Issue With RAM Bandwidth After Upgrading to 16GB

[Eluder]

Just wondering if anyone can comment on the below screenshot.
I just upgraded to 16GB of G.Skill DDR3-1600 (went from 2 DIMMs to 4 of F3-12800CL9D-8GBXL) and noticed that CPU-Z reports the max bandwidth as being DDR3-1333 which is strange as I'm using the same kit for both sets of 8GB RAM.

Is this normal for CPU-Z to report, or do I have an issue somewhere? I'm using the XMP setting in the BIOS, so everything should be pulling from the SPD.

Note, that Slot 1 is the new memory, and Slot 2 is the old memory. Slot 3 reports the same as Slot 1, while Slot 4 reports the same as Slot 2.

I'm using an Asus P8P67 Deluxe B3 board which is listed as being compatible on the G.Skill website.

Any help would be appreciated.

http://imageshack.us/f/535/cpuzdw.jpg/

Thanks.

[Tradesman]

The Maxbandwidth setting is the spec for default boot not actual maxbandwidth, and comes from the SPD, to see what you are running check the Memory Tab instead of the SPD tab, if set up correctly should show 800 (for DDR (Double Data Rate) so 800 x 2 =1600