I have a N36L microserver that I'm using as an offsite backup destination. 

Physically, it has 6GB of RAM installed (2GB and 4GB)

Unraid can seemingly see 6GB of the memory, however is only able to use 2GB of it. 

 

Can anything think of what the issue is? I'm at a bit of a loss. 

Command outputs:

dmidecode -t17
 

Handle 0x0016, DMI type 17, 28 bytes
Memory Device
        Array Handle: 0x0014
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 4 GB
        Form Factor: DIMM
        Set: None
        Locator: DIMM0
        Bank Locator: BANK0
        Type: Other
        Type Detail: Synchronous
        Speed: 1333 MT/s
        Manufacturer: Manufacturer00
        Serial Number: SerNum00
        Asset Tag: Not Specified
        Part Number: ModulePartNumber00
        Rank: Unknown

Handle 0x0018, DMI type 17, 28 bytes
Memory Device
        Array Handle: 0x0014
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 2 GB
        Form Factor: DIMM
        Set: None
        Locator: DIMM1
        Bank Locator: BANK1
        Type: Other
        Type Detail: Synchronous
        Speed: 1333 MT/s
        Manufacturer: Manufacturer01
        Serial Number: SerNum01
        Asset Tag: Not Specified
        Part Number: ModulePartNumber01
        Rank: Unknown

 

lshw -short

 

/0                         bus        Motherboard
/0/0                       memory     64KiB BIOS
/0/3                       processor  AMD Athlon(tm) II Neo N36L Dual-Core Processor
/0/3/4                     memory     256KiB L1 cache
/0/3/5                     memory     2MiB L2 cache
/0/14                      memory     6GiB System Memory
/0/14/0                    memory     4GiB DIMM Synchronous 1333 MHz (0.8 ns)
/0/14/1                    memory     2GiB DIMM Synchronous 1333 MHz (0.8 ns)
/0/100                     bridge     RS880 Host Bridge
/0/100/1                   bridge     AMD RS780/RS880 PCI to PCI bridge (int gfx)
/0/100/1/5                 display    RS880M [Mobility Radeon HD 4225/4250]
/0/100/6                   bridge     RS780 PCI to PCI bridge (PCIE port 2)
/0/100/6/0      eth0       network    NetXtreme BCM5723 Gigabit Ethernet PCIe
/0/100/11       scsi2      storage    SB7x0/SB8x0/SB9x0 SATA Controller [IDE mode]
/0/100/11/0     /dev/sdb   disk       14TB WDC WD140EDGZ-11
/0/100/11/0/1   /dev/sdb1  volume     12TiB EFI partition
/0/100/11/1     /dev/sdc   disk       14TB WDC WD140EDGZ-11
/0/100/11/1/1   /dev/sdc1  volume     12TiB EFI partition
/0/100/12                  bus        SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
/0/100/12.2                bus        SB7x0/SB8x0/SB9x0 USB EHCI Controller
/0/100/13                  bus        SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
/0/100/13.2                bus        SB7x0/SB8x0/SB9x0 USB EHCI Controller
/0/100/14                  bus        SBx00 SMBus Controller
/0/100/14.1                storage    SB7x0/SB8x0/SB9x0 IDE Controller
/0/100/14.3                bridge     SB7x0/SB8x0/SB9x0 LPC host controller
/0/100/14.4                bridge     SBx00 PCI to PCI Bridge
/0/100/16                  bus        SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
/0/100/16.2                bus        SB7x0/SB8x0/SB9x0 USB EHCI Controller
/0/101                     bridge     Family 10h Processor HyperTransport Configuration
/0/102                     bridge     Family 10h Processor Address Map
/0/103                     bridge     Family 10h Processor DRAM Controller
/0/104                     bridge     Family 10h Processor Miscellaneous Control
/0/105                     bridge     Family 10h Processor Link Control
/0/1                       system     Motherboard registers
/0/2                       system     AT Real-Time Clock
/0/4                       system     Motherboard registers
/0/5                       system     Motherboard registers
/0/6                       system     Motherboard registers
/0/7                       system     System Board
/0/8            scsi0      storage    
/0/8/0.0.0      /dev/sda   disk       64GB Flash Drive FIT
/0/8/0.0.0/0    /dev/sda   disk       64GB 
/0/8/0.0.0/0/1  /dev/sda1  volume     59GiB Windows FAT volume

 

Free

 

               total        used        free      shared  buff/cache   available
Mem:         1907192      595476      163860      833428     1147856      293636

 

 

I have also attached the diagnostics file if that'll be of use.

 

Thanks for your help. 

 

backupserver-diagnostics-20230815-1152.zip

That is strange, does the 4GB stick work if alone?

The tricky thing with answering that question is that I'm on the opposite side of the country from the server so can't do any hardware-based troubleshooting. 

 

So the answer is I don't know. Sorry.