RAM only works in certain slots/configurations?

[Tez20]

I have two sticks of RAM. In my new build, the RAM only works using one stick in the 4th slot or both, together in the 3rd and 4th slots, single channel. Both sticks were tested alone, and also tested by the windows memory diagnostic; they supposedly are fine..

Do I return the motherboard?


Asus z97-a MOBO
Intel i7-4790k CPU
g skill ripjaw 2x8gb 1600 RAM

 

[ronintexas]

Does it make it into the BIOS with them in the proper slots (I am assuming it would be 1/3 or 2/4)? Sometimes the RAM settings can be off - I would check that first.

If using slots 1 or 2, with a single stick, does it recognize the RAM?

If it doesn't recognize in 1 or 2 with a single stick (that did work in 4), I would bet on a bad mobo.

 

[Nuck Chorris]

Looks like a motherboard's faulty. I also have an Asus motherboard that has a broken ram slot.

 

[smorizio]

most time is can be a seating issue with the cpu or bent pin under the cpu.