9800 GT won't work with my Dimension E521

Hello, I think my PCIe slot is dead, because the computer won't detect my 9800 GT. I'm upgrading from the default Nvidia 6150LE motherboard. When i tested the graphics card on a friends computer, it worked perfectly fine. I've disabled the 6150. Do you think it might be the power supply? The fan is spinning, but i cant see a reason as to why my computer won't detect the new graphics card. My monitor's VGA only works when plugged into the motherboard as well, since it can't detect the graphics card. Any recommendations as to what i should do?
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More about 9800 work dimension e521
  1. I tried disabling the 6150LE from device manager and changed the BIOS to auto.
  2. So, what is your PSU? brand? model?
    Usually, let BIOS set to AUTO, it will detect the card automatically...
  3. its the Dell 305w unit. I actually ran a 9800GT off the exact same PC. Did you connect the 6-pin power connector or is it a 9800GT EE?
  4. Yeah it is the 305w unit, the BIOS was set to auto, the 6pin connector was connected as well, and the fan was spinning so it shouldn't be a problem with not enough power. I tried the card in my friends computer and it worked fine... I think my slot is dead :O Any advice? New MotherBoard? :/
  5. Its just a 9800 GT PCIe 2.0. computer is a stock Dimension E521 with some extra ram
  6. Do you have a pci e2.0 slot??? if not then you need atleat a 400W PSU !!!
  7. mmmikeal said:
    Yeah it is the 305w unit, the BIOS was set to auto, the 6pin connector was connected as well, and the fan was spinning so it shouldn't be a problem with not enough power. I tried the card in my friends computer and it worked fine... I think my slot is dead :O Any advice? New MotherBoard? :/


    that's a BTX motherboard. any chance you could try another video card? if it was a power issue, your PC would state so when you booted. I think i actually have that mobo lying around in a box.
  8. raiyus13 said:
    Do you have a pci e2.0 slot??? if not then you need atleat a 400W PSU !!!


    1. PCI-2.0 is backwards compatible with 1.0
    2. that DELL PSU has as many amps on the 12v as most generic 400w including several from those lovely companies that make cases & PSU.
  9. I put in a Radeon x1950 Pro into the PCIe 2.0 slot and it worked. The computer detected it right away. Could it be the computer has trouble detecting the 9800 GT because the motherboard has a Nvidia 6150LE? both Nvidias? bleh no idea
  10. Did you uninstall the Nvidia drivers before you first tried the 9800GT?
  11. yes, but when i restarted the computer, there was like a little message on the bottom right of the taskbar that said located drivers, installing... so i think it might have reinstalled them
  12. like, reinstalled them after i had just uninstalled them o-o
  13. mmmikeal said:
    yes, but when i restarted the computer, there was like a little message on the bottom right of the taskbar that said located drivers, installing... so i think it might have reinstalled them

    That little message usually also tells you which graphics adapter it has found and is installing the drivers for.
  14. the whole time my computer still never detected the 9800 GT, im just gonna give up and use the radeonx1950pro i got. Thanks for the help guys
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