I got 4 slots of memory fitted with 4 memory sticks.
Originally, I had 2 corsair xms3 4gb 2x2gb memory stick kit but 1 of the 4 sticks broke due to circumstances, which leaves me with 1 kit and a half.
Anyway slots 1 to 3 are fitted with the the corsair sticks and on the 4th slot, I fitted a stick of another brand but with the same size and frequency. All 4 of the sticks run at 1333mhz.
The manual for my mobo, which is a gigabyte 880 ga ud3h rev 2.2, the 4 slots are divided to 2 channels, slots 1-2 for channel 0 and slot 3-4 for channel 1.
And here's how I installed my memory sticks.
Slot 1: Corsair Xms3 Slot 2: Corsair Xms3 Slot 3: Corsair Xms3 Slot 4: Crucial 2gb
Remember that I originally had 2 corsair kits but one of the sticks broke, which left me with 3 corsair sticks which is effectively 1 kit and a half, while I took a crucial 2gb stick to replace the broken corsair stick.
Now my expectation are these, that slot 1-2 (channel 0) will run at dual channel while slots 3-4 (channel 1) will run at single channel since they don't have the same brand.
But the cpu-z report I got is different,
As you can see, slots 2-4 (which includes the crucial 2gb stick) are running in dual and slot 1 (despite being a corsair stick) is running in single.
Now this poses 3 question in my mind.
How is it that out of all the 4? the corsair stick gets singled out instead of the crucial stick?
Why are there 3 sticks running in dual mode if dual mode means 2 sticks working together as one? shouldn't it be only 2 sticks for slot 1 and 2? the rest should be running in single mode.