I had a PIII 450 hp system with hp 15" color monitor. I recently upgraded it to AMD sempron 2500+ with ASUS mother board. I installed win xp Media center edition. I work with the system for some time(random) and shut down it. It takes 10 minutes for the monitor to get signal from cpu. If I swith on the system before 10 minutes light on the cd drive flashes and fan is working but immediately the system shuts down. The ctrl+alt+del,and restart from windows(warm boot) works just fine. I use the mother board with newer monitors and it works just fine. I have no clue as to why this unusual behaviour? I know the problem is in the monitor but do not guess exactly what is wrong? Please help.
205494
How old is the 15" monitor?  If it is an older monitor, there may be a bad/loose connection in the cord that connects to the computer.
377013
In my experience, this usually indicates the CPU fan is not working properly and with Dell machines the issue isn't the fan itself but rather the system board to which the fan is attached to.  you'll have the replace the system board the resolve the issue
579083
Did you have a power outage?  Surge perhaps?\nSomething took out the power supply right?\nIf you aren't getting any kind of beep code or anything and everything seems to be reacting normally.  The very first thing I would do is check to make sure the monitor didn't get toasted!\nAlways verify the monitor isn't fried before you go to the MB and other internal parts of the pc for troubleshooting a video related issue.  Did you get responses from the hard disk, or cd rom after the power supply was replaced?
44436
It could be many things.... start by disconnecting  your Hard Drive... if it still restarts and does not let you stay in the bios try a new Power Supply... if persist its most likely your motherboard... make sure to disconnect  everything else...
552018
First go to control panel > Power Options > Power Schemes > Settings for Home/Office Desk Schemes  and check whether you have activated any auto turn off for HDD or Monitior (say after 10 minutes). \n\nCheck whether you have activated any screen server which gives you a blank screen after certain amount of time.\n\nIf it is not this please make sure your data cable, mouse cable and keyboard cables are properly connected to your system. \n\nMake sure that no automatic shutdown tasks is created earlier.\n\nAlso run a virus scan so as to make sure that there is timer based viruses which activate them selves in a sp. time.
552191
What you are in need of is called a Bios Debug Card.  You can get a cheap one from Soyo at http://www.geeks.com  Is your CPU fan plugged in right?  Most newer boards will not start up if that is not working.  If it is working when you power up, but are not getting any video the video card may be bad.  If nothing is working but you are getting beeps on Boot, then the RAM may be bad.  A good rule of thumb is to try using only the main components (video RAM Hard drive) and get the system running first.  Then start adding other components (sound network modem etc) after it is running.  This helps stop any conflicts from happening when you first try to get a system running.  Hope this helps
554178
You're not getting anything on the monitor either?  My guess is that the power supply's shot.  With a dell, you may be screwed.  Many, if not all Dells use proprietary (made by Dell, for Dells) hardware.  Power Supplies are one example of that.  \n\nAnd power supplies are like lightbulbs; they don't crap out just at random, but rather right after they're turned on.  You know what I mean, right?\n\nFirst, make sure that all the right cables are in place inside your machine.\n\nCrack open your PC, making sure everything's unplugged beforehand.  Since every PC case is different, it may be screws holding it together, or on dells, it's often kept closed by a couple tabs that click into place when it's closed.  When you have it open, hold onto a metal part of the chassis to discharge any static electricity from your body that could damage your computer.   Anyway, just take a look around the motherboard to see if there are any cables from your power supply that are loose.  If you're not sure about where the other stuff goes, just make sure that nothing's loose.  You can let go of the case now (it's not that crucial when you're messing around with the cables, but it's just another precaution)\n\nIf everything's plugged in, try turning it on again and see if the fan on the power supply is moving.  If it isn't, then your power supply's gone to computer heaven.  So here's what you do now:\nUnplug your power supply from the wall and all of the stuff inside your computer.\nTake a screwdriver and undo the 4 screws on the back of your computer that are holding your power supply in place.  (Make sure you're hanging onto the power supply with your other hand, otherwise your it may come crashing down and send your graphics card, sound card, or network card to computer heaven also)\n\nNow, I'm not sure whether dell still uses proprietary power supplies, but if they do, here's what you do:\n\n Go to your friendly neighbourhood used computer store with your former power supply, and ask whether they have a power supply with the same connectors.  It shouldn't cost that much.\n\nIf they are starting to use standard power supplies, then you're in a far better situation.  When you buy a new power supply, make sure all of the connectors match, just in case.  Also, don't scrimp when it comes to your power supply.  A low end power supply will provide your computer with power.  A good power supply will provide your computer with clean, consistent power.  How to tell which is a good power supply?  2 simple ways:  The price and the weight.  A 25 dollar power supply that weighs only 300g is not what you're looking for.  A 75 dollar power supply that weighs 2 kg is almost certainly better.  I know it seems like a crude method, but still, it works.  Sorry for being long-winded, but I like to be specific.\n\nAlso, if at any point you're not confident that you can do it, by all means take it to a professional.  It may cost more than doing it yourself, but it's still cheaper than if you happen to blow it royally.\n\nGood luck.
554527
Brand names really don't make much difference.  Sounds like the computer needs a new video card.  Perhaps the light setting dial under the monitor may have been moved to dark also.  Hoope this heps
304653
There could be issue with the Power Management. I recommend you reinstall Power Management from Device Manager.\n\nTo reinstall Power Management, take the following steps: \n\n1. Click Start, Control Panel, Performance and Maintenance, and then System icon. \n2. This opens the System properties window. \n3. Select Hardware tab and click Device Manager. \n4. Click "+" beside System devices. \n5. Select ACPI Power Button. \n6. Right-click the device and select Uninstall. \n7. Restart the system. \n\nPower Management will get installed automatically on restart. \n\nIf the issue persists try checking for any BIOS update.\n\nAlso, you can use the following link which will help you perform some troubleshooting steps. It is from HP web site. But it has good troubleshooting steps. Try it out. Here is the link :\n\nhttp://h10025.www1.hp.com/ewfrf/wc/genericDocument?cc=us&docname=bph07147&lc=en\n\nHope it will resolve the issue.
114481
if you have NO screen activity (ie no cursor, or post test) then your problem is probably video card or mother board related. you most likely will not be able to fix this yourself. take the tower to your favorite tech for diagnosis. the diagnosis shouldn't cost much more than thrity dollars US. the down side is you may be paying 30 bucks to find out your motherboard is fried and you need a new computer.\n\nsorry about your dilema.\ni hope im wrong\ngood luck
563233
Your computer is too old.\n\nFor your comp to power off it must have an ACPI compliant motherboard.  You might be able to flash your mobo with a BIOS update that will provide that, but that's unusual as ACPI requires more BIOS memory than most non-compliant boards have and is also limited to ATX and later mobos.\n\nACPI stands for Advanced Configuration and Power Interface.  It's a BIOS enhancement that was introduced with the ATX factor motherboards.  All motherboards since then have had the feature.  ACPI provides for the auto power down of your machine when you shut down Windows (or any other ACPI aware OS) as well as improved power management capabilities.\n\nThere were also a few cheap mobos several years ago that were advertised as ACPI compliant but were too buggy.  When Windows is installed, it checks the BIOS.  If you're unlucky enough to have one of the buggy ones, Windows installs the Standard PC HAL (hardware abstraction layer) not the ACPI HAL.  This is to prevent data loss due to the buggy BIOS.  The Standard PC HAL won't allow auto power off even if the mobo is ACPI compliant.\n\nThere is no fix for this, you need to replace the motherboard with an ACPI compliant unit.  Given the age of your machine, you'd be better off buying an new one or building a new one from scratch.
494527
Check your Cmos setup, if there is no setting for the fan, then i would not worry about it, it better to be cool than hot....It must be a Dell, just joking.....they have the most complaints....
513169
Could be a number of things, such as:\n\n1) The power supply could be going out\n\n2) Computer may just be overheating\n    * Clean off all the vent holes & circulation fans on the PC tower\n\n3) Could be a short in the outlet, or cable\n\n4) Virus activity\n\n5) Hardware devices may be incompatible\n\n6) Motherboard is going bad\n\n\nIf it shuts off shortly after you turn it on, then it is most likely hardware-related.\n\nBut, if it shutdowns only after you have been on it for awhile, it is most likely overheating or virus-related.\n\nGood luck!
565530
ur monitor might be out dated. I had a ol packard bell monitor that took 30 min to warm up and then it was blurry and all messed up becasue of it's old age.
510865
This sounds as if your power supply on the PC itself went bad.  Especially if you have checked all your power connections, and you are still on getting power to your system.  \n\nyou may need to contact E machines and see if your system is stll under any warranty.  If you have any Geek friends, have them check it out to make sure its the power supply, and not the motherboard, memory, and/or processor.
604147
Quite possibly it is because the power supply is overheating, and the outside power supply fan should ALWAYS run. Since it is not there is definitely a problem with the P/S. I have found that the three major causes of unexplained reboots are due to faulty power supplies, RAM failure and general overheating that is not due to technical failure.\n\nYou might be able to buy a power supply testere for about $15 at your local computer store (Radio Shack MAY carry it, but a CompuUSA or PCClub should too). Otherwise I would either replace the power supply, or replace the outside fan in the power supply and see if that works (make sure that the connection types match on the old/new fans).\n\nWhat you could do before all that is to just leave the side of the computer off and see if it still reboots, and if so then it is not an overheating problem, but could still be the power supply.
570431
Can you post additional information such as, Speed and type of processor, operating system, what type of monitor connection??  Has anybody moved the wires in the back of our system? are the connections tight? You say you checked the video card, without a screen attached how did you "do" the diagnostics?