ASRock H67M - Manual (Page 15)

15
ASRock H67M Motherboard
English
2.3 Installation of Memory Modules (DIMM)
This motherboard provides two 240-pin DDR3 (Double Data Rate 3) DIMM slots,
and supports Dual Channel Memory Technology. For dual channel configuration,
you always need to install two identical (the same brand, speed, size and chip-
type) memory modules in the DDR3 DIMM slots to activate Dual Channel Memory
Technology. Otherwise, it will operate at single channel mode.
1. It is not allowed to install a DDR or DDR2 memory module into
DDR3 slot;otherwise, this motherboard and DIMM may be
damaged.
2.
If you install only one memory module or two non-identical
memory modules, it is unable to activate the Dual Channel
Memory Technology.
3. Some DDR3 1GB double-sided DIMMs with 16 chips may not
work on this motherboard. It is not recommended to install them
on this motherboard.
Installing a DIMM
Please make sure to disconnect power supply before adding or
removing DIMMs or the system components.
Step 1. Unlock a DIMM slot by pressing the retaining clips outward.
Step 2. Align a DIMM on the slot such that the notch on the DIMM matches the
break on the slot.
notch
break
notch
break