you changed your mobo, so your computer doesn't recognize all the parts that is connected to the mobo, i suggest you just make a clean install of windows and format your HDD , keep the important files on another HDD so you can get them back later.

there is no issue here, however the guy that changed your mobo should have done this , and having a charger fail on you doesn't really require you to change the motherboard, unless it got a static discharge.

If it's exactly the same mobo, it should work. If this were a pc, I'd be pretty sure it's the power supply. I'm surprised the guy who replaced the mobo didn't actually check that plus the boot sequence...

"Hit F12, went to legacy boot and checked HDD and it cannot find boot device."

This MAY be a long hunch but this has happened on my laptop when I got a new hdd.

It wouldn't recognise it for some reason. Then I found out it was because it was SATA so no drivers to recognise the drive.

So in my laptop bios I had to change the hdd controller to something like "IDE over SATA" which tricked the controller into running like an IDE one. However this was a very old laptop where SATA drives first come in, so not sure how newer laptops treat this issue of SATA drivers.

Then windows installed the SATA driver and the OS and then in bios I could switch it back to SATA to make it run faster.

Sorry I can't be more helpful it was a long time ago and each laptop would treat their controllers differently i guess.

It was the charger port on the laptop itself, which on this model is fused to the motherboard.

Anyways, the tech just called me back, it seems that after the engineers investigated the issue they found that the batch of MoBos that they grabbed this one from was known to have issues (Real fucking nice huh?). They apparantly have (2) bad batches. So they are sending another tech to my house during the week to install another MoBo and also giving me a flash drive with a new Windows 8 install.

He had me run a system diagnostics test earlier and the HDD came up with no errors, so when I asked about whether or not it could be the HDD he assured me that the HDD is fine and they concluded that the MoBo is indeed the issue here.

Oh well, one more bad problem and they will have to replace my laptop with another of equal and/or better specs. I wouldn't mind being upgraded to a M17X.

Who the fuck installs a new Mobo on a broken laptop... A Mobo for a laptop shouldn't be replaced cause a shit ton of things usually wont work after that... Usually if ur laptop's mobo has issues, you replace the laptop, not just the mobo... Make sure you reinstalled Windows, that might fix a few things. But seriously, the only thing u should replace on a laptop is the ram, hardrive or DVD/Bluray player, nothing else...

I was told that I would be denied a full replacement until at least (3) major repairs are done and fail.

It could actually be faulty Ram.
Still nag them until it's fixed.

What in the hell... If the mobo fails... they have to replace the CPU and GPU cause those are usually intergrated onto the Mobo and it should be considered as those failing as well, along with USB, Sata connectors and many other things... I want to slap the person that thought of this kind of warrenty... If they only replaced the mobo and not the CPU/GPU, everything is gonna break even though it might be the same, somethings are always different. Its like if they replaced your heart with an incompatible heart, your body is gonna fight itself cause it won't recognize wtf that thing is... 

I would say, in the future, buy laptops from Asus. They offer Accidental Damange warrenty for most of their mid-high ranged laptops for free (As long as you register ur laptop within 30 days on their website), their warrenty/tech support is good and they offer a two year two way free shipping with majority of their laptops as well...

Wow, really? 

Shit, it could be anything at this point, lol.

Good, if it happens again I get a new laptop with possibly higher specs.

GPU is fused to the MoBo but the CPU isn't. When the tech installed the new MoBo he moved my CPU from the old one to the new. I am guessing they are fused because it runs Optimus. It has an Intel HD4000 and a NVidia GT 650M.

I was initially going to buy a MSI laptop but didn't like the CPU that came with it. Then I saw this laptop on sale for $800 when it normally retails for $1100 so I went with it. It's an Alienware M14x R2. It pretty much runs everything I throw at it, so I am happy with the performance for the $800 I paid.