Best ram specs for this hardware

Whistlewind

Prominent
Jun 8, 2017
1
0
510
I am wanting to purchase 32GB (4x8GB) of ram for my machine. Given my build I am wondering what I speed/timings I should buy? I know there are limitations based on my hardware and want to make sure I stay within the limits of what my motherboard/cpu supports. Recommendations for specific ram is also welcomed, thanks in advance!

AMD - Phenom II X4 965 Black 3.4GHz Quad-Core Processor
Gigabyte - GA-990FXA-UD3 ATX AM3+ Motherboard
Gigabyte - GeForce GTX 1070 8GB Windforce OC Video Card