I've been trying to install a video card into my new computer, and the same problem occurs: the computer powers on but the monitor remains dark and displays the message: "no signal". At first, I thought the problem was the power supply. Sure enough, the PSU that came in the computer had an output of 300W while the video card, (GeForce 7600GS PCI-E) listed 350W as a requirement.
I bought a new PSU with a 400W output and replaced the old one. To be careful, I tested it out without the video card installed, and everything loaded up as it should. Thinking that would solve the issue, I tried to install the video card again, but the same problem occured.
However, when I remove the video card and reboot with my monitor plugged into the onboard card, everything works fine. The problem only occurs when the new card is in the PCI-E slot. This also tells me that the monitor works perfectly and isn't the source of the problem.
This also tells me that the problem isn't with the PSU (though the new one is more than the necessary requirements) but with the installation of the card. A quick google of the problem found many instances where people suggested that the card wasn't fully inserted or wasn't firmly fit into the slot. I tried to see if the card is loose but it was set in solidly. There wasn't any room for wobbling at all. The fan on the video card does spin, so I know it is at least receiving power.
I am running Windows Vista on the computer, but that shouldn't be an issue as the monitor doesn't receive a signal on start-up, before the OS even loads. That suggests that it's also not a driver issue, but I was sure to uninstall the previous drivers first.
I've also gone into the BIOS and had it set to detect the PCI-E slot as the default video source, but the same problem occurs no matter which setting was used.
The computer is a dual-core Athlon 4200+ with 1GB of RAM. It has an nVidia GeForce 6150 onboard video card. It has a PCI-E 16x slot. More information on specs can be found here.
Can anyone suggest what the problem might be?
I bought a new PSU with a 400W output and replaced the old one. To be careful, I tested it out without the video card installed, and everything loaded up as it should. Thinking that would solve the issue, I tried to install the video card again, but the same problem occured.
However, when I remove the video card and reboot with my monitor plugged into the onboard card, everything works fine. The problem only occurs when the new card is in the PCI-E slot. This also tells me that the monitor works perfectly and isn't the source of the problem.
This also tells me that the problem isn't with the PSU (though the new one is more than the necessary requirements) but with the installation of the card. A quick google of the problem found many instances where people suggested that the card wasn't fully inserted or wasn't firmly fit into the slot. I tried to see if the card is loose but it was set in solidly. There wasn't any room for wobbling at all. The fan on the video card does spin, so I know it is at least receiving power.
I am running Windows Vista on the computer, but that shouldn't be an issue as the monitor doesn't receive a signal on start-up, before the OS even loads. That suggests that it's also not a driver issue, but I was sure to uninstall the previous drivers first.
I've also gone into the BIOS and had it set to detect the PCI-E slot as the default video source, but the same problem occurs no matter which setting was used.
The computer is a dual-core Athlon 4200+ with 1GB of RAM. It has an nVidia GeForce 6150 onboard video card. It has a PCI-E 16x slot. More information on specs can be found here.
Can anyone suggest what the problem might be?
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