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System overheated & shutting down - 911


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#1
notrious

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Hey all so here's what i am going through. I have a mac book using window7 on it from months and months ... never had any kind of problem. From last 3 weeks i started getting back lights shutoff and finally i sorted it out as i see win7 causing high CPU usage almost 90 to 100% so i get back on xp about a week ago and back light issue was sorted. Then after a day or so i started getting sudden system shutdown I installed few programs and figured out cpu heating issue which is 65 to 70c all the times. I changed some fan setting but mini i can get is 62c(though i live in a very airy place and outside temp is 25). From last 2 days system shutting has just became a pain in a** but system is keep on shutting after every mint. Yesterday I just opened the whole thing and cleaned it from heat sink to mobo thinking there might be some loose wire or heat sink maybe but what i did wrong i cleaned the whole artic silver compund thinking its a rust or some bad stuff. Now i am badly in need of help please please let me know how i can troubleshoot this issue. Its just keep on shutting every 2nd mint. I have reinstalled xp vista win7 like 100z times no help.

BUT SYSTEM DOESN'T SHUT IN SAFE MODE and works perfect If that could help.

Please guys i badly need help. What other reasons could be?

It's macbook 13 using intel dual core duo (just a note from last 5 or 6 months never had any kind of problem just started about weeks ago)

Please advise and thanks for taking time and reading such long post. Will really really appreciate some help ..


Regards

Sunny
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#2
Alzeimer

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Did you put back thermal paste (artic silver)if you did not then you will burn your processor at one point.

Does it shut down to when you try to install XP, Vusta or 7 or only after they are installed.


in safe mode the system only uses the basics and does not put as much strain on the processor as it would in regular mode and that is probably why it works better (less work less heat).

If you are at 62 C when idle it will for sure shut down, a core duo at worst should be 40 to 45 C at idle and with a very good fan/heatsink combo in the 30's
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#3
notrious

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Hi there thanks for reply at that time i haven't put just bought today and applied it today. CPU temp is quite low now it's between 35 to 45c. But problem is still there ... system just shut it self please badly need help. What else i can try?
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#4
Alzeimer

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Some of the reasons why a pc shuts down are:

Since you say you just installed a fresh new copy of XP i will rule out viruses and other spywares.

Problem with your Hard Drives (bad sectors or defective)
Your RAM is defective or one of them is.


To tests your HD download a disgnostic boot program from the manufacturer of your hard drive and test it.

To test your RAM dowmload the bootable iso image of MEMTEST86 burn it on a cd and boot from it.


Also when it shuts off do you see any BSOD (blue screen of death) if not try to go in your SYSTEM settings and disable your automatic restart after system failure.

on XP Right Click on MY COMPUTER choose PROPERTIES then choose the tab ADVANCED go to the last option STARTUP AND RECOVERY and uncheck the box AUTOMATICALLY RESTART.

If you then are able to see a BSOD right down the information it gives you (error codes)

or download BLUE SCREEN VIEW and run the program it should show you all the info about all your minidump files created during 'blue screen of death' crashes, and displays the information about all crashes in one table.
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#5
rshaffer61

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To add a little info here..
Run hard drive diagnostics: http://www.tacktech....ay.cfm?ttid=287
Make sure, you select tool, which is appropriate for the brand of your hard drive.
Depending on the program, it'll create bootable floppy, or bootable CD.
If downloaded file is of .iso type, use ImgBurn: http://www.imgburn.com/ to burn .iso file to a CD (select "Write image file to disc" option), and make the CD bootable.

NOTE. If your hard drive is made by Toshiba, unfortunately, you're out of luck, because Toshiba doesn't provide any diagnostic tool.

Thanks to Broni for the instructions


If you have more than one RAM module installed, try starting computer with one RAM stick at a time.

NOTE Keep in mind, the manual check listed above is always superior to the software check, listed below. DO NOT proceed with memtest, if you can go with option A

B. If you have only one RAM stick installed...
...run memtest...

1. Download - Pre-Compiled Bootable ISO (.zip)
2. Unzip downloaded memtest86+-2.11.iso.zip file.
3. Inside, you'll find memtest86+-2.11.iso file.
4. Download, and install ImgBurn: http://www.imgburn.com/
5. Insert blank CD into your CD drive.
6. Open ImgBurn, and click on Write image file to disc
7. Click on Browse for a file... icon:

Posted Image

8. Locate memtest86+-2.11.iso file, and click Open button.
9. Click on ImgBurn green arrow to start burning bootable memtest86 CD:

Posted Image

10. Once the CD is created, boot from it, and memtest will automatically start to run. You may have to change the boot sequence in your BIOS to make it work right.

To change Boot Sequence in your BIOS
Reboot the system and at the first post screen (where it is counting up memory) start tapping the DEL button
This will enter you into the Bios\Cmos area.
Find the Advanced area and click Enter
Look for Boot Sequence or Boot Options and highlight that click Enter
Now highlight the first drive and follow the directions on the bottom of the screen on how to modify it and change it to CDrom.
Change the second drive to the C or Main Drive
Once that is done then click F10 to Save and Exit
You will prompted to enter Y to verify Save and Exit. Click Y and the system will now reboot with the new settings.


The running program will look something like this depending on the size and number of ram modules installed:


Posted Image

It's recommended to run 5-6 passes. Each pass contains very same 8 tests.

This will show the progress of the test. It can take a while. Be patient, or leave it running overnight.

Posted Image

The following image is the test results area:

Posted Image

The most important item here is the “errors” line. If you see ANY errors, even one, most likely, you have bad RAM.
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