您有什么建议可以帮助我恢复全部物理内存吗？我已经在 bios 中搜索并将 mem=8000mb 命令行添加到我的 grub 中。
dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.2.1 present.
SMBIOS implementations newer than version 3.2.0 are not
fully supported by this version of dmidecode.
Handle 0x0009, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 32 GB
Error Information Handle: 0x0008
Number Of Devices: 2
Handle 0x0010, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0009
Error Information Handle: 0x000F
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: SODIMM
Set: None
Locator: Bottom - Slot 1 (left)
Bank Locator: P0 CHANNEL A
Type: Unknown
Type Detail: Unknown
Speed: Unknown
Manufacturer: Unknown
Serial Number: Unknown
Asset Tag: Not Specified
Part Number: Unknown
Rank: Unknown
Configured Memory Speed: Unknown
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: Unknown
Handle 0x0012, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0009
Error Information Handle: 0x0011
Total Width: 64 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: SODIMM
Set: None
Locator: Bottom - Slot 2 (right)
Bank Locator: P0 CHANNEL B
Type: DDR4
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 2400 MT/s
Manufacturer: A-DATA Technology
Serial Number: 03FE0100
Asset Tag: Not Specified
Part Number: AO1P26KC8T1-BXPS
Rank: 1
Configured Memory Speed: 2400 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
free -m
total utilisé libre partagé tamp/cache disponible
Mem: 5430 1090 2904 8 1435 4071
Partition d'échange: 7628 0 7628
cat /proc/meminfo
MemTotal: 5561136 kB
MemFree: 2973908 kB
MemAvailable: 4168464 kB
Buffers: 85192 kB
Cached: 1285988 kB
SwapCached: 0 kB
Active: 1296168 kB
Inactive: 865032 kB
Active(anon): 791476 kB
Inactive(anon): 7132 kB
Active(file): 504692 kB
Inactive(file): 857900 kB
Unevictable: 16 kB
Mlocked: 16 kB
SwapTotal: 7812092 kB
SwapFree: 7812092 kB
Dirty: 256 kB
Writeback: 0 kB
AnonPages: 790120 kB
Mapped: 377264 kB
Shmem: 8576 kB
KReclaimable: 98504 kB
Slab: 282468 kB
SReclaimable: 98504 kB
SUnreclaim: 183964 kB
KernelStack: 10320 kB
PageTables: 14336 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 10592660 kB
Committed_AS: 4631600 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 31540 kB
VmallocChunk: 0 kB
Percpu: 17408 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
FileHugePages: 0 kB
FilePmdMapped: 0 kB
CmaTotal: 0 kB
CmaFree: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
Hugetlb: 0 kB
DirectMap4k: 347460 kB
DirectMap2M: 5345280 kB
DirectMap1G: 2097152 kB
dmesg | grep -i memory
[ 0.004619] check: Scanning 1 areas for low memory corruption
[ 0.005246] Early memory node ranges
[ 0.024230] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.024232] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff]
[ 0.024233] PM: Registered nosave memory: [mem 0x09ed0000-0x09ffffff]
[ 0.024234] PM: Registered nosave memory: [mem 0x0a200000-0x0a20afff]
[ 0.024235] PM: Registered nosave memory: [mem 0x39cec000-0x39cecfff]
[ 0.024237] PM: Registered nosave memory: [mem 0x39cf9000-0x39cf9fff]
[ 0.024237] PM: Registered nosave memory: [mem 0x39cfa000-0x39cfafff]
[ 0.024238] PM: Registered nosave memory: [mem 0x39d08000-0x39d08fff]
[ 0.024239] PM: Registered nosave memory: [mem 0x57321000-0x57321fff]
[ 0.024241] PM: Registered nosave memory: [mem 0x577f5000-0x57802fff]
[ 0.024242] PM: Registered nosave memory: [mem 0x5a3f5000-0x5a51cfff]
[ 0.024242] PM: Registered nosave memory: [mem 0x5a51d000-0x5a55bfff]
[ 0.024243] PM: Registered nosave memory: [mem 0x5a55c000-0x5aaf1fff]
[ 0.024243] PM: Registered nosave memory: [mem 0x5aaf2000-0x5db68fff]
[ 0.024244] PM: Registered nosave memory: [mem 0x5f000000-0xdfffffff]
[ 0.024245] PM: Registered nosave memory: [mem 0xe0000000-0xf7ffffff]
[ 0.024245] PM: Registered nosave memory: [mem 0xf8000000-0xfbffffff]
[ 0.024245] PM: Registered nosave memory: [mem 0xfc000000-0xfcffffff]
[ 0.024246] PM: Registered nosave memory: [mem 0xfd000000-0xfdffffff]
[ 0.024246] PM: Registered nosave memory: [mem 0xfe000000-0xfe6fffff]
[ 0.024247] PM: Registered nosave memory: [mem 0xfe700000-0xfe700fff]
[ 0.024247] PM: Registered nosave memory: [mem 0xfe701000-0xfeb7ffff]
[ 0.024247] PM: Registered nosave memory: [mem 0xfeb80000-0xfec01fff]
[ 0.024248] PM: Registered nosave memory: [mem 0xfec02000-0xfec0ffff]
[ 0.024248] PM: Registered nosave memory: [mem 0xfec10000-0xfec10fff]
[ 0.024248] PM: Registered nosave memory: [mem 0xfec11000-0xfecfffff]
[ 0.024249] PM: Registered nosave memory: [mem 0xfed00000-0xfed00fff]
[ 0.024249] PM: Registered nosave memory: [mem 0xfed01000-0xfed3ffff]
[ 0.024249] PM: Registered nosave memory: [mem 0xfed40000-0xfed44fff]
[ 0.024250] PM: Registered nosave memory: [mem 0xfed45000-0xfed7ffff]
[ 0.024250] PM: Registered nosave memory: [mem 0xfed80000-0xfed8ffff]
[ 0.024250] PM: Registered nosave memory: [mem 0xfed90000-0xfedc1fff]
[ 0.024251] PM: Registered nosave memory: [mem 0xfedc2000-0xfedcffff]
[ 0.024251] PM: Registered nosave memory: [mem 0xfedd0000-0xfedd3fff]
[ 0.024251] PM: Registered nosave memory: [mem 0xfedd4000-0xfedd5fff]
[ 0.024252] PM: Registered nosave memory: [mem 0xfedd6000-0xfedfffff]
[ 0.024252] PM: Registered nosave memory: [mem 0xfee00000-0xfeefffff]
[ 0.024252] PM: Registered nosave memory: [mem 0xfef00000-0xfeffffff]
[ 0.024253] PM: Registered nosave memory: [mem 0xff000000-0xffffffff]
[ 0.048834] Memory: 5412228K/5692352K available (14339K kernel code, 2397K rwdata, 4952K rodata, 2712K init, 4992K bss, 280124K reserved, 0K cma-reserved)
[ 0.259516] Freeing SMP alternatives memory: 40K
[ 0.389753] x86/mm: Memory block size: 128MB
[ 0.559576] Freeing initrd memory: 48372K
[ 0.564344] check: Scanning for low memory corruption every 60 seconds
[ 1.108019] Freeing unused decrypted memory: 2040K
[ 1.108750] Freeing unused kernel image memory: 2712K
[ 1.109521] Freeing unused kernel image memory: 2008K
[ 1.109930] Freeing unused kernel image memory: 1192K
[ 2.963206] [TTM] Zone kernel: Available graphics memory: 2780568 KiB
[ 2.963209] [TTM] Zone dma32: Available graphics memory: 2097152 KiB
[ 2.963567] [drm] amdgpu: 2048M of VRAM memory ready
[ 2.963578] [drm] amdgpu: 3072M of GTT memory ready.
提前致谢。