hi i am going to buy a Gateway DX4870-ub308 what i want to know is this computer says it can support 16gb of ram it has 4 slots for ram which one is best a 4x4 ram setup or a 2x8 ram setup for this computer or is 16gb too much ram should i just get 8gb of ram and im going to get a Sapphire ATI Radeon HD7750 will the 300 watt power supply handle it here are the specs
Case: Mid Tower
Processor: 3.40GHz Intel Dual Core i3-2130
Installed Memory: 6GB
Max Memory: 16GB DDR3-1333/PC3-10600
Graphics: Intel HD Graphics
Hard Drive: 1TB 5400SATA
Optical Drive: DVD-Writer
WiFi (Y/N): Yes
Ethernet Type: Gigabit Ethernet
USB Ports (2.0): 6
USB Ports (3.0): 2
HDMI (Y/N): Y
Other Ports: -linein-lineout-RJ-45-VGA
Input: Mouse and Keyboard included
Dimensions: 15.8 x 14.9 x 7.1
Power Supply: 300W
Case: Mid Tower
Processor: 3.40GHz Intel Dual Core i3-2130
Installed Memory: 6GB
Max Memory: 16GB DDR3-1333/PC3-10600
Graphics: Intel HD Graphics
Hard Drive: 1TB 5400SATA
Optical Drive: DVD-Writer
WiFi (Y/N): Yes
Ethernet Type: Gigabit Ethernet
USB Ports (2.0): 6
USB Ports (3.0): 2
HDMI (Y/N): Y
Other Ports: -linein-lineout-RJ-45-VGA
Input: Mouse and Keyboard included
Dimensions: 15.8 x 14.9 x 7.1
Power Supply: 300W