Since 7 years, I used a Asus G50V notebook... It was time for change so I decided to take my wallet out.
This computer is mostly for gaming but also for work. So these are the reasons of my choices :
CPU: I wanted a CPU good for gaming but also for work. That means : multithreading AND Turbo boost so Intel I7. I hesitated with the I7-4790K because it's better than the I7-6700K in terms of performance but as it is an "old" technologie I choose the I7-6700K. With this one I will be safe for more years.
Motherboard : As I choose an I7-6700K, so LGA1151 and overclocking, I went for a Z170 Chipset. I hesitated between Asus and MSI. But I had bad suprises with my ASUS G50V notebook. So I decided to go for MSI. My budget was 200€, and for this price, the best choice (according to reviews) was the MSI Z170A Gaming Pro Carbon. I didn't choose this motherboard for the RGB Led, but this features is really cool :). BE CAREFUL : I needed to sent back my motherboard for RMA, I had big problems with the DRAM (at boot, one out of 3 times, boot procedure hung with the DRAM debug LED ON). On the MSI forum, I read that there is a lot of problem with this serie. I received a new motherboard and now it seems to work.
CPU Cooler : I choose BeQuiet, because they are really quiet. And the best product is the Dark Rock 3. The "pro" version is really to big. BE CAREFUL : The Dark Rock 3 is not compatible with the MSI Z170A Gaming Pro Carbon (I asked BeQuiet and they confirmed me it). The 4 pins from the 2 capacitors near the DIMM socket are too long for the Dark Rock backplate. Once the CPU Cooler is mounted, these pins are under pressure (the backplate is isolated, so there is no short-circuit). See pictures. To resolve this problem, I simply cut a little the 4 pins of the capacitors.
Memory : I wanted 16 GB of Corsair DDR4. As the CPU cooler is imposing, I choose low profile series. So I went for Corsair Vengeance LPX serie. I wanted DDR4-2400 MHz but my reseller didn't have it in stock so I choose DDR4-3000 MHz 2 x 8GB. As I had problem with DRAM I didn't test XMP neither overclocking. So my DDR is running at 2133MHz. But when I will be sure that my DDR problem is totally resolved, I will turn on the XMP :).
Graphic Card : I wanted MSI GTX 980, but it was really to expensive for me so I choose the MSI GTX 970 and the Gaming 4G version for the better GPU frequencies capabilities.
Storage : I choose a Samsung 850 EVO 250 GB for OS and applications. For data storage, I choose a Western Digital Red 2 TB. I didn't choose a black edition because I didn't want performance but fiability.
Case: I, again, choose BeQuiet (because they are quiet :) ). I choose the 600 serie because 800 is too big and, as I choose a motherboard with RGB led, I took the window version (orange is my prefered color :) ).
Power supply: Again, BeQuiet. It's not a Pure Power L8 700W but a Pure Power L8 730W CM. Cables are not very convenient. They are not very flexible. In addition, SATA connectors have cable on the side. Maybe I will bought replacements.
Monitor : I wanted a 24" Gaming monitor. So I went for a BenQ RL2455HM. It's a really good monitor, but screen settings must be set carrefully to have a good image. I passed 1-2 hours to find the best settings.
If you have some questions ...
EDIT 1 : I've enabled XMP in bios settings. Now my DDR is running at 3000MHz @1.35V
EDIT 2: I've overclocked my CPU to 4.4GHz. CPU Core voltage is set to "AUTO" and raise 1.288V at 4.4GHz. Max CPU temperature measured was 60°C with CPU Cooler fan at 50%
GPU is overclocked at 1368 MHz. Max GPU temperature measured was 70°C with GPU Fan at 50%
EDIT 3: I've changed the power cables (Mainboard, PCIe and Sata), see last pictures :). I've also had a second front fan (Bequiet Pure Wing 140mm)
EDIT 4: My new MSI Z170A Gaming Pro Carbon restart to have problem... Please run away from this motherboard !!!