Random laptop shutdowns

Hello I have an Acer Aspire 5750G-9639 and I am running Windows 7 64-bit. Ever since I bought the laptop last summer, the laptop would randomly shut out without any warning. It would do this a few times every day and is extremely annoying. Also, occasional BSOD's come up while web browsing, gaming, and even sitting at the desktop. I have not tried an OS reinstall because I do not have an OS disk. Acer support told me to update my BIOS and these errors are still occurring. I have also updated my drivers. I have attached files from the diagnostic program I downloaded from this site. It contains a mini dump of a BSOD that occurred a few moments ago. Thank you for any help.

richnrockville said:

Welcome Plates to the windows 7 forums.

Oftimes when the shut down is random, it is because of heat build up on your cpu or mb.

You might want to blow out the vents to make sure they are not clogged. You can shut down and
then useing some compressed air, give it a good blow.'

Rich

Thank you for your reply. I do not think it could be heat because the laptop could be working for a straight 10+ hours before I shut it down myself. Other times it's just very random. I think it may be my RAM because I have ran the Memtest that came with Windows and it came up with an error about bad RAM. Other Memtests however, show no signs of errors. Also when a disk defrag is in place the shut downs appear more frequently. Attached is an image of what Event Viewer tells me whenever the laptop shuts randomly.

richnrockville said:

Plates, It does sound like your memory could be the culprit. If something writes to a certain area of memory, it could be the cause of your shutdown.

You could replace your memory but without filling out your systems spec's, I can't say to remove part of it and then test. If you have 4 gigs, then most machines will run on 2 gigs. give that a shot.

Rich

Once again, thank you for your quick reply. Currently I have two 2GB 204-Pin DDR3 SO-DIMM RAM cards in my system. Eventually I will upgrade to 8GB when I am out of the 1 year warranty.

I do not think your recommendation would work because just idling puts me at 48% memory used. Plus Acer told me that either removing the RAM or hard drive would void my warranty which is something I do not want to do. Do you know any other suggestions I could try?

48% with nothing else running sounds kind of high. What about your paging file (virtual memory)?

You could also try testing memory by using memtest86+.

I have a 4GB page file. Also I tried memtest both regular and 86+. Both showed no errors.

Are you seeing anything in the event logs?

You could also try sfc /scannow in an elevated command prompt.

48% of 4 GB memory, with nothing but Windows running, seems to be at least twice as high as it should be. You may need to start looking for stuff that's automatically started on startup. Always a good idea to check on this occasionally anyway.

I'll try to get a scan tomorrow. The event logs point to a kernel power error. ^^Image earlier in thread has picture. I have only a few startup entries enabled. (ex: Anti-virus, Intel management stuff, etc.)

sfc/scannow shows no errors.(see attachment) I have done disk check before and have received no errors either.