monitor does not turn on

December 3, 2012 at 04:01:26
Specs: Windows XP, 512 MB

recently i have installed 500 GB hard disk its working fine no problem but when i restart the computer the monitor wont turn on.

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December 3, 2012 at 04:19:26

OK just to clarify the issue the system boots properly when you start up from "OFF" state but does not if you try a shutdown/restart.

Does it give a BIOS boot beep when you start from cold ? Do you get the same beep or not when doing a restart?

Goin' Fishin' (Some day)

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December 3, 2012 at 04:39:11

Post the model number of your computer.

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December 3, 2012 at 06:13:33

there is no problem when i start the computer from off state the problem only occur when i try to restart it and i dont get any beep sound.

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December 3, 2012 at 06:14:37

my computer model number is hp pavilion a1120in i am using windows xp with 512 MB ram

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December 3, 2012 at 07:07:34

HP Pavilion a1120in specs:

"i have installed 500 GB hard disk"

Is it a storage drive?

"i am using windows xp with 512 MB ram"

This isn't the cause of your problem but you should seriously consider adding more RAM, a LOT more RAM. Your system has 4 memory slots & can accept up to 4GB max (1GB per slot). If you have 2 slots available, I recommend added 2 x 1GB to bring the total up to 2.5GB. And if you're still using the crappy onboard video, I suggest you install a video card too. Unfortunately it looks like your board only has standard PCI slots - no AGP, no PCI-express.

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December 3, 2012 at 09:36:17

So you don't hear a beep when using the restart option. Does the computer restart or not?

Are you actually restarting, or switching users?

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December 3, 2012 at 12:00:52

The reason I asked about the POST beep is that I have a machine that exhibits a very similar problem. It will start up from cold every time. Gives a single POST beep and fires right up. It will stay running indefinitely, But after it has been running for a while it will not re-start. After the shutdown sequence, the drive LEDs will flash and the power led is lit but there is no POST beep and nothing on the display. The only way to get the machine going again is to press/hold the power button until it shuts off, wait a while for it to cool down then start up again from cold. I have not been able to isolate whether the problem is in the powersupply or motherboard. I suspect it is the latter.
I suspect a poorly contacting joint that opens up when warm preventing bootup.
If you have a similar issue then the only certain cure involves a replacement motherboard.

Goin' Fishin' (Some day)

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December 4, 2012 at 02:31:59

no i did not hear any sound. i am restarting not switching user

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December 4, 2012 at 03:32:53

You did not answer if the computer restarts or not.

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December 10, 2012 at 07:53:21

yes the computer restarts after that the monitor does not turn on

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December 11, 2012 at 17:16:49

How do you know the computer is restarting if there is nothing on the display? Do you hear the Windows startup theme? What kind of monitor is it? Can you press the button on the monitor to bring up it's on-screen control adjustment graphic? The specifications for your system indicate it has graphics integrated in the motherboard which has only 3 PCI slots. It has no separate AGP slot or PCIe for a graphics card.

If you can verify that windows is actually booting up, and that the monitor itself is not the problem then that leaves only the integrated graphics in the motherboard.

Due to the age and limitations of that system it isn't worth spending much if any money on it but if you can obtain a PCI graphics card for cheap then you might be able to resolve the issue. you will be looking in second-hand market for something in a PCI graphics card with drivers available for XP. Do not get your requirements mixed up with PCIe which is more recent technology and not compatible with your system.

Goin' Fishin' (Some day)

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