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Installing 8800 gts on hp computer

Last response: in Graphics & Displays
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February 28, 2010 7:35:52 AM

I had a spare EVGA 8800GTS that I was trying to install on my father in laws HP pavillion. Its the m7580n model. I put in a new power suplly (450 watt 24A 12v rail) and its running (fan and all) but PC is not detecting it.

I uninstalled the old card that was in it, went to set up and changed video to PCI-E and nothing. It had a GeForce 7300 LE card before, when I uninstalled it and tried to put the new 8800 gts drivers it installed the onboard 6150 LE for some reason. What steps should i take next? PSU should be plenty of power for it, just dunno what I need to do next?
a b U Graphics card
February 28, 2010 11:24:59 AM

Before you took the old card out, you should have uninstalled the drivers, and reinstalled the standard Windows VGA drivers. Now, it makes no sense when you say that the card does not work, because it installed the drivers for onboard video. How in the world did you boot into Windows and install drivers if the card was not working.............
Anyway, I don't understand exactly what you have going on right now, but here is what you should have done.
1. Uninstall the current drivers, and install the standard Windows generic VGA drivers.
2. Delete or remove the old drivers from the system completely using the add remove programs, or a program like driver sweeper.
3. Reboot to the BIOS, set the BIOS to look first for the PCIe slot for the GPU.
3 Shutdown, remove old card, install new card, boot, install new drivers.
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February 28, 2010 6:24:53 PM

I first uninstalled the 7300 le that was on the computer (had all ready been physically taken out). I deleted the nvidia drivers from add/remove programs. After uninstalling all that I reset the computer, put in the new 8800 gts, tried to install it with said drivers and after the drivers installed I reset again. When loading it up it did not detect the 8800 gts instead it installed the onboard 6150.
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February 28, 2010 6:46:22 PM

Ok I started over and followed the directions ( I think) of what to do. I turned on the PC, uninstalled the nvidia display drivers through add and remove programs. Installed standard windows vga drivers. Rebooted into BIOS (was all ready checked to start with PCI-E). Physically installed the 8800 gts and restarted plugged into the 8800gts and I have a black screen monitor. The computer is on and running but no video.
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