Question about HP Pavilion a6755y Refurbished Desktop PC - AMD Phenom X4 9550 2.2 GHz, 6GB DDR2, 640GB HDD, DVDRW,

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This desktop computer has involuntary shutdowns when started? A repair man said it's due to overheating. I read about a power supply switch set on 220v. Can you tell me more about this switch?

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Check your cpu heat sink fan to see if it is spinning or keeping your cpu cool. if the cpu gets too warm it will cause a shutdown without any notice. having extra fans cooling your system may help. Also, your capacitors may be wearing out or overheating which will eventually mean a new motherboard.

Posted on Jun 24, 2014

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It has nothing to do with that switch, YOU MUST USE THE APPROPRITE VOLTAGE, EITHER 115V or 220V. Using the wrong value would completely fry your computer Components. Well especially if the voltage coming in is greater than that represented on the switch. This switch, switches between two different circuits within the Computer Power supply or PSU. One for 115V and another for 220V.

Your PC is overheating, it is shutting down to protect itself from permanently damaging itself. Ensure that your computer components are free of dust. pay special attention to the CPU cooler and Graphics Card cooler. Use a paint brush and Vacuum cleaner. If you are unable to do it then hand it over to a pro, as you have to be aware of ESD, Electro Static Discharge.
Click here to download hardware monitor.
Click here to download GPU-Z.
CPU temps should not exceed 45 degrees centigrade.
GPU temps should not exceed 65 degrees centigrade.

Thanks, thumbs up.
damnor01

Posted on Nov 06, 2010

  • wd neojoneswd
    wd neojoneswd Jun 24, 2014

    i know of a few people who have had their heat sink fan stop cooling the cpu which causes a shut down.

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1 Answer

COMPUTER SHUTS OFF


There are several reasons for Auto shutdown of the PC, it can shutdown due to CPU processor overheating, Hardware conflict, SMPS voltage supply issue. what ever may be the reason, if you have knowledge of assembling then you can try below steps
1. Open the cpu cabinet and remove the heatsink then clean it.
2. clean the CPU Fan (use some spray like WD40)
3. Remove the old heat sink paste from the processor and apply heatsink paste and refix all the hardware.
4. check the voltage supply of the SMPS (power supply unit)
otherwise you can call computer hardware engineer and get the problem fixed.

Apr 18, 2014 | ASUS M11AA-US002S Multimedia Desktop PC

1 Answer

Computer keeps shutting off every five minutes or so


Computer may be shutting od due to following reasons:

Computer Virus
There are higher chances of a computer shutting down due to the interference of a computer virus. The virus gets into the computer and fiddles with crucial sections of the operating system, which may cause the system to shut down automatically. You need to install a good antivirus software and get the computer scanned thoroughly for any malware and viruses. Also see to it that the operating system and all hardware drivers are updated.

Power Supply
The computer power supply unit is an equipment that is installed in the cabinet to provide power to the system for operation. Your computer can shut down, if there is not enough power supplied to it for handling the programs running. If you are using the computer for running intensive software such as PC games, the system would require more power than what is actually available. Another reason can be overheating of the power supply. After the power supply is used for a substantial period of time, there is a possibility of dust getting collected inside it. And this may cause it to overheat, resulting in the shutdown of the desktop computer. If the power supply is at fault, you may need to get a new one installed.

Overheating of the Motherboard and the Processor
As with the case of dust getting collected in the power supply, the computer motherboard and the processor can also collect dust, which may be the reason for their overheating. This may also be one of the reasons why your computer keeps shutting down and restarting. You need to open the computer cabinet and clean the dust off the computer parts. The CPU board and the processor can also overheat because of many applications running. If this is the case, then it is suggested to keep the running of applications as less as possible or increase the size of Random Access Memory (RAM). Bad capacitors on the motherboard is also one of the reasons, why your computer keeps shutting down very often.

The 'Automatically Restart' Setting
If you are using Windows XP operating system, there is a setting that indicates the computer to reboot if it detects an error in the system's operation. In order to check if this is the problem, click on 'Start' and 'Control Panel', then select 'Performance and Maintenance'. Click on 'System', then the 'Advanced' option, and select 'Settings' from the 'Startup and Recovery' section. You will find an 'Automatically restart' option, which you need to uncheck for preventing the system from rebooting. Read more on computer keeps restarting on its own.

These were the possible reasons, why your computer keeps shutting down and rebooting. You also need to check if the power cables are properly connected to the cabinet and to the UPS, as loose connections can also be a reason for system shutdown. The most common cause of the computer getting shut down or restarted is due to overheating of the power supply and other internal computer parts.

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1 Answer

I have a hyundai monitor which keeps switching itself off Displays the computer screen then goes into energy saving mode after a second or so Help!


alastairhaig, Is unit 4 years old? Could be problem with units switch-mode-power-supply if same thing occurs when connected to fully functioning different pc that has all screen saver and power save features disabled. After screen goes "black" do you still see the WIN-desktop screen and icon's if you hold a bright flashlight at different angles about 1 inch from the screen? SEE = power supply in "partial shutdown" mode. NO SEE = smps in "full shutdown" mode. Do some reading in my fixya profile about "black screen of death" repairs. also read FIXYA profiles of "budmrtn" "buddymc" and other fine profiles of technicians here on fixya. You will truly be amazed when you visit YOUTUBE for video clips of owners/technicians who save their cold cathode fluorescent lamp, back-lit lcd monitors from the "trash-heap"!!! After you do your research please return here and rate this response and possibly do additional comment. 12fixlouie

Oct 12, 2010 | Hyundai Electronics Hyundai N91W (Black)...

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Bios reports "shut down due to overheating". Will then randomly shut down (hard). After each start-up will shutdown anywhere between 10-200 seconds. Can MB or chip be saved? Reset thermal trip (ie....


I had this problem crop up. Dust was the culprit, the CPU heat sink was a giant dust bunny. I removed the fan (held by 2 clips), removed the four screws holding the heat sink and pulled that. Then used a small shopvac to thoroughly clean everything out then reassembled. Works fine now.

Jan 21, 2010 | Gateway E-4300 PC Desktop

1 Answer

I have 2 monitors connected to 1 computer using a


satservice, What happens AFTER 15 min of FLASHING?? What did unit do or act like 3-4 weeks ago? Is the screen both BLACK and BLANK? or is screen just black and you can SEE win-desktop if you shine a bright flashlight 1 inch from screen at differnt angles? Can you use your Samsung warranty? Will monitor do same when connected to different KNOWN GOOD prebooted to desktop PC? Are you refering to the "power ON" indicator light on front BEZEL as the FLASHING thing? Need more info, but I suspect "shutdown of units "switch-mode-power-supply" due to detection of FAULT CONDITION having been detected with other circuit or with itself. Read some of my other responses in my fixya profile that deal with BLACK SCREEN repair. If this response useful, rate on fixya. 12fixlouie

Dec 19, 2009 | Samsung Computers & Internet

1 Answer

AcerPower F1 desktop boots fine after about 10


More likely it's from overheating; if it would be from the power supply ithe shutdown would be more random.
But it could also be a malware infection - especially if it happens EXACTLY after the same amount of time . Check what processes are active just before shutdown .

Nov 09, 2009 | AcerPower F1 PC Desktop

1 Answer

Involuntary Shutdown


Hi zen,
Can you please do this for me so that we can isolate the problem

Right click my computer and select properties
advanced tab,under start up and recovery,click settings

uncheck automatically restart under system failure.

In this way, we can see if the system was having a problem causing it to shutdown. or it might be a nasty virus behind your pc.

send me a feedback

Jun 23, 2008 | HP Computers & Internet

1 Answer

Hi, we have a phillips tv. it is about 6 orso years old. within the last 6 months, it has starting going off. you turn it on and it may play 5 or 10 or even 30 or more minutes but it keeps going off. the...


I wouldnt use that service man. If your set is shutting down its most likely do to the shutdown circuitry being triggerd by a defective component. I would recomend contacting someone skilled with phillips model televisions, most sets that play and then shutdown usually have a problem with a single component that is triggering shutdown, a skilled repair man will test the various voltages to determine the cause of the shutdown.

Jun 07, 2008 | Philips Televison & Video

2 Answers

CPU fan not working


you need to check your power supply if this is okay you need to replace the cpu fan. the cause of shutting down is the overheating of your cpu

Jan 06, 2008 | Acer Veriton 5200D PC Desktop

2 Answers

Flashing Lights when powered down


The flashing LED is because your system is in "sleep" mode. By default windows Vista puts your computer in sleep. What this means is it doesn't shutdown the power completely it leaves a little going through certain computer components (more specifically the ram) to speed up the boot time when the power button is pressed again.

In XP a the default shutdown scheme is a complete shutdown where power is turned off after the shutdown process is done. If you are using XP you are putting your computer to sleep when shutting down.

As for the boot problem. Newer motherboards have an LED on the actual board to indicate that it is receiving power. If it is of either the power supply switch (at the back of the case) if off or the motherboard connection is loose and the shaking makes it fall into place. (Shaking is usually not necessary and indicates a problem...)

There are a few possibilities I can deduct from your description:
  • the connection from your power supply to your motherboard isn't properly seated and is causing this
  • the power supply switch (not the case switch) is being  turned off and results in the computer taking a few seconds before the internal LED become solid
  • ... the dreaded sign that the power supply is failing and is on it's last legs...
My suggestion is to check all connections and if that doesn't work borrow a power supply from a friend and swap them to see if it boots properly.

(If a friends with a spare power supply isn't an option a local PC repair shop should be able to help you out... but probably for a fee...)

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