Help! Red in spectrum missing

[ipaint]

I am pulling my hair out trying to figure this out. Have a motherboard ASUS P5S800-VM which has on board video. The red portion of the vidio signal seems to be missing. Not a real problem as the machine was used for a bussiness. Now it has been retired and will be used for personal use. I figured the on board video was the problem so got a GeForce FX 5500. Installed the new card same problem. Three computers are set up on a KVM Switch. No problems with the other two computers, so I know it is not the monitor. 'Any suggestions would be helpful. Thanks in advance.

 

[IlllI]

maybe its not the mobo or video card.. ever consider maybe its the monitor?

 

[Compton]

I've had this problem with a VGA cable. Apparently some of the wires in the cable were shorting out. If I bent the cable just right, I could get the display to look okay.

 

[Zap]

Try hooking it up using the cable and port of one of the other computers, to see if it is the cable or port on the KVM.

 

[Matthias99]

Originally posted by: Compton
I've had this problem with a VGA cable. Apparently some of the wires in the cable were shorting out. If I bent the cable just right, I could get the display to look okay.

Yep. Either the cable or a port on one side or the other is damaged (usually the cable, since VGA ports are all female and thus unlikely to be damaged.) Try another cable and/or monitor.

If the cable is hardwired to the monitor you can usually have it fixed pretty cheaply at a TV/electronics repair place (or by the manufacturer).

 

[hij0deltiger]

a pin on the cable is probably bent. gad same thing hapenned to me once.