ASROCK FM2A75 Pro4-M Manual De Instrucciones página 19

5. If you adopt DDR3 2600/2400/2133/1866/1600 memory
modules on this motherboard, it is recommended to install
them on DDR3_A2 and DDR3_B2 slots.
Installing a DIMM
Please make sure to disconnect the power supply before add-
ing or removing DIMMs or 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.
The DIMM only fits in one correct orientation. It will cause per-
manent damage to the motherboard and the DIMM if you force
the DIMM into the slot at incorrect orientation.
Step 3. Firmly insert the DIMM into the slot until the retaining clips at both
ends fully snap back in place and the DIMM is properly seated.
ASRock FM2A75 Pro4-M Motherboard
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