Memory problems

[jmesq32]

HI, I done a memory upgrade of my Linux Linux 2.6.35.11-83.fc14.i686.PAE #1 SMP Mon Feb 7 06:57:55 UTC 2011 i686 i686 i386 GNU/Linux . At this moment i have 3gib of memory but the system only see 2 gib.
Here is the outupt from the mem comand:

total used free shared buffers cached
Mem: 2060004 944836 1115168 0 90068 507484
-/+ buffers/cache: 347284 1712720

This my kernel version:

[root@Linux Jorge]# yum list installed |grep PAE
kernel-PAE.i686 2.6.35.11-83.fc14 @updates

Can you please help me to start see the avalible memory installed .

[DBelton]

have you gone into your BIOS setup and make sure that the memory is being recognized by your system? Usually Fedora has no problem seeing memory added if the BIOS recognizes it.

It's possible that the extra memory you added is the wrong type and your BIOS isn't seeing it, or your system may have a 2GB maximum. If it's a 2GB maximum, a BIOS update may possibly correct it, it all depend on what motherboard/memory you have.

[AndrewSerk]

In addition your

[root@Linux Jorge]# yum list installed |grep PAE
kernel-PAE.i686 2.6.35.11-83.fc14 @update

s
only indicates that that kernel is installed. Make sure you are using a PAE kernel with:

uname -r

[DBelton]

good point AndrewSerk, however since he only has 3GB, it wouldn't matter what kernel he's running, it should recognize and use it all. the standard i686 kernel, the PAE kernel and the 64 bit kernel will see 3GB of RAM.

[AndrewSerk]

Originally Posted by DBelton

good point AndrewSerk, however since he only has 3GB, it wouldn't matter what kernel he's running, it should recognize and use it all. the standard i686 kernel, the PAE kernel and the 64 bit kernel will see 3GB of RAM.

Doh, You are correct, good catch DBelton

[jpollard]

What motherboard are you using?

Some of them require SIMMs to be installed in pairs, 3 GB is an odd number to get in pairs.

[jmesq32]

HI , i should told you before my computer is T43 IBM laptop , i have checked the bios settings and at the bios the amount of memory is correct it shows 3072gib . The service guide of this Machine tell me that the maximum memory supported is 2gib but i have another t43 that is running windows7 32 bits with the same amount o memory.
the windows see 3gig install to the system as available but it shares 1 gib with the on board video card.
Bios is updated 1,29 version .
this the output of commands at fedora 14.

free mem - total used free shared buffers cached
Mem: 2060004 1945480 114524 0 81552 1507692
-/+ buffers/cache: 356236 1703768
Swap: 4128764 0 4128764
lshw -memory
description: System Memory
physical id: 2c
slot: System board or motherboard
size: 3GiB
*-bank:0
description: SODIMM DDR Synchronous
physical id: 0
slot: DIMM 1
size: 2GiB
width: 64 bits
*-bank:1
description: SODIMM DDR Synchronous
physical id: 1
slot: DIMM 2
size: 1GiB
width: 64 bits
cat /proc/meminfo - MemTotal: 2060004 kB
MemFree: 102588 kB
Buffers: 81912 kB
Cached: 1508428 kB
SwapCached: 0 kB
Active: 662688 kB

top -MemTotal: 2060004 kB
MemFree: 102588 kB
Buffers: 81912 kB
Cached: 1508428 kB
SwapCached: 0 kB
Active: 662688 kB


Any suggestions .

Thanks

[diamond_ramsey]

Originally Posted by jmesq32

...but it shares 1 gib with the on board video card...

QED.

That was going to be my question.

Update ==> Food for thought -

* How about you "update" the amount of memory allocated to video and see how this "impacts" your available memory as seen in Fedora?

I believe this probably will. Let's see.

Hope this helps.

[DBelton]

I agree. I believe the difference will be what it uses for video ram. On that machine, there really isn't any reason to have 1GB for video memory. I would drop that back to 512MB at the most.

[droidhacker]

Hate to say it, but this really sounds like a chipset limitation. The book says it can't do more than 2 GiB, then I really suspect that that is your limit. Allocating more to the video card may simply be a way to get around this limit slightly.

[stevea]

Originally Posted by jmesq32

HI , i should told you before my computer is T43 IBM laptop , i have checked the bios settings and at the bios the amount of memory is correct it shows 3072gib . The service guide of this Machine tell me that the maximum memory supported is 2gib but i have another t43 that is running windows7 32 bits with the same amount o memory.
the windows see 3gig install to the system as available but it shares 1 gib with the on board video card.
Bios is updated 1,29 version .
this the output of commands at fedora 14.

free mem - total used free shared buffers cached
Mem: 2060004 1945480 114524 0 81552 1507692
-/+ buffers/cache: 356236 1703768
Swap: 4128764 0 4128764
lshw -memory
description: System Memory
physical id: 2c
slot: System board or motherboard
size: 3GiB
*-bank:0
description: SODIMM DDR Synchronous
physical id: 0
slot: DIMM 1
size: 2GiB
width: 64 bits
*-bank:1
description: SODIMM DDR Synchronous
physical id: 1
slot: DIMM 2
size: 1GiB
width: 64 bits
cat /proc/meminfo - MemTotal: 2060004 kB
MemFree: 102588 kB
Buffers: 81912 kB
Cached: 1508428 kB
SwapCached: 0 kB
Active: 662688 kB

top -MemTotal: 2060004 kB
MemFree: 102588 kB
Buffers: 81912 kB
Cached: 1508428 kB
SwapCached: 0 kB
Active: 662688 kB


Any suggestions .

Thanks

Quit playing games and post the entire output of
cat /proc/meminfo
posting no command and only part of the output is a waste of everyone's time.
Cutting of the important details off and making ppl guess is BS.

BTW 'quote' or 'code' any output that requires indentation for readability.

[jpollard]

I would think 'code' would be better as it preserves any indentation.