Memory timings issue with P67A-UD3P-B3

[ex58]

Channel A / B........?
For Dual channel use memory slots 1-3 or 2-4.
Single module you can install in any memory slot.

[Patchu]

Channel A / B........?
For Dual channel use memory slots 1-3 or 2-4.
Single module you can install in any memory slot.

Channel A is slots 1 and 2, channel B is slots 2 and 3. I'm fully aware of how dual and single channel work; when I was running dual channel I used slots 2 and 4, although I used 1 and 3 when I first put the PC together.

[ex58]

Channel A is slots 1 and 2, channel B is slots 2 and 3.

Channel "A" is slots 1 and 3.
Channel "B" is slots 2 and 4.

[Patchu]

Channel A is slots 1 and 2, channel B is slots 2 and 3.

Channel "A" is slots 1 and 3.
Channel "B" is slots 2 and 4.

Hmm, I think I should have said channel 0 and 1 instead, but either way I'm talking about the channels themselves, not halves of the channels.
Taken straight from the motherboard manual:
Channel 0: DDR3_1, DDR3_2
Channel 1: DDR3_3, DDR3_4