Can I install the display driver by overwriting?
No. Make sure to uninstall an existing driver before updating it or when adding/
removing cards, or changing slots, and reinstall it.
The new graphics card doesn’t get recognized as new hardware.
Check the followings:
• The graphics card is not inserted all the way in the slot.
• An older version of the display driver may have been installed. Uninstall the existing
driver before installing the latest one.
• A non-NVIDIA card may be conicting. Remove it.
• Check Device Manager. If the Other devices section shows “[!] Video Controller
(VGA compatible),” the graphics card is detected. Install it from there.
The graphics card I installed doesn’t get recognized.
Conrm that the card is inserted all the way in the slot, and a proper graphics card
and/or a display driver is installed. If another graphics card coexists, remove it.
I can’t install the display driver when another graphics card coexists.
Remove another card once, insert this card, install and setup the display driver. Now
remove this card, insert another card in another slot, install and setup a display driver.
Put this card back into the slot where it was inserted. (In Windows XP only.)
The computer freezes at the Windows startup screen when restarting after the driver
is installed.
This happens when another graphics card coexists. Reinstall cards according to the
instructions above. (In Windows XP only.)
When I add another card after setting up this card, the computer freezes at the
Windows startup screen.
Remove this card once. Insert another card in another slot, install and set up a driver,
and put this card back into the slot where it was inserted.
The display blacks out during driver installation.
Wait for a while.
Any other measures for multi-display-related problems?
Try the followings as measures.
• Use the CMOS switch if the computer has one.
• Set the system BIOS from VGA boot to PCI primary.
• Share the same IRQ with all graphics cards.
• Install cards one by one.
• Check the card for the secondary display if it can be used for a secondary display.
• Update the computer motherboard BIOS.
• Use the latest chip set driver on the computer.
• Update the driver for another graphics card.
• Disable the on-board VGA in the system BIOS settings.
• Use a different slot.
• Remove PCI cards such as sound card.
• Change the driver version.