My dad wanted a HTC that fit his entertainment center shelf (6" height restriction)... Which is fine. I figured I'd toss together an A8 or maybe an i3 system real quick for about $300... Nope. I told him it was not needed, and he was fine with it, so he had me go with an overclocked i5 and 16gb ram... Fast ram... Oh ya, and an ssd (there's also a Hitachi 2tb drive in there but it was from his old system).
So basically I went with a nice looking under 6" high Silverstone case that had front USB ports (without an annoying flip down face), a 6600k, 16gb of 3000mhz ddr4, a much unneeded but nice to have Evo 850 ssd for the OS and programs, an a simple semi modular cxm series psu... Its using on board graphics, but I had to pick my cpu cooler carefully for performance and height since my dad wanted this thing overclocked (I put it at 4.2ghz).im actually super impressed with this cooler to be honest... Its really quiet but works awesome. I have 4 80mm fans along the side as well with the 2 towards the front as intake feeding air across the ram and the back 2 are exhausting out from the cpu cooler area.
My only issue is that I couldn't mount the drives against the bottom of the case as planned due to corsair using junky sata power connections which can't be used so close to the case bottom, so I improvised to other locations... Originally the hdd was below the optical Bay and the ssd was flat on bottom behind the psu. If he ever want to add a Blu-ray drive I'll address that issue better. The case only has 2 case fan headers, so I'm running 2-1 pwm splitters for motherboard control of the side fans.
Also... Trying to install Windows 7 (later upgraded to 10 pro) on a z170 motherboard using USB peripherals and a thumb drive is HELL. wasted so many hours till I said the hell with it, brought over my old ps2 board (kept for similar issues on older systems lol) and raided the DVD drive from his other system just for the initial windows install... Seriously, don't try using ONLY USB stuff... It sucked so bad when I was already half asleep lol