try this, shutdown the operating system but leave your monitor on. shortly after the operating system turns off you should see the "no signal" on the monitor. this pretty much means that one possibility is that the o/s crashed for some reason. but you should try the "stay awake" setting in developer options. you get the developer options list by clicking 7 times on the build number shown in system details. another thing you can try for a few nights just for a test is to install one of the "stay awake" apps . these apps start and then perform some small task over and over so that the system stays busy and does not drop off or crash because the idle routine or something else may have a memory leak or something which causes the system to crash.
stay awake apps try to just keep the system slightly busy. i would not buy a new power supply just yet.
stay awake apps try to just keep the system slightly busy. i would not buy a new power supply just yet.
