1) CX Series are not meant for medium or high-end pcs. They're for basic systems that won't draw a whole lot of power.
2) You should be using DDR3L RAM for Skylake.
3) You can't overclock on a B-series chipset.
4) Overclocking the CPU really isn't necessary.
5) For general gaming: R9 390 > 970; You can stick with the 970 if you have use of the CUDA cores though.
6) It's very nice to have a small (240GB) SSD for the OS/ often used programs.
General rework:
PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU | Intel Core i5-6500 3.2GHz Quad-Core Processor | $199.98 @ OutletPC |
| Motherboard | MSI B150M MORTAR Micro ATX LGA1151 Motherboard | $81.98 @ Newegg |
| Memory | Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-2133 Memory | $74.99 @ Amazon |
| Storage | A-Data Premier SP550 240GB 2.5" Solid State Drive | $59.99 @ Newegg |
| Storage | Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive | $46.89 @ OutletPC |
| Video Card | PowerColor Radeon R9 390 8GB PCS+ Video Card | $283.98 @ Newegg |
| Case | Deepcool TESSERACT SW ATX Mid Tower Case | $47.98 @ Newegg |
| Power Supply | EVGA SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply | $69.99 @ Newegg |
| Operating System | Microsoft Windows 10 Home OEM (64-bit) | $87.95 @ OutletPC |
| Monitor | Asus VX238H 23.0" Monitor | $129.99 @ Newegg |
| Prices include shipping, taxes, rebates, and discounts | ||
| Total (before mail-in rebates) | $1153.72 | |
| Mail-in rebates | -$70.00 | |
| Total | $1083.72 | |
| Generated by PCPartPicker 2016-02-08 12:18 EST-0500 |