[SOLVED] Invalid RAM Size

P

prof3c1

New Member
Jun 29, 2023
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0
1
Hello community,
proxmox.png
Today i did fresh install of Proxmox. While doing first setup I discovered that my system is showing only 11,62GiB RAM as usable from 24Gbit

I checked ram with dmidecode -t memory -q and here is result
Code: 
SMBIOS 2.8 present.

Handle 0x000F, DMI type 16, 23 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: None
        Maximum Capacity: 128 GB
        Error Information Handle: 0x000E
        Number Of Devices: 4

Handle 0x0016, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x000F
        Error Information Handle: 0x0015
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 4 GB
        Form Factor: DIMM
        Set: None
        Locator: DIMM 0
        Bank Locator: P0 CHANNEL A
        Type: DDR4
        Type Detail: Synchronous Unbuffered (Unregistered)
        Speed: 2133 MT/s
        Manufacturer: Unknown
        Serial Number: 00000000
        Asset Tag: Not Specified
        Part Number: 2800 C16 Series
        Rank: 1
        Configured Memory Speed: 2133 MT/s
        Minimum Voltage: 1.2 V
        Maximum Voltage: 1.2 V
        Configured Voltage: 1.2 V

Handle 0x0019, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x000F
        Error Information Handle: 0x0018
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 8 GB
        Form Factor: DIMM
        Set: None
        Locator: DIMM 1
        Bank Locator: P0 CHANNEL A
        Type: DDR4
        Type Detail: Synchronous Unbuffered (Unregistered)
        Speed: 2133 MT/s
        Manufacturer: Kingston
        Serial Number: A226E0F2
        Asset Tag: Not Specified
        Part Number: KHX2666C15D4/8G
        Rank: 2
        Configured Memory Speed: 2133 MT/s
        Minimum Voltage: 1.2 V
        Maximum Voltage: 1.2 V
        Configured Voltage: 1.2 V

Handle 0x001C, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x000F
        Error Information Handle: 0x001B
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 4 GB
        Form Factor: DIMM
        Set: None
        Locator: DIMM 0
        Bank Locator: P0 CHANNEL B
        Type: DDR4
        Type Detail: Synchronous Unbuffered (Unregistered)
        Speed: 2133 MT/s
        Manufacturer: Unknown
        Serial Number: 00000000
        Asset Tag: Not Specified
        Part Number: 2800 C16 Series
        Rank: 1
        Configured Memory Speed: 2133 MT/s
        Minimum Voltage: 1.2 V
        Maximum Voltage: 1.2 V
        Configured Voltage: 1.2 V

Handle 0x001F, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x000F
        Error Information Handle: 0x001E
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 8 GB
        Form Factor: DIMM
        Set: None
        Locator: DIMM 1
        Bank Locator: P0 CHANNEL B
        Type: DDR4
        Type Detail: Synchronous Unbuffered (Unregistered)
        Speed: 2133 MT/s
        Manufacturer: Kingston
        Serial Number: A726E116
        Asset Tag: Not Specified
        Part Number: KHX2666C15D4/8G
        Rank: 2
        Configured Memory Speed: 2133 MT/s
        Minimum Voltage: 1.2 V
        Maximum Voltage: 1.2 V
        Configured Voltage: 1.2 V

All other operating systems as Ubunut & Windows. These system are detecting correct ammount of RAM which is 24 Gbit.

I tried to disable XMPP profile in BIOS to see if it will affect it but without any result.

Thanks for the help
 
Last edited:
Code: 
Handle 0x0010, DMI type 18, 23 bytes
32-bit Memory Error Information
        Type: OK
        Granularity: Unknown
        Operation: Unknown
        Vendor Syndrome: Unknown
        Memory Array Address: Unknown
        Device Address: Unknown
        Resolution: Unknown

Handle 0x0017, DMI type 18, 23 bytes
32-bit Memory Error Information
        Type: OK
        Granularity: Unknown
        Operation: Unknown
        Vendor Syndrome: Unknown
        Memory Array Address: Unknown
        Device Address: Unknown
        Resolution: Unknown

Handle 0x001A, DMI type 18, 23 bytes
32-bit Memory Error Information
        Type: OK
        Granularity: Unknown
        Operation: Unknown
        Vendor Syndrome: Unknown
        Memory Array Address: Unknown
        Device Address: Unknown
        Resolution: Unknown

Handle 0x001D, DMI type 18, 23 bytes
32-bit Memory Error Information
        Type: OK
        Granularity: Unknown
        Operation: Unknown
        Vendor Syndrome: Unknown
        Memory Array Address: Unknown
        Device Address: Unknown
        Resolution: Unknown

Handle 0x0020, DMI type 18, 23 bytes
32-bit Memory Error Information
        Type: OK
        Granularity: Unknown
        Operation: Unknown
        Vendor Syndrome: Unknown
        Memory Array Address: Unknown
        Device Address: Unknown
        Resolution: Unknown

root@proxmox:~# dmidecode --type 33
# dmidecode 3.4
Getting SMBIOS data from sysfs.
SMBIOS 2.8 present.
 
Did you install Proxmox in BIOS Lecagy mode instead of UEFI? Maybe WIndows does boot in UEFI mode. What is the output of proxmox-boot-tool status?
 
leesteken said:
Did you install Proxmox in BIOS Lecagy mode instead of UEFI? Maybe WIndows does boot in UEFI mode. What is the output of proxmox-boot-tool status?
Click to expand...
Hello,

Thank you for your reply.
I installed it in UEFI mode and NEM testing from live boot.
Code: 
Re-executing '/usr/sbin/proxmox-boot-tool' in new private mount namespace..
E: /etc/kernel/proxmox-boot-uuids does not exist.
 
leesteken said:
That does not convince me that you are actually booting in UEFI mode. What is the output of ls /sys/firmware/efi/?
Click to expand...
root@proxmox:/# ls /sys/firmware/efi
config_table efivars fw_platform_size fw_vendor runtime runtime-map systab
 
prof3c1 said:
root@proxmox:/# ls /sys/firmware/efi
config_table efivars fw_platform_size fw_vendor runtime runtime-map systab
Click to expand...
Then I don't know. Try swapping the 4GB and 8GB modules?
EDIT: And try updating the motherboard BIOS, it may have improved memory compatibility or other fixes. Windows might read ACPI tables differently and your vendor might have broken it for Linux.
 
Last edited:
leesteken said:
Then I don't know. Try swapping the 4GB and 8GB modules?
EDIT: And try updating the motherboard BIOS, it may have improved memory compatibility or other fixes. Windows might read ACPI tables differently and your vendor might have broken it for Linux.
Click to expand...
Unfortunately i try all you mentioned without success :(
 
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