Color display is single color due to a bad video card.
Cause:
Bad video card.
Solution:
Replace the video card.
NOTE: This task should be done by a qualified computer technician.
1) Turn off the computer.
2) Unplug the power cables.
3) Remove the video cable from the back of the computer. (removing both connector screws).
4) Remove the computer cover.
5) Touch grounded metal object outside of the computer first to prevent electrostatic discharge damage.
6) Locate the video card and remove the screw holding the video card in place.
7) Remove the old video card by gently rocking card lengthwise out of bus slot.
8) Touch grounded metal object again. Remove new video card from package carefully, handling card only by edges.
9) Holding card by its edges, insert new video card into same slot carefully and press down firmly but slowly until the card is seated into the bus slot.
CAUTION: DO NOT force the card! DO NOT allow the card to touch any other card.
10) Replace the slot screw and tighten screw and card down to chassis (to ensure proper grounding).
11) If installing a different make/type of video card, check the documentation that came with the card to see if any switches or jumpers on the mainboard must be changed. If necessary, change them.
12) Reconnect the video cable to the video card on the back of the computer.
13) Reconnect the power cables.
14) Turn on the computer.
15) Observe the display to determine if the video card is working properly with the display unit.
16) Run Setup, if necessary, to make any changes to CMOS video settings and reboot the computer.
17) Replace the computer cover.
