Hi,
My Sony VAIO VPCF11GGX shuts down suddenly. It happens when I have Skype and a few other apps open and try to open a few Google Chrome tabs. Is it a hardware problem? I believe it can't be a power failure, and hence I have suspected RAM. It might be also important to mention that I use a second monitor connected via HDMI for working with my laptop. In addition, I have had the RAM upgraded in 2011 to two 4GB modules totalling 8GB RAM.
Many thanks,
Sally