I was having trouble with my computer not wanting to stay on. the fans would come on an go back off within 5-seconds. so i replaced the power supply and it worked the computer stays on and everything boots up but when i go to open windows or close something on screen it does nothing like the motherboard is not reading what i want to do. please let me know if i need a new mb.
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Re: computer not letting me open or close anything.
In some cases, the motherboard causes the screen to go blank and not load any program. Thats what happened to my HP Laptop. I called the company and explained them that nothing will load up and the screen went blank and they replaced the Motherboard.
So In tis case I think You need a new Motherboard.
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Normally when the CPU fan gets very loud it is because of an accumulation of dust. It cant revolve fast enough to cool your CPU so it will want to close down.
You need to open up the computer and blow the dust off the fan blades, preferably with an air spray can. Report back when you have done this!
Maybe the computer is running hot. Can you power it right back on
successfully when it shuts off? If you can't immediately turn it back on
successfully then it is running hot and has to cool off before it will
turn back on.
Three things that will make a computer run hot.
Dust - Dust inside the computer, dust clogging the fans and the vents.
Dust around the heat sink and cpu. Take a can of Compressed Air and
blow out the dust.
2. A fan not working. Make sure the fan
inside the power supply is working and the fan that sits on top of the
cpu and heat sink is working. Most computer will tell you when a fan
3. The Thermal Paste around the CPU and Heat
Sink has dried up or is too thin to keep the unit cool. Apply a fresh
coat of Thermal Paste.
If the system is not overheatting then you
probably have a virus or infection. Try booting up in Safe Mode and
see if the system will stay on for more than 5 minutes.
Turn off the computer, then hit the power button
to turn it back on and immediately start hitting the F8 key repeatedly until
you see SAFE MODE. Take the Safe Mode option and let it boot up. Safe
Mode will look different to you, the screen will be darker and the icons
bigger, this is normal. If the system stays up without shutting
off, turn it off and reboot as if you are going into safe mode, but this
time take the Safe Mode With Networking option (this will give you
internet connectivity). When the system boots up, open your browser and
download and install MalwareBytes, then run a Quick Scan.
Go to www.google.com and in the search box type:
"Download cnet Malwarebytes" (without the quotes). Download and
install malwarebytes from the sites download.cnet/malwarebytes. When the
site opens up click on the Green Download button on the left. Do not
click the Red Download button, that's junk. When it finishes installing the Gui
Interface will open up with an offer to Accept a Trial Version or
Decline. CLICK DECLINE you want the totally free version. Run a
QUICK SCAN. As it scans, if it finds infections the number will be in
red. When it finishes scanning, click SHOW RESULTS. A notepad text
document will open up showing you the results. You can close the text
document and go back to the Gui Interface where you will click REMOVE SELECTED
RESULTS. The objects will already be selected for you. When it
finishes removing the objects click ok and it will sometimes reboot your
Sony viao's are good machines, they will last you quite a while but I am afraid yours is in need of some tlc. Most desktop computers will work for several years without any maintenance. However if you do not clean your computer at least once a month you may risk dust accumulating inside your computer. If this is the case, then the fix is very simple. Go to the nearest bestbuy, staples, walmart or whatever store nearby that sells electronic parts. Ask for compressed air cans, commonly called dust remover. The cans contain pressurized gases to clean surfaces of electronics such as the inside of your computer.
Next is the fun part. When you are ready remove the side panel of your computer there are 2. generally when looking from the back of the computer the one on the right is the one you want. This side is usually the easier one to open as well, as it is opposite the computers motherboard. Unplug the computer and ready the can('s) of air and blast away. Make sure to get all the little bits of hiding dust and pay close attention to the fans. The fans may simply be too heavy with dust and years and are not moving enough air to cool your computer.
When everything is (relatively) clean and all the fans and heatsinks (they look like blocks of metal with fans over them, they have fins to pull heat off of parts inside your computer.) push any wayward cables back into the computer and out of the way of fans and the like and put the side back on. Test to see if this fixes the problem. If no it may be more serious and could require anything from new fans to a new motherboard. If this is the case then you are looking at needing repairs which while you can do on your own easily can be daunting for your first time. I hope this fixes your issue and keeps your computer cool in the future. Remember, a regularly cleaned desktop can increase the life of your computer well beyond the usual few years.
check if the psu fan is working if not then the psu is the problem if the cpu' fan is not working unseat all the memory, clean the metal contacts underside of the memory with an alcohol and a cotton let it dry for 5-10 mins then put it right back. if this does not work you have a defective motherboard.
having trouble with the computer the cpu unit is overheating therefore closing the computer down i have put plenty of thermal grease on this component and it still does not work the motherboard is a asrock p4i65g the fan is working alwright
Since this is only a Win98 computer it seemed very suspicious that I couldn't get into anything. I opened a command window (DOS prompt) and by accident found out that was enough to let me open anything else normally. I just added a Command window to the startup file to make it easier. Can't seem to figure out how to get it to close automatically tho'. That would make it a complete fix. Now the only thing that I have to do when it boots is close the command window and everything is normal. How 'bout that!