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PC keeps on shutting off and on


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#1
shouranpotter

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Hello everyone,

I really need help with my PC. I'm quite lucky today coz it opened normally and didn't shut down by itself. (but I'm typing really fast instead it shuts down again.
This just happened last Friday. While I was surfing the net, it suddenly shuts itself down then after a few seconds, it turned on again normally so I continue what I'm doing before it shutted down. Then it happened again so I turn it off from the main switch. When I opened it, it opened normally but after 5 mins, it shutted down again then opened by itself and it was just showing the loading thing, it shut down again and some of the lights on my keyboard and the light that blinks or lights up when the PC is busy on the CPU is also lighting up. This still continue even if I switch my Pc off overnight and leave it on for a few hours. This is really giving me a hard time coz I have few works to do but I can't do it coz my PC keeps on shutting down. Sometimes it works normally but it will suddenly shut down.

It also keeps on turning on when I leave the main switch on but then stops and leave the CPU and keyboard lights open.

This already happened to my PC before but it would allow me to use it for quite a long time before it would shut down by itself.

I would really appreciate replys.

Thanks in advance.
Phil.

Edited by shouranpotter, 12 June 2006 - 11:15 AM.

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#2
Retired Tech

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Items in blue which are underlined are clickable to give more information about the process

Download and install Everest Home Edition

Run the programme, click + next to computer then sensor

Look on the right for temperatures and post those

Click summary

Look on the right for display / video adapter

Look at the manufacturer’s site for the suitable drivers for your Operating System


If you are unable to find them, please post the make and model here before you download anything

Please set a system restore point before you install anything
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#3
thebucs

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i experienced a very similar issue on a HP i used to own. for me it was the power supply and the power switch. i replaced the both of them, it worked for me for about 6 more months, i then gave the pc to my nephew and he has had no problems since then.
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#4
shouranpotter

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Thank you so much for the replies!
And about that restoration points reminder. I rarely set restoration points.

---------------------------------------------------------------
Temperatues:
WDC WD800EB-00DJF0 37 °C (99 °F)

Display:
Video Adapter ATI RADEON 9100 IGP (64 MB)

--------------------------------------------------------------
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#5
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The temperature is fine, was it the only one shown?
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#6
shouranpotter

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Yup, it's the only temperature shown together with the sensor type above it which is HDD.

I think my PC is quite fine when I opened it today. But I'm still anticipating that it will have this problem in the future because it already happened several time before. What I'm worrying is that it keeps on getting worse.

Thank you very much for the help!
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#7
Retired Tech

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You can run through this, which takes a while but checks a few things

Items in blue which are underlined are clickable to give more information about the process

Click start then run, type prefetch then press enter, click edit then select all, right click any file then click delete, confirm delete

Click start, all programmes, accessories, system tools to run disc clean up, then from system tools, run disc defragmenter.

Click start then run, type sfc /scannow then press enter, you need the XP CD and Windows File Protection will show a blue onscreen progress bar, when the bar goes, reboot

If you do not have an XP CD you can borrow a same version as was originally installed XP CD, if you downloaded SP2 then you need an SP1 XP CD

Click start then run, type chkdsk /f /r then press enter, type Y to confirm for next boot, press enter then reboot.

Windows will appear to load normally then either the monitor will show progress or the screen will go blank, do not disturb this.

This will take an hour or so before it gets to the desktop.

Download and install Tune Up 2006 Trial

Run Tune Up Disc Clean Up

Run Tune Up Registry Clean Up

Click Optimize and Improve to run Reg Defrag, which will take a few minutes and need a reboot. You should disable the antivirus programme to run this and check it is running after the reboot

After the reboot, click optimize then system optimizer to optimize the computer, select computer with an internet connection from the drop down menu, this also requires a reboot

After the reboot, click optimize then system optimizer to accelerate downloads, select the speed just above your actual connection speed, this requires a reboot

After the reboot, click optimize then system optimizer to run system advisor

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#8
shouranpotter

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I really can't find an XP Cd anywhere. Is it possible to skip that part?
And my problem happened again. Yesterday and this morning it keeps on shutting down and sometimes it doesn't even open even if I press and hold on the open button.

Is it possible that this could ba a malware or just a problem inside my PC?

Thanks in advance.
I really appreciate all your help.

Phil.
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#9
Retired Tech

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Run sfc /scannow with out the CD, click skip and confirm if it asks for the CD, if it keeps asking, click cancel, this determines if there are missing files

You can carry on with the rest
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#10
shouranpotter

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Thanks!

Btw, I just run the Everest Home Edition thing and checked the temperature. It's 29 °C (84 °F). Is this still normal?
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#11
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The temperature is good
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#12
shouranpotter

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Hello again.

I tried to do the list of things you said several times but it suddenly shutted down at some point of the process.

Can it be about malwares or some internal problems?
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#13
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Download Memtest

Run it overnight if possible

Using Memtest

To check for malware

Please follow the procedures outlined here: Malware Removal Guide

You will need a PC which can connect to the internet

Run all the programmes as advised then post a current Hijack This Log in a new topic in the Malware Forum

For the purpose of accurate malware analysis, Hijack This Logs are only dealt with in the Malware Forum. Posting them anywhere else will result in a delayed response

If you are unable to run any of the programmes, please ask for advice in the Malware Forum
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#14
shouranpotter

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Thank you very much!
:whistling:
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