$420 Gaming PC Build

Solution
You'd have no issue running 1.65v ram but it is a sign of lower quality ram. The psu is a 7 yr old design and am going to suggest you stay away from it. The mobo you chose is unreliable.

PCPartPicker part list: http://pcpartpicker.com/p/1Bw7N
Price breakdown by merchant: http://pcpartpicker.com/p/1Bw7N/by_merchant/
Benchmarks: http://pcpartpicker.com/p/1Bw7N/benchmarks/

CPU: AMD FX-4300 3.8GHz Quad-Core Processor ($110.98 @ Newegg)
Motherboard: Gigabyte GA-78LMT-USB3 Micro ATX AM3+ Motherboard ($54.99 @ Microcenter)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($59.98 @ NCIX US)
Video Card: HIS Radeon HD 7850 2GB Video Card ($139.99 @ Newegg)
Case: Thermaltake VL800P1W2N (Black/Red) ATX Mid Tower Case...
You'd have no issue running 1.65v ram but it is a sign of lower quality ram. The psu is a 7 yr old design and am going to suggest you stay away from it. The mobo you chose is unreliable.

PCPartPicker part list: http://pcpartpicker.com/p/1Bw7N
Price breakdown by merchant: http://pcpartpicker.com/p/1Bw7N/by_merchant/
Benchmarks: http://pcpartpicker.com/p/1Bw7N/benchmarks/

CPU: AMD FX-4300 3.8GHz Quad-Core Processor ($110.98 @ Newegg)
Motherboard: Gigabyte GA-78LMT-USB3 Micro ATX AM3+ Motherboard ($54.99 @ Microcenter)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($59.98 @ NCIX US)
Video Card: HIS Radeon HD 7850 2GB Video Card ($139.99 @ Newegg)
Case: Thermaltake VL800P1W2N (Black/Red) ATX Mid Tower Case ($39.99 @ Amazon)
Power Supply: Corsair Builder 430W 80 PLUS Certified ATX12V Power Supply ($24.99 @ NCIX US)
Total: $417.92
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-09-08 18:14 EDT-0400)
 
Solution

dottorrent

Honorable


Or this PSU -

XFX Pro series 550W 80+ Bronze certified PSU - http://pcpartpicker.com/part/xfx-power-supply-p1550sxxb9