FreeNAS 11 is not allocating all memory

srusso23

Cadet
Joined
Feb 10, 2020
Messages
7
I am building a FreeNAS system (first time) on a Dell Precision 490. It has 8 x 2GB DDR2 for a total of 16GB. BIOS seeing all memory. FreeNAS shell "dmidecode -t memory" shows all the memory too. I looked through the BIOS and it doesn't appear to be reserving memory or anything. (Running latest BIOS) Please let me know if you have any ideas. Here is the output.

Code:
Last login: Sun Feb 9 00:55:17 on pts/1

FreeBSD 11.3-RELEASE-p5 (FreeNAS.amd64) #0 r325575+8ed1cd24b60(HEAD): Mon Jan 27 18:07:23 UTC 2020

FreeNAS (c) 2009-2020, The FreeNAS Development Team

All rights reserved.

FreeNAS is released under the modified BSD license.

For more information, documentation, help or support, go here:

http://freenas.org

Welcome to FreeNAS

Warning: settings changed through the CLI are not written to

the configuration database and will be reset on reboot.

root@freenas[~]# dmidecode -t memory

# dmidecode 3.2

Scanning /dev/mem for entry point.

SMBIOS 2.3 present.

Handle 0x1000, DMI type 16, 15 bytes

Physical Memory Array

Location: System Board Or Motherboard

Use: System Memory

Error Correction Type: Single-bit ECC

Maximum Capacity: 32 GB

Error Information Handle: Not Provided

Number Of Devices: 8

Handle 0x1100, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x1000

Error Information Handle: No Error

Total Width: 72 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: FB-DIMM

Set: None

Locator: DIMM 1

Bank Locator: Not Specified

Type: DDR2 FB-DIMM

Type Detail: Synchronous

Speed: 667 MT/s

Manufacturer: 802C80B3802C

Serial Number: DF03B2BB

Asset Tag: 010710

Part Number: 36HTF25672F667D1D3

Handle 0x1101, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x1000

Error Information Handle: No Error

Total Width: 72 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: FB-DIMM

Set: None

Locator: DIMM 2

Bank Locator: Not Specified

Type: DDR2 FB-DIMM

Type Detail: Synchronous

Speed: 667 MT/s

Manufacturer: 802C80B3802C

Serial Number: DF03B29D

Asset Tag: 010710

Part Number: 36HTF25672F667D1D3

Handle 0x1102, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x1000

Error Information Handle: No Error

Total Width: 72 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: FB-DIMM

Set: None

Locator: DIMM 3

Bank Locator: Not Specified

Type: DDR2 FB-DIMM

Type Detail: Synchronous

Speed: 667 MT/s

Manufacturer: 802C80B3802C

Serial Number: DF03B2BD

Asset Tag: 010710

Part Number: 36HTF25672F667D1D3

Handle 0x1103, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x1000

Error Information Handle: No Error

Total Width: 72 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: FB-DIMM

Set: None

Locator: DIMM 4

Bank Locator: Not Specified

Type: DDR2 FB-DIMM

Type Detail: Synchronous

Speed: 667 MT/s

Manufacturer: 802C80B3802C

Serial Number: DF03B29C

Asset Tag: 010710

Part Number: 36HTF25672F667D1D3

Handle 0x1104, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x1000

Error Information Handle: No Error

Total Width: 72 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: FB-DIMM

Set: None

Locator: DIMM 5

Bank Locator: Not Specified

Type: DDR2 FB-DIMM

Type Detail: Synchronous

Speed: 667 MT/s

Manufacturer: 802C80B3802C

Serial Number: DF03B2CE

Asset Tag: 010710

Part Number: 36HTF25672F667D1D3

Handle 0x1105, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x1000

Error Information Handle: No Error

Total Width: 72 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: FB-DIMM

Set: None

Locator: DIMM 6

Bank Locator: Not Specified

Type: DDR2 FB-DIMM

Type Detail: Synchronous

Speed: 667 MT/s

Manufacturer: 802C80B3802C

Serial Number: DF03B2B0

Asset Tag: 010710

Part Number: 36HTF25672F667D1D3

Handle 0x1106, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x1000

Error Information Handle: No Error

Total Width: 72 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: FB-DIMM

Set: None

Locator: DIMM 7

Bank Locator: Not Specified

Type: DDR2 FB-DIMM

Type Detail: Synchronous

Speed: 667 MT/s

Manufacturer: 802C80B3802C

Serial Number: DF03B2CC

Asset Tag: 010710

Part Number: 36HTF25672F667D1D3

Handle 0x1107, DMI type 17, 27 bytes

Memory Device

Array Handle: 0x1000

Error Information Handle: No Error

Total Width: 72 bits

Data Width: 64 bits

Size: 2048 MB

Form Factor: FB-DIMM

Set: None

Locator: DIMM 8

Bank Locator: Not Specified

Type: DDR2 FB-DIMM

Type Detail: Synchronous

Speed: 667 MT/s

Manufacturer: 802C80B3802C
 

srusso23

Cadet
Joined
Feb 10, 2020
Messages
7
It was showing 6GB, I enabled autotune and rebooted. Now its showing 4GB....

root@freenas[`]# dmesg | grep memory
real memory = 17179869184 (16348 MB)
avail memory = 4082085888 (3892 MB)
 

srusso23

Cadet
Joined
Feb 10, 2020
Messages
7
On dashboard it shows only 4GB of RAM now. And during install I got a notice about having less RAm then recommended. I am using this system b/c it has 16GB of RAM. I'd like it to use it. Thank you for helping yall!!
 

srusso23

Cadet
Joined
Feb 10, 2020
Messages
7
I am trying to install Windows 10 tonight, to see if Windows 10 can see all of the memory.
 

Fredda

Guru
Joined
Jul 9, 2019
Messages
608
You'll probably be faster by just booting a live linux from an USB stick.
 

srusso23

Cadet
Joined
Feb 10, 2020
Messages
7
You'll probably be faster by just booting a live linux from an USB stick.

Thank you for your reply, I may try that anyway. As a second OS to confirm. I suspect this is a bug with FreeNAS or a limitation of this older hardware.
 

srusso23

Cadet
Joined
Feb 10, 2020
Messages
7
I believe its the hardware, I installed Windows 10 last night and it showed 16GB with 2GB usable. I shut it down, removed all memory chips, re-inserted them in different spots, and booted it up, Windows 10 showed 8GB useable. Not sure whats happening, I dont believe its a FreeNAS issue but... odd none the less....
 
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