Help changing RAM speed to 1866...

[kalabre]

When I change my ram in the bios to 1866 it says:

DRAM information
XMP ddr3-1867 10-11-10-30-2N-1.50v-1.20v
DIMM_A1: Corsair 8192mb 1333mhz
DIMM_A2: Corsair 8192mb 1333mhz
DIMM_A3: Corsair 8192mb 1333mhz
DIMM_A4: Corsair 8192mb 1333mhz

Just wondering why the 4 DIMM_A# ones read 1333mhz but above that it says total memory: 32768(ddr3 1866mhz)?? Is it at 1866 now or no? And why would it read 1333mhz on the DIMM_A#?

This is my first build, so I am feeling rather dumb. Tried looking on the internet but can't seem to find anything. Thanks in advance!

 

[Tradesman1]

Mobo/CPU? Sounds like it's INtel, so should be able to just enable XMP and select profile 1, then check in Win with CPU-Z (free program). Check in the memory tab, will show the true freq of 833 in the frequency pane if running at 1866