Installing Memory Modules (So-Dimm) - ASROCK Q370D4-P1 User Manual

2.3 Installing Memory Modules (SO-DIMM)

This motherboard provides two 260-pin DDR4 (Double Data Rate 4) SO-DIMM
slots.
It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4 slot;
otherwise, this motherboard and SO-DIMM may be damaged.
The SO-DIMM only fits in one correct orientation. It will cause permanent damage to
the motherboard and the SO-DIMM if you force the SO-DIMM into the slot at incorrect
orientation.
1. Carefully insert the SO-DIMM memory modules into the slot at a 30-degree angle.
2. Push down until the modules snap into place.
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