available memory differs from RAM modules size

levglonti · 07-27-2019, 06:33 PM

hi all,
in my system i have installed 2pc 4gb RAM modules. Bios detects both and shows 8192mb Memory. dmidecode tool also shows both modules

--dmidecode

Quote:

[root@levglonti-workstation ~]# dmidecode --type memory
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.8 present.

Handle 0x0027, 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: Not Provided
Number Of Devices: 2

Handle 0x0029, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0027
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: DIMM
Set: None
Locator: DIMM 2
Bank Locator: CHANNEL A
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 1600 MT/s
Manufacturer: A-DATA
Serial Number: AEC60000
Asset Tag: A1_AssetTagNum0
Part Number:
Rank: 1
Configured Memory Speed: 1600 MT/s
Minimum Voltage: 1.35 V
Maximum Voltage: 1.5 V
Configured Voltage: 1.5 V

Handle 0x002A, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0027
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: DIMM
Set: None
Locator: DIMM 1
Bank Locator: CHANNEL B
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 1600 MT/s
Manufacturer: Samsung
Serial Number: 18834DBA
Asset Tag: A1_AssetTagNum1
Part Number: M378B5173EB0-YK0
Rank: 1
Configured Memory Speed: 1600 MT/s
Minimum Voltage: 1.35 V
Maximum Voltage: 1.5 V
Configured Voltage: 1.5 V

[root@levglonti-workstation ~]#

But /proc/meminfo file and free tool says, that total memory is much less:

--free

Quote:

[root@levglonti-workstation ~]# free -h
total used free shared buff/cache available
Mem: 3,7Gi 2,2Gi 192Mi 142Mi 1,3Gi 1,1Gi
Swap: 7,4Gi 10Mi 7,4Gi
[root@levglonti-workstation ~]#

What is problem and how can i solve this?

I tried to pass mem=8192 to kernel at boot time, but system hangs up immediately after i tried to boot with this parameter.
P.S.

--uname

Quote:

[root@levglonti-workstation ~]# uname -a
Linux levglonti-workstation.ge 5.1.19-300.fc30.x86_64 #1 SMP Mon Jul 22 16:32:45 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
[root@levglonti-workstation ~]#

thanks.

mrmazda · 07-28-2019, 01:20 AM

What does 'inxi -GxxSMm' report?

Code:

# inxi -GxxSMm
System:    Host: fi965 Kernel: 5.1.18-300.fc30.x86_64 x86_64 bits: 64 compiler: gcc v: 9.1.1 Desktop: KDE Plasma 5.15.5
           tk: Qt 5.12.4 wm: kwin_x11 dm: KDM Distro: Fedora release 30 (Thirty)
Machine:   Type: Desktop Mobo: ASUSTeK model: P5B-Deluxe v: Rev 1.xx serial: MB-1234567890 BIOS: American Megatrends v: 1238
           date: 09/30/2008
Memory:    RAM: total: 7.79 GiB used: 504.7 MiB (6.3%)
           Array-1: capacity: 8 GiB note: est. slots: 4 EC: None max module size: 2 GiB
           Device-1: DIMM0 size: 2 GiB info: double-bank speed: 800 MT/s type: SDRAM manufacturer: N/A part-no: N/A
           Device-2: DIMM1 size: 2 GiB info: double-bank speed: 800 MT/s type: SDRAM manufacturer: N/A part-no: N/A
           Device-3: DIMM2 size: 2 GiB info: double-bank speed: 800 MT/s type: SDRAM manufacturer: N/A part-no: N/A
           Device-4: DIMM3 size: 2 GiB info: double-bank speed: 800 MT/s type: SDRAM manufacturer: N/A part-no: N/A
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] RV620 PRO [Radeon HD 3470] vendor: Dell driver: radeon v: kernel
           bus ID: 01:00.0 chip ID: 1002:95c0
           Display: tty server: Fedora Project X.org 1.20.5 driver: modesetting unloaded: fbdev,vesa alternate: ati
           compositor: kwin_x11 resolution: 1920x1200~60Hz
           OpenGL: renderer: AMD RV620 (DRM 2.50.0 / 5.1.18-300.fc30.x86_64 LLVM 8.0.0) v: 3.3 Mesa 19.0.8 compat-v: 3.0
           direct render: Yes

levglonti · 07-28-2019, 04:10 AM

inxi -GxxSMm output

Code:

root@levglonti-workstation ~]# inxi -GxxSMm
System:    Host: levglonti-workstation.ge Kernel: 5.1.19-300.fc30.x86_64 x86_64 bits: 64 compiler: gcc v: 9.1.1 
           Desktop: MATE 1.22.1 wm: marco dm: LightDM, LXDM Distro: Fedora release 30 (Thirty) 
Machine:   Type: Desktop System: HP product: HP 285 G2 MT v: N/A serial: CZC7248TCK Chassis: type: 3 serial: N/A 
           Mobo: HP model: 2B60 v: MVB serial: N/A UEFI: AMI v: A0.12 date: 03/22/2017 
Memory:    RAM: total: 3.74 GiB used: 2.47 GiB (66.0%) 
           Array-1: capacity: 16 GiB slots: 2 EC: None max module size: 8 GiB note: est. 
           Device-1: DIMM 2 size: 4 GiB speed: 1600 MT/s type: DDR3 manufacturer: A-DATA part-no: N/A 
           Device-2: DIMM 1 size: 4 GiB speed: 1600 MT/s type: DDR3 manufacturer: Samsung part-no: M378B5173EB0-YK0 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Kaveri [Radeon R7 Graphics] vendor: Hewlett-Packard driver: radeon 
           v: kernel bus ID: 00:01.0 chip ID: 1002:1313 
           Display: server: Fedora Project X.org 1.20.5 driver: ati,radeon unloaded: fbdev,modesetting,vesa 
           compositor: marco resolution: 1920x1080~60Hz, 1280x1024~60Hz 
           OpenGL: renderer: AMD KAVERI (DRM 2.50.0 5.1.19-300.fc30.x86_64 LLVM 8.0.0) v: 4.5 Mesa 19.0.8 direct render: Yes 
[root@levglonti-workstation ~]#

pan64 · 07-28-2019, 04:33 AM

looks like not the same type (samsung/a-data).
Can you boot another OS (from usb)?

levglonti · 07-28-2019, 04:35 AM

Quote:

Originally Posted by pan64

looks like not the same type (samsung/a-data).
Can you boot another OS (from usb)?

Good idea, i will try now

levglonti · 07-28-2019, 05:12 AM

On same machine, Dxdiag utility from Windows 10x64 reports 8192mb of RAM, but Task Manager shows strange data - 8gb total, 3.8 available and 4.2gb hardware reserved

please look at this screenshot:

https://b.imge.to/2019/07/28/kQWaT.png

pan64 · 07-28-2019, 05:24 AM

you might find some useful tips here: https://superuser.com/questions/5615...d-in-windows-7

mrmazda · 07-28-2019, 07:53 AM

Quote:

Originally Posted by levglonti

Code:

Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Kaveri [Radeon R7 Graphics] vendor: Hewlett-Packard

A Kaveri APU has no dedicated RAM, relying instead on system RAM. System RAM committed to an APU will not show up as available to the system.

levglonti · 07-28-2019, 08:57 AM

Quote:

Originally Posted by mrmazda

A Kaveri APU has no dedicated RAM, relying instead on system RAM. System RAM committed to an APU will not show up as available to the system.

How can i set how many memory commit to APU? In uefi setup i already set shared video memory to 128 mb