I have 2 slots for ram, The left one appears to be broken, Suggestions?

[Twiix]

I have a 6gb of ram, 4 on (1) 2 on (2) but the left one seems broken, if i take out 2, which is the left one, my computer is blank, if i swap them. it only shows 2gb, There is no appearance of physical damage, Any ideas?

 

[boosted1g]

Modern motherboards require the memory to be inserted into specific slots.
Consult the motherboard manual.

Try booting with just the 4gb in the left slot, and with just that stick in the right slot.

Have you booted with the 4gb stick before? could be that stick is broken, could be the motherboard does not support it.