Aurora-R7, Warranty/Customer service question?

I purchased an Alienware Aurora R7 desktop in May 2018...I have spent a total of 10 hours on the phone with tech support in an effort to figure out what is wrong with my PC. It has froze up several times over the course of the last 6 months, it has even frozen 5-6 times during the last 5 Windows installations through DellConnectUS remote service. It passes all of its test and I have no idea what is wrong with it, it makes grinding noises like an old mechanical hard drive and even whistles like brake pads hissing so loud i have to reboot the PC. these issues have all been experienced by the "Customer Support" specialist and now again today i will have to spend another 2 or more hours on the phone while they run remote tests, while nothing is failing it's test...so whatever is wrong will not be fixed just constantly trouble shooted by me instead of at a shop like it should be. I keep getting the runaround on getting a replacement or getting this issue looked at by a professional, at what point is the warranty worth anything? When do i get to a point where I can just have the PC fixed or replaced?...how many more hours is required for the next step?...I have tried to be patient, but I would like someone from Dell to contact me about this if possible and not a customer service rep that just wants to do testing. I have a Service Tag and a service request ....My representative is Omar Arias Sr. associate client tech support...Please help me get this resolved, thanks.