New pc not booting with 2 RAM sticks (only works with one)

Question

New setup: i7 6700K, mobo Asus B150M-C and 2 sticks of Kingston 16GB DDR4 2133. That mobo handles up to 64GB DDR4 2133 and has 4 slots. So everything should work. Well, it works only using one of the sticks (doesn't matter which one). If I try putting both sticks (in the order that the manual says) it does not boot (I can't access to Bios)

Possible solutions anyone? I want to use all 32gb!

Ps.: the Bios is updated.

Solution

Oh god. Solved. Booted it with a single stick > opened Bios > enabled XMP > shut off > installed the other stick and now it just works!

This thing is stupid. Asus, why is this mobo designed to refuse two sticks unless XMP is enabled?

Thank you everyone. Can't explain it myself.

Comments

[mt025]

Did you reset the CMOS using the jumper too?

[flolilo]

Is there any POST message or will it just shut down again w/o showing anything?

[Enis P. Aginić]

If it's a new rig, return the motherboard and get something overclockable (Z series chipset). Buying "K" CPUs and not overclocking is a waste of money.

[rakslice]

Curious... there must have been some existing manual speed setting that enabling XMP cleared out, but I don't know what setting would be fine for the modules individually but not work with them in a pair