I have an XPS with soldered RAM, I don’t know for how long but Manjaro seems to be only using 8GB. I became suspicious after noticing some blurry text/scrolling issues in Chrome.
Output of two inxi commands, one for my general system and the other for my memory.
memtest seems to have only noticed 8GB also.
inxi -Fazy output:
System:
Kernel: 4.19.207-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-4.19-x86_64
root=UUID=8da11d46-7428-4ae1-a49b-34e15d5508b0 rw quiet
Console: tty pts/1 wm: kwin_x11 DM: SDDM Distro: Manjaro Linux
base: Arch Linux
Machine:
Type: Laptop System: Dell product: XPS 13 9370 v: N/A serial: <filter>
Chassis: type: 9 serial: <filter>
Mobo: Dell model: 0F6P3V v: A00 serial: <filter> UEFI-[Legacy]: Dell
v: 1.0.2 date: 12/06/2017
Battery:
ID-1: BAT0 charge: 27.0 Wh (61.4%) condition: 44.0/52.0 Wh (84.5%)
volts: 7.6 min: 7.6 model: SMP DELL G8VCF6C type: Li-poly serial: <filter>
status: Discharging
CPU:
Info: Quad Core model: Intel Core i7-8550U socket: BGA1356 (U3E1)
note: check bits: 64 type: MT MCP arch: Kaby Lake note: check family: 6
model-id: 8E (142) stepping: A (10) microcode: EA cache: L1: 256 KiB
L2: 8 MiB L3: 8 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 31872
Speed: 900 MHz min/max: 400/4000 MHz base/boost: 3700/1800 volts: 1.1 V
ext-clock: 100 MHz Core speeds (MHz): 1: 900 2: 900 3: 901 4: 900 5: 900
6: 900 7: 900 8: 900
Vulnerabilities: Type: itlb_multihit status: KVM: Split huge pages
Type: l1tf
mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds mitigation: Microcode
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel UHD Graphics 620 vendor: Dell driver: i915 v: kernel
bus-ID: 00:02.0 chip-ID: 8086:5917 class-ID: 0300
Device-2: Realtek Integrated_Webcam_HD type: USB driver: uvcvideo
bus-ID: 1-5:2 chip-ID: 0bda:58f4 class-ID: 0e02 serial: <filter>
Display: server: X.Org 1.20.13 compositor: kwin_x11 driver:
loaded: modesetting alternate: fbdev,vesa display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2")
s-diag: 582mm (22.9")
Monitor-1: eDP-1 res: 1920x1080 hz: 60 dpi: 166 size: 294x165mm (11.6x6.5")
diag: 337mm (13.3")
OpenGL: renderer: Mesa Intel UHD Graphics 620 (KBL GT2) v: 4.6 Mesa 21.2.2
direct render: Yes
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell driver: snd_hda_intel
v: kernel alternate: snd_soc_skl bus-ID: 00:1f.3 chip-ID: 8086:9d71
class-ID: 0403
Sound Server-1: ALSA v: k4.19.207-1-MANJARO running: yes
Sound Server-2: JACK v: 1.9.19 running: no
Sound Server-3: PulseAudio v: 15.0 running: yes
Sound Server-4: PipeWire v: 0.3.37 running: no
Network:
Device-1: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter
vendor: Rivet Networks Killer 1435 Wireless-AC driver: ath10k_pci v: kernel
port: f040 bus-ID: 02:00.0 chip-ID: 168c:003e class-ID: 0280
IF: wlp2s0 state: up mac: <filter>
IF-ID-1: br-1cd3b4553ed9 state: down mac: <filter>
IF-ID-2: docker0 state: down mac: <filter>
Bluetooth:
Device-1: Foxconn / Hon Hai type: USB driver: btusb v: 0.8 bus-ID: 1-7:3
chip-ID: 0489:e0a2 class-ID: e001
Report: rfkill ID: hci0 rfk-id: 1 state: down bt-service: enabled,running
rfk-block: hardware: no software: yes address: see --recommends
Drives:
Local Storage: total: 596.19 GiB used: 74.63 GiB (12.5%)
ID-1: /dev/mmcblk0 maj-min: 179:0 vendor: Samsung model: ED4QT
size: 119.25 GiB block-size: physical: 512 B logical: 512 B type: SSD
serial: <filter> scheme: MBR
SMART Message: Unknown smartctl error. Unable to generate data.
ID-2: /dev/nvme0n1 maj-min: 259:0 vendor: Toshiba
model: KXG50ZNV512G NVMe 512GB size: 476.94 GiB block-size: physical: 512 B
logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
rev: AADA4102 temp: 46 Celsius C scheme: MBR
SMART: yes health: PASSED on: 50d 12h cycles: 1,264
read-units: 2,678,106 [1.37 TB] written-units: 4,194,902 [2.14 TB]
Partition:
ID-1: / raw-size: 476.93 GiB size: 468.45 GiB (98.22%)
used: 74.63 GiB (15.9%) fs: ext4 block-size: 4096 B dev: /dev/nvme0n1p1
maj-min: 259:1
Swap:
Alert: No swap data was found.
Sensors:
System Temperatures: cpu: 45.0 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 209 Uptime: 0m wakeups: 92 Memory: 7.61 GiB
used: 1.12 GiB (14.7%) Init: systemd v: 249 tool: systemctl Compilers:
gcc: 11.1.0 clang: 12.0.1 Packages: pacman: 1457 lib: 422 flatpak: 0
Shell: Bash (sudo) v: 5.1.8 running-in: yakuake inxi: 3.3.06
inxi -mxx output:
Memory: RAM: total: 7.61 GiB used: 1.12 GiB (14.8%)
Array-1: capacity: 16 GiB slots: 2 EC: None max-module-size: 8 GiB note: est.
Device-1: System Board Memory size: 8 GiB speed: 2133 MT/s type: LPDDR3 manufacturer: Micron
part-no: MT52L1G32D4PG-093
Device-2: System Board Memory size: 8 GiB speed: 2133 MT/s type: LPDDR3 manufacturer: Micron
part-no: MT52L1G32D4PG-093
Memtest appears to only test for 8008M of RAM, but in the DMI Memory Device Info screen, reports two RAM units:
System Board → Memor8192 → 2133MHz → LPDDR3 → Row of chips
Mapped to
000000000000 - 0001ffffffff
System Board → Memor8192 → 2133MHz → LPDDR3 → Row of chips
Mapped to
000200000000 - 0003ffffffff
Any help is appreciated, though I suspect my RAM is just dead and now I have an irreparable half RAM machine. Sorry for posting little memtest data, I cannot include links or images.