Question about ATI RADEON X1650 Graphic Card

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No signal to monitor

When I install the card and drivers, the computer sometimes boots up to the Vista desktop, but soon begins to reboot repeatedly. Other times (more often than not) after booting up, the monitor displays a prompt saying "NO SIGNAL"

Mainboard : ASUSTek
Chipset: nVidia nForce4
Processor: AMD Athlon 64 5700+ @ 2211 MHz
Windows Vista

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Re: No signal to monitor

  1. Verify card is seated properly.
  2. Check bios settings. ie. disable onboard video, enable PNP OS installed, enable "assign IRQ to vga", disable shadowing and caching, enable passive release, enable delayed transaction, vga boot sequence: AGP, set graphics aperture size to 128MB, disable turbo modes.
  3. Verify power supply is at least 350 watts.
  4. Reboot into safe mode (press F8 right after the BIOS POST screen and before the windows loading screen) and use the program, Driver Cleaner Pro to remove Nvidia video driver remnants. Don't select all of the options, just the Nvidia driver and the plain ATI selection.
  5. Verify the monitor cable is securely connected to both the monitor and the computer.
  6. Verify that you have connected the cable to the vga port on the card and not the onboard vga port. (I'm not implying that you are dumb or anything like that, but sometimes even the best of us, overlooks the simple things... especially me! LOL)
  7. Verify the monitor cable is good.
  8. (Last but not least), try using another monitor to test. (Could be an incompatibility with the monitor.)

Posted on Jan 02, 2008

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