Arch Linux does not seem to recognize all memory
Arch newbie here:
I know I've got 4GB DDR3 on this machine, but everywhere apart from lshw seem to just show up as 1,43GB?
I'm running the x86_64 version, so I know it is 64-bit, so there should be no problem there.
From lshw :
*-memory
description: System Memory
physical id: 22
slot: System board or motherboard
size: 4GiB
*-bank:0
description: DIMM DDR3 Synchronous 800 MHz (1.2 ns)
product: M471B5773EB0-CK0
vendor: Samsung
physical id: 0
serial: 96B50F7D
slot: A1_DIMM0
size: 2GiB
width: 64 bits
clock: 800MHz (1.2ns)
*-bank:1
description: DIMM DDR3 Synchronous 800 MHz (1.2 ns)
product: M471B5773EB0-CK0
vendor: Samsung
physical id: 1
serial: 96B50F40
slot: A1_DIMM1
size: 2GiB
width: 64 bits
clock: 800MHz (1.2ns)
cat /proc/meminfo | grep MemTotal :
MemTotal: 1499384 kB
$ free -m
total used free shared buffers cached
Mem: 1464 1364 99 0 21 314
-/+ buffers/cache: 1028 436
Swap: 972 10 962
$ uname -a
Linux arch 3.9.7-1-ARCH #1 SMP PREEMPT Thu Jun 20 22:45:32 CEST 2013 x86_64 GNU/Linux
Arch newbie here. I know I've got 4GB DDR3 on this machine, but everywhere apart from lshw seem to just show up as 1.43GB?
I'm running the x86_64 version, so I know it is 64-bit, so there should be no problem there. What am I missing?
From lshw :
*-memory
description: System Memory
physical id: 22
slot: System board or motherboard
size: 4GiB
*-bank:0
description: DIMM DDR3 Synchronous 800 MHz (1.2 ns)
product: M471B5773EB0-CK0
vendor: Samsung
physical id: 0
serial: 96B50F7D
slot: A1_DIMM0
size: 2GiB
width: 64 bits
clock: 800MHz (1.2ns)
*-bank:1
description: DIMM DDR3 Synchronous 800 MHz (1.2 ns)
product: M471B5773EB0-CK0
vendor: Samsung
physical id: 1
serial: 96B50F40
slot: A1_DIMM1
size: 2GiB
width: 64 bits
clock: 800MHz (1.2ns)
cat /proc/meminfo | grep MemTotal :
MemTotal: 1499384 kB
$ free -m
total used free shared buffers cached
Mem: 1464 1364 99 0 21 314
-/+ buffers/cache: 1028 436
Swap: 972 10 962
$ uname -a
Linux arch 3.9.7-1-ARCH #1 SMP PREEMPT Thu Jun 20 22:45:32 CEST 2013 x86_64 GNU/Linux
graysky wrote:
theOptimizedCoder wrote:Unfortunately, removing the memory sticks, blowing on them and re-inserting them didn't solve the issue. I'm assuming this is something to do with the BIOS as well.
What does the BIOS show as physical memory?
theOptimizedCoder wrote:This is on a Samsung NP365E5C-S05US and by default the BIOS option was set to only UEFI boot. I had to change it to boot 'UEFI as well as CSM/Legacy' - to make it boot Linux, so I'm guessing there's something else I'm overlooking.
That is likely unrelated. If probably just have a bootloader using BIOS mode.
It does show up as 4GB (2 * 2GB) in the BIOS!
However, there were these two other options set :
NX mode - Enabled
Framebuffer Memory - Auto
I'm thinking of playing around with the framebuffer memory after setting it to MANUAL. Any other suggestions?
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