Question about HP Compaq FP5315 15" LCD Monitor

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Compaq FP 5315 Moniter

When turning on the PC, my moniter will flick on and off, the speakers crackle and the standby light flcikers on and off like the moniter is not connected to a pwoer source properly.

I have checked all plugs and sockets and they are fine.

the only way to  get the moniter working is to unplug it and switch of the computer. wait 10 around minutes and then plug it in.

However this somethimes doesn't work and the moniter often starts to flicker on and off if there is a lound sound through the in-built speakers or if i run a full-screen program.


What is wrong with the moniter and how can i stop this from happening?

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Re: Compaq FP 5315 Moniter

Have you checked the computer bios?


In case an item was changed in the BIOS, such as the primary display device setting, use the following steps to reset the BIOS back to its default configuration:
  1. Turn on the computer and press the keyboard key that enters the BIOS Setup screen key when the keyboard light comes on. The key to enter the BIOS should be one of the following:
    • HP and Compaq desktop computers that came with Windows Vista, press F10 .
    • For HP Pavilions desktop computers that came with Windows XP or previous versions of Windows, press F1 .
    • Compaq Presario desktop computers built after 2002, press F1 .
    • Compaq Presario desktop computers built prior to 2002, press F10 .
  2. Wait 5 seconds.
  3. Press the F5 key to restore the default settings of the BIOS.
  4. Press Enter to accept the change and wait five seconds.
  5. Press the F10 and then the Enter key to save the changes and exit from the BIOS.
  6. The monitor should now display the first screens received from the computer (the logo screens). If not, find and download the latest BIOS update if one is available for your computer.
  7. If a BIOS update was not available or the monitor is still blank, continue to the next step

Reseating loose internal components

If the PC case was recently serviced or moved, a card, cable, memory module, or processor may have become loose. When this happens, the PC might make a beeping sound when turned on. Use the following steps to check for loose components: WARNING: The edges of metal panels can cut skin. Be careful not to slide skin along any interior metal edge of the computer. CAUTION: This product contains components that can be damaged by electrostatic discharge (ESD). To reduce the chance of ESD damage, work over a non-carpeted floor, use a static dissipative work surface (like a conductive foam pad), and wear an ESD wrist strap connected to a grounded surface.
  1. Unplug all cables except for the power. Write down each cable location if you do not already know where it connects.
  2. With the power cable removed press the Power button on the front of the PC for 5 seconds.
  3. Remove the screw(s) that retain the panel or cover from the rear of the PC. c00371492.jpg
  4. Slide the side panel off from the rear of the PC. c00371493.gif
  5. Gently press down on the outside edges of cards and memory modules that are inserted into the motherboard to better seat them. Do not press too hard.
  6. Gently press down on the connectors of the flat ribbon cables to seat them.
  7. Replace the side panel and screw(s), reconnect the PC cables, and turn on the PC on.
  8. If the monitor still displays a black screen, the video hardware may be faulty and needs to be replaced or serviced. If the monitor displays the first startup screen but does not display Windows, continue to the next step.

Try this and if it doesnt work. please post again.

Posted on Oct 21, 2007

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Hello First of all you need a sound card on your computer with a Spk. (Speaker) or Phones (headphones) Out Jack it might be a symbol of a small speaker or headphones. You have to be sure you are getting a actual sound output signal from this sound card too. If the sound card is not working your moniter speakers would not have a signal to drive it. You also need a 1/8" Stereo 2 male stereo plugs on both ends, one end plugs in back of moniter other plugs in back of computer like I mentiond above. Make sure your Mute button is not selected on your computers volume button usally at bottom right of screen. Make sure the volume buttons are up to aprox 3/4 up also. Then for last on the moniter look in the menu i think you might have to keep pressing the menu button but i kind of forget now but its a Spk setting and volume setting in this speaker setup within the moniter as well make sure this is turned on and set at a higher volume level as well. Thats about all I can say without taking the moniter apart and checking the jack and wires and speakers. I would suggest you take it to a electronics or a tv repair or computer repair person to go any further then this. Hope you take time to read all of this I tried to put every step in here to help anyone out with this problem. Thanks for reading. Ken T

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