Dual channel memory question 4 x 2gb

djszabi

Commendable
Jan 18, 2017
2
0
1,510
My motherboard is an Asrock P55M Pro
I have an i5 - 750 procesor and

2 x KINGMAX 2GB DDR3 1333MHz FLFE85F-C8KM9
2 x 2GB Micron DDR3 DIMM PC3-10600U MT8JTF25664AZ-1G4D1

This configuration should be able to run in Dual-Channel mode or not? In the bios is recognised all the four slots, totaling 8gb ram but Windows 10 it says 8 gb available 3.99 usable.

In bios memory mapping is enabled, in the "msconfig" i have enabled/disabled "Total maximum memory" and nothing changes. This pairs of ram have been working in an older sistem (HP Compaq 6600 MT Pro) but not in this system. Does anybody has any clue?

Thank you in advice.