.
Any help would be great.

Cheers (email me on andyandy488@hotmail.com)
11 answers Last reply
More about adapter
  1. what resolution you use?
  2. screen resolution? 1920x1200
  3. your power supply can run 5970 along with 9800gt
    but you need one 6 pin and one 8 pin connectors for 5970 and two 6 pin for 9800gt so your psu don't have enough connectors
  4. damn :( that sucks. With what i have, i could at least run the 5970 if i got an adaptor to convert one 6 pin to an 8 pin couldn't i? :S
  5. yes you can...
  6. http://www.aria.co.uk/Products/Peripherals/Cabling/Power/+4Pin+Molex+to+PCI-E+6Pin+Adapter?productId=17133

    and this:

    http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=186&products_id=21721&zenid=ed8273e6664c56ff483dcc7979e41d18

    it should work! i hope... haha

    any last pointers?

    also note that the 9800gt only needs one 6 pin cable... so i use one for the 9800, and then use the molex adapter to make another one, and then convert the last 6pin PCI-E into an 8 pin.

    (the only difference between 6 pin adapters and 8 pin is the amount of grounding it has)
  7. You do not need an adapter. Like nomad said, the only difference between 6 pin and 8 pin plugs is the number of ground wires. Each has 3 yellow hot wires. The number of ground wires will not affect the amount of power that the plug can provide.
  8. oh sweet, so i only need the molex adapter. then i will have three 6pin adapters which should run the 5970 and 9800gt!
  9. nomad360 said:
    http://www.aria.co.uk/Products/Peripherals/Cabling/Power/+4Pin+Molex+to+PCI-E+6Pin+Adapter?productId=17133

    and this:

    http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=186&products_id=21721&zenid=ed8273e6664c56ff483dcc7979e41d18

    it should work! i hope... haha

    any last pointers?

    also note that the 9800gt only needs one 6 pin cable... so i use one for the 9800, and then use the molex adapter to make another one, and then convert the last 6pin PCI-E into an 8 pin.

    (the only difference between 6 pin adapters and 8 pin is the amount of grounding it has)

    ok ... you can go for it, it will get your job done..
  10. nomad360 said:
    oh sweet, so i only need the molex adapter. then i will have three 6pin adapters which should run the 5970 and 9800gt!

    yes
  11. Thanks for the help guys :)
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