Question about ASUS P4S800-MX Motherboard

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No dispaly Hi there, there is no display on my monitor screen (screen black, light amber). when I press the push button to turn on computer at the front panel of the computer case (after pressing main on/off button at the back of the computer case), computer turns on with a music beep and stays on but I do not see any thing on monitor screen (screen black, monitor light amber). After turning on, I can see on computer case's front panel display, cpu temperature 30, psu temp 29, hard disk working (all normal things) but nothing on monitor screen. And I noticed that two very thin cables coming from front side of the case one with tag 'cpu' and other 'vga' were connected to motherboard's SiS 661 FX north bridge were out as well.there is on-board integrated video and audio and there is no pci and agp cards installed. computer specs are windows xp professional service pack 2 asus P4S800-MX mother board Intel Celeron Pentium 4, 2.48GHz processor 512 mb ddr ram (one stick) form factor Micro ATX On Board Graphic Processor SiS 661FX I really appreciate your time, please solve my problem. Thanks

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  • gandasa Apr 14, 2008

    hi

    memory is in first slot, took out and put back in but still the same problem.

    i used the same memory in different working computer (hp d530 CMT) and same happen to that computer (no display).



    please help

  • Qtrx May 11, 2010

    hi i have the same problem. no signal going to my monitor.
    heres what i have done so far.
    i have tried using same model PSU as a replacement, and still no signal to monitor.
    HD is okay, PSU is okay. now, when i turn it on, chipset fan turns on, HD runs, almost everything is normal.. but no signal is going to my monitor..
    help!!
    i have tried using a different monitor already, different HD, d/c'd connectors on HD, optical, floppy, one at a time, still.. no beeps to at least give me an idea what the problem is.


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  • 472 Answers

The 2 extra wires will most probably be temperature sensors.
If your using the onboard video, then make sure you have memory in the first DIMM slot (it will say DIMM1 beside it)

If that dosn't solve the problem then try these:

  • Remove the memory and reseat it. Make sure to put it back in the correct way. There is a notch towards one end that will match the notch of the memory slot. Press it in until the 2 clips lock fully, then give it a gentle wiggle side to side while pushing down still.
  • Listen to the beeps your computer makes when starting up. A single short beep is what you want to hear. If you hear. If you hear something else then post back what it does. There are long and short beeps that could be involved.
  • Disconnect all the IDE cables from the back of the drives. You can leave the power cables connected. When they go back in they also have a notch and can only go in one way.
Try those for a start and post any progress you make. Also just double check the video cable is correctly attached at both ends to the computer and to the monitor.

Posted on Apr 10, 2008

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Slide the battery latch to eject the battery. Pull the battery out of its compartment.

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Wedge the edge of the keyboard bezel off of the top cover. Work your way along the edge of the keyboard bezel to loosen it. Pull the bezel off the laptop.

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Turn the computer back on. If the laptop screen is still blacked out, connect an external monitor to the video port on the side of the PC to confirm that the video card isn't defective. If the external monitor works, the LCD screen could be broken.
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hope this helps



A blacked-out screen doesn't necessarily indicate a broken monitor.
If the computer has run out of charge or is in hibernation or sleep mode,


if the screen is too dark, or if the display cable has come disconnected from the motherboard, the screen may appear black or fail to turn on.


To fix a blacked-out laptop screen, troubleshoot the screen settings, check the LCD connector and see if the computer is awake and receiving power.


Touch the touchpad or move the external mouse to see if the computer is asleep or hibernating. If the computer fails to respond, press "Enter" on the keyboard.


Press the power button if the screen remains black.

Confirm that the power indicator light, found at the front of the computer or above the keyboard, is glowing solid green or blue.


Confirm that the power adapter is plugged into the computer and into a wall outlet. Confirm that battery indicator light is glowing solid green or blue.


Hold down the "Fn" key. Press the up-arrow to see if the screen brightness increases.
Some computers also use the "F6" or "F7" keys to increase screen brightness.


Hold down the power button for 10 seconds to turn off the laptop.
Remove the AC adapter from the computer, close the screen, and then turn the PC over.


Slide the battery latch to eject the battery. Pull the battery out of its compartment.


Turn the computer back over, open the lid, and insert the edge of a flathead screwdriver or other flat, solid object beneath the bezel above the keyboard.


Wedge the edge of the keyboard bezel off of the top cover.
Work your way along the edge of the keyboard bezel to loosen it.
Pull the bezel off the laptop.


Trace the cable coming from the laptop screen to the connector found beneath the bezel. Reconnect the display cable to the motherboard if the cable has come loose from the connector.

Line up the tabs on the bezel with the slots along the top of the keyboard. Insert the right edge of the bezel into the gap above the keyboard, and then push the bezel back in place.


Turn the computer back on. If the laptop screen is still blacked out, connect an external monitor to the video port on the side of the PC to confirm that the video card isn't defective.

If the external monitor works, the LCD screen could be broken.

If the monitor doesn't work, the motherboard or video card might need to be replaced.


Hope this helps





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For a majority of laptops, there isn't a control for setting the contrast.


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