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CPU powers on but monitor shuts off

I would like to take the necessary steps you provided for me buy is there a layout of the motherboard so that i can find the video card for my HP Pavilion 7940 desktop pc?

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Time of this report: 3/24/2006, 22:21:35
Machine name: HP-PAVILION7940
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_gdr.050301-1519)
Language: English (Regional Setting: English)
System Manufacturer: 00101680 7940
System Model: 15515700051231
BIOS: Version 2.09
Processor: Intel Pentium III, ~1.0GHz
Memory: 254MB RAM
Page File: 139MB used, 294MB available
Windows Dir: C:\WINDOWS.0
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.2180 32bit Unicode
it seems that your desktop is an asus motherboard. as shown above, that is an AGP. you can buy an AGP video card

Posted on Aug 01, 2008

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Posted on Jan 02, 2017

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Monitor screen is black but computer seems to work


That is not enough info, please provide more info so people can understand the issue better. For example, describe what you do and see step by step. When you turn on the machine, after a few seconds it powers on, it should run Power-On-Self-Test (POST) which will end with a beep telling you everything was OK. If you do not hear any beep, the problem is likely to be inside the case, bad video card, motherboard, CPU, etc. Typically bad RAM or Video card will cause a series of quick or long beeps (different for each motherboard) to indicate where the problem is. Bad CPU generally do not generate a beep code and most motherboards also do not give out a beep for motherboard issues, naturally.

If you hear that beep but see absolutely nothing on the screen from the moment you turn it on, then check to see if the status indicator light (assuming it has one) changes color or not:

A) If the light on the monitor changes from red/amber to blue/green but you see nothing on the screen then either the video resolution and/or refresh rate is unsupported, video drivers are faulty or monitor itself is bad.
B) If the light goes back to red/amber or stays that way from get-go, then there is no connection, monitor cable is loose at either end or bad/supported.
C) One other possibility would be the input selection on the monitor which is set to "Auto" by default but if it was manually changed to DVI for example and you are now using a HDMI cable, monitor would not automatically change this setting thus not receiving the signal from the video card. You can check this using the menu buttons on the monitor itself.

This is a generic troubleshooting ideas I just shared, more details you can provide, the better people will be able to assist you.

Nov 21, 2013 | Dell Dimension XPS 400 PC Desktop

Tip

How to tweak your computer


Step 1
Back up important files. This includes impotant datas stored on your computer
Step 2
Update the firmware of your computers BIOS. Also update or patch your OS to the lates update and even your hardware devices must be updated as well.
Step 3
Also before proceeding ,remember to get a BENCHMARK test program that will help you see the changes and also monitor the temp. of your processor after overclocking
Make sure that your BIOS is also set to shutdown once illegal voltage or temp. will be detected
Step 4
Ensure that the CPU FAN is clean and is still calibrated to the right rpm
Step 5
Power on your unit ,hit the hotkey to access setup.On the BIOS go to ADV. CHIPSET option.Then look for"clocks, "frequency/voltage control" or "voltage options." This will look unique on each brand of computer.You can overclock by modifying "CPU bus frequency" or "CPU FSB frequency." Increase this value slightly. In some cases, you will be able to increase your "CPU multiplier" through the BIOS.If your BIOS has none of these options,your motherboard is not capable of overclocking the processor.
Step 6
You can also try overclocking your MEMORY AND VIDEO speed. Some motherboards have this options on the BIOS as well
Step 7
You can consult your motherboards manual to know the operating voltage of your cpu or type in the model of the board on yahoo or google.

on Dec 19, 2009 | Computers & Internet

1 Answer

My tower is plugged in and the monitor is plugged in but my windows will not show up on my monitor. It says to hit a key to get out of power save but wont do anything


1. Swiched CPU power off (But Monitor on - though blank )
2. Removed motherboard battery(its like a watch battery but quite bigger)
3. Then Swiched th CPU on
4. On screen message ( the I pressed F1 on the keyboard) .
now see what happen.

Aug 15, 2012 | HP Computers & Internet

1 Answer

Monitor Going To Sleep If Powered On


It means your system is not able to Provide Display to your monitor.
You may try the following steps to troubleshoot display problem

Here are the Few steps which you can do by yourself to bring back the display(if your Luck is GOOD:D )

1step-
Open the Case and check if RAM is properly fix.. just take out the RAM, Clean it and fix it back properly.

2step-
search for CMOS battery on the motherboard.. just remove it for 10-20 seconds and fix it back.

3-step
Remove the CPU Fan and CPU and Fix it properly.

It happen when you shift your PC from one place to other.
ALL the best and if it works than please give ranking.

Aug 02, 2012 | Acer Aspire (AST180-US340B) PC Desktop

1 Answer

Monitor Going To Sleep


It means your system is not able to Provide Display to your monitor.
You may try the following steps to troubleshoot display problem

Here are the Few steps which you can do by yourself to bring back the display(if your Luck is GOOD:D )

1step-
Open the Case and check if RAM is properly fix.. just take out the RAM, Clean it and fix it back properly.

2step-
search for CMOS battery on the motherboard.. just remove it for 10-20 seconds and fix it back.

3-step
Remove the CPU Fan and CPU and Fix it properly.

It happen when you shift your PC from one place to other.
ALL the best and if it works than please give ranking.

Aug 02, 2012 | Acer Aspire (AST180-US340B) PC Desktop

1 Answer

When i turn on the computer, the fan keeps spinning and making noise and the monitor is black screen. i tried many ways to resolve it but unsuccessful.


If your monitor is black but everything is still spinning, first off if you have opened up your PC check for certain if everything is connected again properly (especially the 4 pin connector near the CPU) and also the cable to the monitor and the monitor's power cable of course.
First of all try to connect your monitor to another device and see if it works. If it does not then your monitor is broken. if it does, let's go to the next step.

If everything is connected properly inside the PC, the odds are very high that your CPU and/or motherboard are broken. If possible try replacing the CPU and motherboard with another one if you have one lying around. If you don't you can either buy a new CPU or motherboard or if you want to take the more simple way, which is actually more recommended, go to your local PC shop and have your PC fixed.

Jul 24, 2011 | HP Compaq Presario SR2030NX PC Desktop

4 Answers

Monitor will not stay on, shows ''NO SIGNAL'' and then 'MONITOR GOING TO SLEEP''; CPU seems to be working - all this happened after an electrical storm. Computer hooked to surge protector. Can not access...


Oops, these surge protectors don't always give you the protection you need. The trouble is this could be one of many things, what you are hearing is the fan cooling the cpu. But this is good news as it means your power supply and motherboard are OK, the bad news is finding what has gone; the only way is for a computer shop to run diagnostics and replace the part necessary. Otherwise I could advise you to replace a part, get it wrong and causing you more expence!
Sorry this not a straight forward answere.

Jul 26, 2010 | Compaq Presario 5000 PC Desktop

1 Answer

Every time i turm my computer on the monitor comes on and then says going to sleep the computer shuts down will not stay on. I can"t do anything, it keeps shutting down and the monitor shuts down.


this is a computer problem not a monitor problem whens the last time you cleaned out the computer as in air blasted to clean out any dust if the power supply over heats this would cause a shut down the other thing would be a problem with the mother board open case look at the stuff inside and see whats dirty cpu, power supply , motherboard dust a #1 killer of motherboards

Dec 10, 2009 | HP Media Center M1050Y PC Desktop

1 Answer

CPU powers on but monitor shuts off


if you are using a video card try to remove this and clean the contact points(bronze color) because the contact of this to the slot of the mother board is too slim and this causes no signal for the monitor. while if you are using an on-board video card there is already a problem with the slot or thry to inspect the cord and pins if no deformities. if you think there is no problem with these then you need to buy a video card prior from this you must try to see the specs according to the motherboard manual because we have different types of videocards

Jul 30, 2008 | Computers & Internet

2 Answers

Installed new Power supply, Monitor stays in standby...? So I noticed my fan was starting to go out, then it actually went out, my power supply would start to over heat and the cpu would shut itself...


Your problem is either the processor or the motherboard. that is why your monitor is not getting any signal. first try to replace the processor because I suspect that this might be the problem as it has gotten overheated before. if there was a power problem with you power supply you monitor would not power up at all.

Jul 10, 2008 | Computers & Internet

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