LuckMechanic

Hello Guys, I have an AW M18x-R2 (pic below) and I have been struggling with this piece of technology for the last 2 years. I have read numerous forums and already attended PC service 2 times and all my attempts to sort the following issues have completely failed. I am writing here hoping for some advice as I am about to either sort out these once and for all or brake this laptop... The issues I experience are as follows: #1 - The screen goes black out of nowhere - While in use the screen goes completely black. I can hear that everything in the background is working. If I was playing music, the music continues and I can hear mouse clicking when clicking at random in the dark. All I can do at that point is to shut it down and start again. Sometimes the screen lights up, sometimes it doesn't. If I wait an hour I have bigger chances to have the screen back. I have currently disabled the GPU and the issue tends to happen much rarely, but for sure at least once every 2 days of use. My very basic IT skills have made me put the laptop in the fridge freezer. It lights up faster after that. #2 - Sound - Sometimes, when I load the PC there is no sound and it comes with a message that audio is not detected. Ridiculous. I have tried all kind of drivers and I cannot find a consistent way of resolving this issue. Somehow It comes back at some point of time with god's mercy. #3 - Hard Drive - I have an additional hard drive which is not detected. During the installation of the windows it was detected, but later it didn't show anymore?!? I am currently about to try flashing Swicks's BIOS hoping that it may resolve some of this issues. I am just wondering if v2.00 from 04.2016 is the latest one available. Additionally, are there any modded drivers for Win10? If I can get rid of the problems above I would kindly ask you to suggest any possible upgrades as I am willing to invest further. *RAM - I am after the best possible that this laptop can accept. *CPU - Is it really worth upgrading the current one? *GPU - Not a hardcore gamer, but would like to upgrade to a good value for money one. *Any other internal cables, fans, thermo-syncs, etc. that is worth changing/upgrading. Any comments will be much appreciated. Thanks in advance.