PC has no video

[=?GB2312?B?tPOdaMPx1+U=?=]

My PC lost its video, the monitor shows nothing at all, but the PC seems
running normally, since I can not see the screen, I am not 100% sure,
but all the signs show normal.

The monitor is checked ok with another PC, and the video card in the
problematic PC is switched, same result.

I have built PCs for years, this is the first time that I encounter such
a strange problem. Gurus, help please.

The PC is 4 years old XP.

 

[JAD]

using PCI or AGP? try the opposite of whats failing.

 

[Dave]

My PC lost its video, the monitor shows nothing at all, but the PC seems
running normally, since I can not see the screen, I am not 100% sure,
but all the signs show normal.

The monitor is checked ok with another PC, and the video card in the
problematic PC is switched, same result.

I have built PCs for years, this is the first time that I encounter such
a strange problem. Gurus, help please.

The PC is 4 years old XP.

Unplug computer. Remove battery (CR2032 probably) from mainboard. Move
cmos jumper to CLEAR position. Run to drugstore or wal-mart or radio shack
to buy a new CR2032 battery. After you have a new battery, move cmos jumper
to normal position and install new battery, + side up. Then plug in
computer and boot normally. If that doesn't work, try a new power supply.
If resetting cmos and new power supply didn't work, you are probably looking
at a bad mainboard. -Dave

 

[OSbandito]

My PC lost its video, the monitor shows nothing at all, but the PC seems
running normally, since I can not see the screen, I am not 100% sure,
but all the signs show normal.

The monitor is checked ok with another PC, and the video card in the
problematic PC is switched, same result.

I have built PCs for years, this is the first time that I encounter such
a strange problem. Gurus, help please.

The PC is 4 years old XP.

¥Ûùh*Ò*Â, Did you try a known good monitor with the problem machine
using a different cable?