Replacing Memory Modules
Each storage controller has eight memory slots. You can increase the memory capacity of the NAS by
upgrading the memory module.
Use only QNAP modules of the same type and capacity to maintain system performance and stability. You
can purchase QNAP memory modules from authorized resellers.
Warning
•
Moving fan blades: Keep your hands and other body parts away from moving fan
blades.
•
Other moving components: Keep your hands and other body parts away from other
moving components.
Important
QNAP recommends installing modules in pairs.
• Ensure that each pair uses identical modules.
• Install the pairs in sequence and follow the assigned slots for each pair.
• Install memory modules in groups of four or eight. When installing four memory
modules, install the memory in slots 1, 3, 6, and 8.
For details on slot numbering, see System Board.
Module Pair Slot Number
First pair Slots 1 and 8
Second pair Slots 3 and 6
Third pair Slots 2 and 7
Fourth pair Slots 4 and 5
Warning
• Only qualified personnel should perform the following steps. Failure to follow
instructions can result in serious injury or death.
• Observe electrostatic discharge (ESD) procedures to avoid damage to components.
1. Power off the NAS.
2. Remove the storage controller.
For details, see Removing a Storage Controller.
3. Remove an existing module.
ES2486dc User Guide
Installation and Configuration 31
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