群晖218+增加内存

这里可查CPU、内存型号
https://kb.synology.com/en-us/DSM/tutorial/What_kind_of_CPU_does_my_NAS_have

• 群晖型号：DS218+
• CPU ：Intel Celeron J3355 Dual Core
• 架构： Apollolake(x64)：
• 内存：DDR3L SODIMM 2GB

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群晖 DS218+ 原装内存只有 2GB，机器内预留了一个内存插槽，准备再加一个。

看了网上说群晖的机子认内存，而且最大识别到8G，也有说16G的，可以命令查询。

查看群晖内存 sudo dmidecode -t memory：

$ sudo dmidecode -t memory
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0023, DMI type 16, 23 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: None
        Maximum Capacity: 16 GB
        Error Information Handle: No Error
        Number Of Devices: 1

Handle 0x0025, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x0023
        Error Information Handle: No Error
        Total Width: 8 bits
        Data Width: 8 bits
        Size: 2048 MB
        Form Factor: SODIMM
        Set: None
        Locator: ChannelB-DIMM0
        Bank Locator: BANK 1
        Type: DDR3
        Type Detail: Synchronous
        Speed: 1600 MT/s
        Manufacturer: 0824
        Serial Number: 25073816
        Asset Tag: 9876543210
        Part Number: D3SS56161XL10AA
        Rank: Unknown
        Configured Memory Speed: 1600 MT/s
        Minimum Voltage: Unknown
        Maximum Voltage: Unknown
        Configured Voltage: Unknown

可以看到 Maximum Capacity: 16 GB

我这里只考虑加个 4G 的就行了，总共 6G，目前需求不大。。。

京东随便买了一个：

• 协德 (xiede)1.35V低电压版DDR3L 1866 1867 4G笔记本内存条

我去，安上去直接翻车了。。。群晖不开机。

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家里有个老的 Dell 笔记本是 8G 内存（2 x 4G），有个金士顿的

把金士顿的调换过来，群晖可以开机了，笔记本也没问题。

$ sudo dmidecode -t memory
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0023, DMI type 16, 23 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: None
        Maximum Capacity: 16 GB
        Error Information Handle: No Error
        Number Of Devices: 2

Handle 0x0024, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x0023
        Error Information Handle: No Error
        Total Width: 8 bits
        Data Width: 8 bits
        Size: 4096 MB
        Form Factor: SODIMM
        Set: None
        Locator: ChannelA-DIMM0
        Bank Locator: BANK 0
        Type: DDR3
        Type Detail: Synchronous
        Speed: 1600 MT/s
        Manufacturer: Kingston
        Serial Number: 19041716
        Asset Tag: 9876543210
        Part Number: HP16D3LS1KBG/4G
        Rank: Unknown
        Configured Memory Speed: 1600 MT/s
        Minimum Voltage: Unknown
        Maximum Voltage: Unknown
        Configured Voltage: Unknown

Handle 0x0025, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x0023
        Error Information Handle: No Error
        Total Width: 8 bits
        Data Width: 8 bits
        Size: 2048 MB
        Form Factor: SODIMM
        Set: None
        Locator: ChannelB-DIMM0
        Bank Locator: BANK 1
        Type: DDR3
        Type Detail: Synchronous
        Speed: 1600 MT/s
        Manufacturer: 0824
        Serial Number: 25073816
        Asset Tag: 9876543210
        Part Number: D3SS56161XL10AA
        Rank: Unknown
        Configured Memory Speed: 1600 MT/s
        Minimum Voltage: Unknown
        Maximum Voltage: Unknown
        Configured Voltage: Unknown

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