RHLE5- Different size of RAM memory: BIOS vs OS

[obed]

Hi all...
I installed RHEL5 in a sun server Sunfire x2100 it has 1 GB in RAM in
BIOS I can see 1024 KB but in the OS look:

[root at srv-lnx ~]# more /proc/meminfo
MemTotal:       896024 kB
MemFree:        539736 kB
Buffers:         18088 kB
Cached:         221924 kB
SwapCached:          0 kB
Active:         139548 kB
Inactive:       175300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       896024 kB
LowFree:        539736 kB
SwapTotal:     2031608 kB
SwapFree:      2031608 kB
Dirty:               8 kB
Writeback:           0 kB
AnonPages:       74792 kB
Mapped:          16960 kB
Slab:            19236 kB
PageTables:       8632 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   2479620 kB
Committed_AS:   290896 kB
VmallocTotal: 34359738367 kB
VmallocUsed:      1344 kB
VmallocChunk: 34359736919 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

[root at srv-lnx ~]# free -k
             total       used       free     shared    buffers     cached
Mem:        896024     356164     539860          0      18096     221956
-/+ buffers/cache:     116112     779912
Swap:      2031608          0    2031608


top - 12:11:00 up  3:17,  2 users,  load average: 0.00, 0.00, 0.00
Tasks: 101 total,   2 running,  99 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.2%us,  0.0%sy,  0.0%ni, 99.8%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:    896024k total,   356472k used,   539552k free,    18120k buffers


It's not a Giga... it's that ok?...

Do i have to do something special to the whole Giga, It's something wrong?

Any help will be appreciate...

Thanks in advance...

obed.



-- 

obed.org.mx