No one appear in monitor but my desktop computer running and i notice that the led are always green and red .. as i remember every time i open my desktop computer its only got green light .. i try other monitor, memory, hard disk, video card and power supply but it seems that the problem is the motherboard :( can someone help ?? I'll appreciate your help thanks !

Monitor is fubar. Time to go shopping.

If your computer gets to that stage, then I would guess you have an OS ( Operating System ) problem. Try booting from your XP installation CD. If that works then you may have to re-install Windows.

Hi, the computer is under the passenger's seat. Code extraction procedure is pasted below.

READING CODES Modes will not switch while the engine is running. The ECM automatically switches to MODE I when the ignition is switchedOFF.
1984-90 Vehicles With Dual LED System
The self-diagnostic system has 5 modes. To switch modes, switch the ignition ON and use a screwdriver to turn the mode select switch through the access port on the ECM. The inspection lights will begin to flash. When the desired mode has been entered, turn the screwdriver fully counterclockwise. The red LED and green LED perform different functions in different modes.
Mode I-
This is the normal vehicle operating mode. The green LED will indicate loop status. If the green LED is not blinking when the engine is running, the vehicle is in open loop, or the HO 2 S, O 2 S, or sensor circuit has a malfunction. If the green LED is blinking, the vehicle is in closed loop. If a malfunction takes place, the red LED and the MIL will glow, indicating a malfunction has occurred.
Mode II-
Both the red LED and green LED are used to monitor mixture ratio feedback control. The green LED will function as described in MODE I. If vehicle is in open loop, the red LED and green LED will remain on or off. In order for results to be valid, vehicle must be in closed loop. In closed loop, the red LED remains off if the system is running rich, comes on if the system is running lean, and blinks at the same time with the green LED if system is within 5% of the exact air/fuel ratio.
Mode III
-When this mode is accessed, the codes stored in the ECM's memory will be flashed by the green LED and red LED on the side of the ECM. The red LED will light first. This is the first digit of the trouble code; the green LED will flash next, showing the second digit of the code. For example: 2 flashes of the red LED followed by 1 flash of the green LED corresponds to Code 21.
Mode IV-
This mode is used for checking the throttle plate (TP) switch, starter, and vehicle speed switch status. When the TP switch or starter switch is activated, the red LED will briefly flash as the status changes. For VSS status, the green LED will remain off when vehicle speed is less than 12 mph (19 km/h) and come on when vehicle speed is greater than 12 mph (19 km/h).
Mode V-
This mode represents a real-time diagnostic test of the crank angle sensor, ignition signal and the mass airflow signal. The malfunction code will be displayed only when the malfunction occurs and will not be stored in memory. The output code will appear as a single or short string of pulses. Count the number of pulses for the malfunction code.



1 pulse-CMP sensor signal lost or noise in signal 2 pulses-MAF Sensor signal abnormal 3 pulses-Fuel pump circuit shorted or open 4 pulses-Ignition signal lost

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If the tower power LED is a Steady Green and the Diagnostic LEDs on the Back are all Green then the monitor itself appears to be the failure point. See if issue occurs with a different monitor. If the tower LEDs are not all green, then reply with the indications

The red light next to the power button is usuall the hard drive led which should blink every time the hard drive is in use, there is normally a green or yellow light for the power that shoukld stay on constant when the computer is on.

Check the information at Viewsonic's website regarding their warranty:

http://www.viewsonic.com/support/warranties/limited-warranty/

If you have your proof-of-purchase and it shows the monitor is less than a year old, it would be covered. You would need to follow the procedure on their website to have the unit repaired or replaced, but it would not be your job to try to fix it.

have you tried a virus scan

parental control pin codes for the box so the new codes can be installed

Almost certainly an overheating problem. Speed Fan will provide a temperature monitoring solution if you don't have one built-in: http://www.almico.com/sfdownload.php This program will also give you S.M.A.R.T. info. Open the case and look for dust bunnies, especially in the heat sink and fan areas.