How do I expand the memory of my Synology server?
How do I expand the memory of my Synology server?
Details
This article is no longer maintained after September 2022. If your model is released after this time, or if you cannot find your model in the article, refer to its Product Manual for details.
The overall performance of your Synology NAS, including the data transmission speed and system response while multi-tasking, can be enhanced by adding memory capacity. This article provides information and instructions on memory capacity upgrades.
Resolution
Memory selection
- Not all Synology NAS models support memory expansion. Make sure the memory of your Synology device is expandable via the following methods. If "expandable" is mentioned under the Memory section, then your device's memory can be expanded:
- Select your product from the Synology Product List and go to Specs > Hardware Specs.
- Check your device's Datasheet.
- Before purchasing memory modules, check if there are any installation requirements or limitations.
- To select suitable memory modules, visit the Synology Products Compatibility List and the list of accessories. Do not install incompatible or non-Synology memory modules in case of data corruption or server malfunctions.1
Memory expansion
- Shut down your device. Disconnect all cables to prevent any possible damage.
- Refer to the instructions for memory expansion in your device's Hardware Installation Guide. Make sure that you follow the recommended installation sequence.
Recommended memory configurations
To achieve better system performance, refer to the following tables for recommended combinations of memory configurations and memory capacities.
Category 1: 2 SO-DIMM slots, 2-channel memory architecture
|
Memory Channel
|
A0
|
B0
|
Total Memory
|
|---|---|---|---|
|
Module size
|
4 GB
|
4 GB
|
8 GB
|
|
16 GB
|
16 GB
|
32 GB
|
|
|
Applied Models
|
DS2419+II, DS2419+, DS1819+, DS1618+, DVA3219
|
||
Category 2: 4 UDIMM slots, 2-channel memory architecture
|
Memory Channel
|
A0
|
A1
|
B0
|
B1
|
Total Memory
|
|---|---|---|---|---|---|
|
Module size
|
4 GB
|
-
|
4 GB
|
-
|
8 GB
|
|
4 GB
|
4 GB
|
4 GB
|
4 GB
|
16 GB
|
|
|
16 GB
|
-
|
16 GB
|
-
|
32 GB
|
|
|
16 GB
|
16 GB
|
16 GB
|
16 GB
|
64 GB
|
|
|
Applied Models
|
RS2818RP+, RS2418RP+, RS2418+
|
||||
Category 3: 2 SO-DIMM slots, 2-channel memory architecture
|
Memory Channel
|
A0
|
B0
|
Total Memory
|
|---|---|---|---|
|
Module size
|
8 GB
|
8 GB
|
16 GB
|
|
16 GB
|
16 GB
|
32 GB
|
|
|
Applied Models
|
FS1018, DS3018xs, DS1621xs+
|
||
Category 4: 4 UDIMM slots, 2-channel memory architecture
|
Memory Channel
|
A0
|
A1
|
B0
|
B1
|
Total Memory
|
|---|---|---|---|---|---|
|
Module size
|
8 GB
|
-
|
8 GB
|
-
|
16 GB
|
|
8 GB
|
8 GB
|
8 GB
|
8 GB
|
32 GB
|
|
|
16 GB
|
16 GB
|
16 GB
|
16 GB
|
64 GB
|
|
|
Applied Models
|
SA3200D2, RS4017xs+, RS3617xs+, RS3618xs, RS3617RPxs, RS1619xs+
|
||||
Category 5: 4 RDIMM slots, 2-channel memory architecture
|
Memory Channel
|
A0
|
A1
|
B0
|
B1
|
Total Memory
|
|---|---|---|---|---|---|
|
Module size
|
16 GB
|
-
|
-
|
-
|
16 GB
|
|
16 GB
|
-
|
16 GB
|
-
|
32 GB
|
|
|
16 GB
|
16 GB
|
16 GB
|
16 GB
|
64 GB
|
|
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
128 GB
|
|
|
Applied Models
|
FS3600, FS3400, FS2017, SA3600, SA3400, RS18017xs+
|
||||
Category 6: 8 RDIMM slots, 4-channel memory architecture
|
Memory Channel
|
A0
|
A1
|
B0
|
B1
|
D1
|
D0
|
C1
|
C0
|
Total Memory
|
|---|---|---|---|---|---|---|---|---|---|
|
Module size
|
16 GB
|
-
|
-
|
-
|
-
|
-
|
-
|
16 GB
|
32 GB
|
|
16 GB
|
-
|
16 GB
|
-
|
-
|
16 GB
|
-
|
16 GB
|
64 GB
|
|
|
16 GB
|
16 GB
|
16 GB
|
16 GB
|
16 GB
|
16 GB
|
16 GB
|
16 GB
|
128 GB
|
|
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
256 GB
|
|
|
Applied Models
|
FS3017
|
||||||||
Category 7: 8 RDIMM slots, 6-channel memory architecture
|
Memory Channel
|
C0
|
B0
|
A0
|
A1
|
D1
|
D0
|
E0
|
F0
|
Total Memory
|
|---|---|---|---|---|---|---|---|---|---|
|
Module size
|
-
|
-
|
16 GB
|
-
|
-
|
16 GB
|
-
|
-
|
32 GB
|
|
-
|
16 GB
|
16 GB
|
-
|
-
|
16 GB
|
16 GB
|
-
|
64 GB
|
|
|
16 GB
|
16 GB
|
16 GB
|
-
|
-
|
16 GB
|
16 GB
|
16 GB
|
96 GB
|
|
|
-
|
32 GB
|
32 GB
|
-
|
-
|
32 GB
|
32 GB
|
-
|
128 GB
|
|
|
32 GB
|
32 GB
|
32 GB
|
-
|
-
|
32 GB
|
32 GB
|
32 GB
|
192 GB
|
|
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
32 GB
|
256 GB
|
|
|
Applied Models
|
FS6400
|
||||||||