[colug-432] 64bit OS Not Seeing All RAM

[tom]

Installed LinuxMint 17 64bit ver2 on Dell Optiplex 210L.  64bit P4, 
Hyperthreading enabled = running in 64bit mode. New Crucial 4 GB RAM (2 
2GB sticks), Onboard video - Video Memory Size Is set at 8 MB. I only 
have 3 GB RAM available. Setup sees 4 GB of RAM. Since I am running 64 
bit OS all of the RAM should be available. Is there something about the 
64 bit P4 that is causing this problem.

$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping : 9
microcode : 0x3
cpu MHz : 2992.563
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm 
constant_tsc pebs bts nopl pni dtes64 monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 5985.12
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping : 9
microcode : 0x3
cpu MHz : 2992.563
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm 
constant_tsc pebs bts nopl pni dtes64 monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 5985.12
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:


$ cat /proc/meminfo
MemTotal: 3071852 kB
MemFree: 1781128 kB
Buffers: 50152 kB
Cached: 530220 kB
SwapCached: 0 kB
Active: 734852 kB
Inactive: 461068 kB
Active(anon): 616424 kB
Inactive(anon): 87672 kB
Active(file): 118428 kB
Inactive(file): 373396 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 4876284 kB
SwapFree: 4876284 kB
Dirty: 264 kB
Writeback: 0 kB
AnonPages: 615540 kB
Mapped: 113656 kB
Shmem: 88556 kB
Slab: 41624 kB
SReclaimable: 24600 kB
SUnreclaim: 17024 kB
KernelStack: 2816 kB
PageTables: 16592 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 6412208 kB
Committed_AS: 2160812 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 544412 kB
VmallocChunk: 34359186436 kB
HardwareCorrupted: 0 kB
AnonHugePages: 71680 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 41504 kB
DirectMap2M: 3094528 kB


$ egrep "model name|address" /proc/cpuinfo
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
address sizes : 36 bits physical, 48 bits virtual
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
address sizes : 36 bits physical, 48 bits virtual


$ uname -a
Linux user-OptiPlex-210L 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 
23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux


$ cat /etc/*release
DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=17
DISTRIB_CODENAME=qiana
DISTRIB_DESCRIPTION="Linux Mint 17 Qiana"
NAME="Ubuntu"
VERSION="14.04, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
cat: /etc/upstream-release: Is a directory

Tom

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