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Acer Aspire 4736G constantly shutdown by itself without warning
I have a 6 years old laptop that is constantly shutting down by itself without warning during startup.
This happened after I downloaded an ebook.
The shut down occurred more during starting up the laptop about 6 times before reaching the logon screen.
It normally shuts down a few times in normal use like surfing the web, downloading, or even when I was running hardware tests or HDD error checking.
At first, I thought the Toshiba HDD was nearing it lifespan. I did a test on the HDD. Please read 6 yo Acer Aspire laptop can't boot due to sysconfig changed & disk err. The constant shutdowns that occurred, damaged the Toshiba HDD severely especially the MBR.
I already performed Windows MemTest.
All OK, normal bootup without any problems.A pop sound!.Shutdown again after 25 minutes of use.
In safe mode, no shutdown yet in a minute or two. I did not keep the Acer power on in Safe Mode for more than 5 minutes.So the test is inconclusive.
Then I did a re-installation of windows 7 on a new Western Digital HDD. Please read I am totally blank on installation of Windows 7 on a new HDD.
After re-installation of windows 7 on a new WD HDD. The new WD HDD will auto shutdown every time during startup or bootup even before reaching the logon screen or after I logged in or when I was installing the drivers 10 to 20 minutes after startup or bootup .
I am now using the old Toshiba HDD to access the WWW.
Did search using google, next going to clean the fan.
Maybe BIOS,RAM or mobo problem?
Any ideas?
Thank you again for your replies.