I purchased Toshiba Satellite A200 1 year ago, clock speed of 1.66ghz, upgraded to Windows 7 RC and RAM of 4 GB. My trouble started about 1 month ago when i was still using Vista HP and 3Gb of Ram. The laptop just started to shut down itself suddenly. No warning, no error messages, no shutting down or logging off display...just immediate OFF. At first i considered it was a virus problem so i scanned the antivirus of the whole laptop with my Kaspersky Internet Security 2010 and establish nothing. Sometimes it would be on for days then unexpectedly switch off. Occasionally when I plug in my external HDD or my IR remote receiver it will switch off and infrequently it won't. The most irritating one is when it switches off about 3-4 minutes after switching it on and i have done totally nothing to it. I have run a software called RealTemp and the whole thing appears to be running within satisfactory parameters at between 74-79 C and the max performance at 86 C. The Ram I have improve to and installed is the accurate kind for the machine as i used Kingston's ram verify utility as well as examining the Toshiba website, in addition it has been a long time while i installed the initially RAM of 2 GB update and not anything happened then. Has anyone got any advice as to what the reason may be??
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