Question about Computers & Internet
I have an IBM Thinkcentre Desktop. 8433-98U When I do shutdown threu windows, the cpu fan goes on high, and the machine does not power off. the display goes out, it seems everything else stays on.
Open the Control Panel. Power Options, Change/Adjust power off settings, change Sleep and Hibernate to Never, set to High Performance. A reboot everyday will reset your computer.
Posted on Jan 18, 2013
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Posted on Jan 02, 2017
SOURCE: IBM THINKCENTRE A51 - WON'T BOOT
Simple dear, I think that you can see the power led and hdd led but it wont boot. Right. So switch the system and than open the cabinet and than remove the RAM , CLEAR THE DUST ON THE SLOT AND RAM. THAN REPLUG IT IN THE SAME WAY. PLEASE DO NOT INSERT IT FORCEFULLY BECAUSE IT WILL GO EASILY IF YOU ARE INSERTING IT IN RIGHT WAY. SO CHECK THE POSITON OF THE NOTCH ON BOTH THE RAM AND SLOT OK
AND THAN START THE SYSTEM. THIS MIGHT DEFINATELY SOLVE YOUR PROBLEM.
Posted on Nov 19, 2008
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Posted on Feb 21, 2009
The situation you describe is usually 1 of 2 things, Power supply (PSU) or Motherboard (mobo).
Situation #1: If you get a blank screen and no sounds or movement it either indicates that the power supply unit (PSU) has failed or something on the motherboard has failed, preventing normal startup. Fans are usually the first thing to get power, then the mobo for the Power on Self Test (POST).
Situation #2: You might get some power lights coming on and some fans spinning but the video output does not happen and normal startup sounds do not take place, usually indicates that motherboard is going out or has gone out. OR it may be due to a weak (damaged) PSU.
Always try a different power outlet that you know is working. (Eliminate the easy stuff first!)
If it is out of warranty, try opening up the case, with the power off, of course. Also take this time to inspect the capacitors on the motherboard (they look like tiny soda cans) and check for tops that are bulging, swelling or leaking anything. Capacitors should be perfectly flat on top. If you find these then your motherboard is bad (well technically the capacitors on your motherboard are bad). The bad caps will need replacing to fix (not a job for an amateur). If it passes the visual inspection then it may just be your power supply is bad. Notice that a bad PSU does not mean you are getting no power, just not enough to start and run the computer.
A few years ago a company stole the recipe for making capacitors and started making their own capacitors at really cheap prices. The stolen "recipe" was not complete and not correct so these caps started failing after about 2-3 years of use. Emachines, DELL and Gateway were the computer companies most affected by the bad capacitor issues, although any of the big companies could have the same problem. These bad caps also affected power supply makers.
Since you have tried removing components then it looks like you have narrowed it down to either the power supply or motherboard. If your motherboard looks ok and if you can get another power supply that has an output watts that is greater or equal to the one that you have, try replacing that first.
Posted on Apr 14, 2009
open case and see if the fan is dirty, clean it with canned air if that solves the problem your set. If it doesnt solve your problem then the Fan will have to be replaced ,in order to keep the cpu cool.
Posted on Jul 12, 2009
This could still possibly be a bad power supply, even if the fans and drives spin up. If you have a spare try hooking it up.
the list of things that can cause this are:
bad power supply
IDE error (optical or hard drive problem)
bad card (modem, video card etc.)
The first thing i would look for in this case is blown capacitors. Those are the little things on the board that look like little soup cans, usually with silver tops. If the tops of any of them are bulging or have junk leaking out of them, you have a bad board. If you are handy with a soldering iron you can try to replace them. Not sure if radio shack still sells caps, but they are easy to find on line. I have about an %80 success rate fixing boards in this way.
If the PS change doesn't work, then try it with different sticks of RAM, if you have more than one, pulling one at a time until it starts or you've tried it with all the ram. If not ram, disconnect the ide cables from the board, these are the wide ones usually connected to the HD's and optical drives. If it still doesnt start then pull all the cards. If it doesnt start then, try swapping processor and if still no joy a new board.
Posted on Sep 05, 2009
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