Re: Aspire 9300 keeps switching off

Quick update. Have changed the memory trying different banks too, the CPU, updated the BIOS and heatgunned the GPU. On all occasions the laptop ran for several days without a glitch then the problem would start again. Sometimes at POST, sometimes 2 hours after. Only one of the above suggestions I havent tried is replacing the keyboard. I have a spare mobo for this which had the GPU problem. I heat gunned the GPU a couple of weeks ago and got the graphics back so I think now I am going to swap the motherboards over. If the shutting down problem...

Re: Aspire 9300 keeps switching off

Thanks for the replies. Will probably take a bit of time to get through the testing as the problem is intermittent. Will start by testing the memory, then the keyboard and then I can get a CPU from ebay for £3.50 for testing too. Will reply when I have run some tests using the suggestions given.

Hi All,
this is my first post and would be glad of any suggestion for my problem.
My Acer Aspire 9300 keeps switching off. Some times it will run ok for hours, other times I get from 3 seconds into POST up to a couple of minutes after the PO system has loaded then it just shuts off. First thing I did was to check for overheating. The fan is clear and working with no obstruction. I have Silver Artic paste on the heatsink. Also now the problem can occur at POST when the unit is cold. I replaced the motherboard last year due to the common GPU problem this board has and it has run well...