Review your favorite Linux distribution.
Go Back > Forums > Linux Forums > Linux - Hardware
User Name
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


  Search this Thread
Old 09-06-2003, 09:14 PM   #1
Registered: Nov 2002
Distribution: RedHat 9
Posts: 78

Rep: Reputation: 15
Question Does RH 9 detect Ram above 960MB?

Does RH 9 detect Ram above 960MB? I just increased my ram from 512mb to 1GB. Here is my FREE output:

total used free shared buffers cached
Mem: 1030908 397132 633776 0 45180 216292
-/+ buffers/cache: 135660 895248
Swap: 2096472 15584 2080888

Which shows up as 1007 MBs.

But in my kernel log file(dmesg) it reads:

Memory: 1027428k/1048512k available (1333k kernel code, 17500k reserved, 1001k data, 132k init, 131008k highmem)

Which shows up as 1GB.

How and where can I check if memory above 960mb is supported(To me it looks like it sees more than 960mg but i get 2 different results)? Or is 4GB support in RH 9 by default, thus eliminating the need to check? Your help, tips, and advice are always appreciated.


Greg M.

Last edited by gsmonk; 09-06-2003 at 09:18 PM.
Old 09-06-2003, 09:38 PM   #2
Senior Member
Registered: May 2003
Location: Sydney, Nova Scotia, Canada
Distribution: slackware
Posts: 4,185

Rep: Reputation: 60
k i am not sure i follow, you say you had 512, and you added additional ram to give you a gig of ram, and when you show the output of free, and a part of your log it tells you that you have a gig...and your asking if over 960 (wherever that number comes from) is supported???
can you try to elaborate on what your trying to get across, cause it just doesn't make sense to me?
Old 09-06-2003, 11:12 PM   #3
Registered: Nov 2002
Distribution: RedHat 9
Posts: 78

Original Poster
Rep: Reputation: 15
I am sorry for the misunderstanding I am wondering why when I use "FREE" it doesn't show the full 1GB (1024 MGEGS) instead it show only 1007 MGs. Or am I not reading the output from "FREE" right. Or is the system not reading or recoginizing the ram properly? Bottom line is, do I have to make an adjustment in the kernel or is it fine like it is? If I do have to make the adjustment, how do I do it?


Last edited by gsmonk; 09-06-2003 at 11:54 PM.
Old 09-07-2003, 12:24 AM   #4
Registered: Nov 2002
Distribution: RedHat 9
Posts: 78

Original Poster
Rep: Reputation: 15
I also checked my /boot/config-2.4.xx-xx.x file and say that the CONFIG_NOHIGH-MEM was commented out but, I also saw this:


What does this mean? Does this mean the kernel supports upto 4GB of RAM?




Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Slackware and Gentoo only detect 1GB out of 3.5GB of RAM DiscoGranny Linux - Newbie 6 06-25-2005 02:34 PM
Win98SE Pentium166MMX/64MB RAM vs Linux AthlonXP+ 3000/512MB RAM : Lucent LT WinModem t3gah Linux - Software 2 04-22-2005 01:01 PM
SuSE 9.2 install fails to detect DVD-RAM skunkcabbage SUSE / openSUSE 1 01-20-2005 02:16 PM
Linux doesn't detect all my RAM? tomas412 Linux - Hardware 5 09-23-2004 04:30 PM
Unable to detect ram during RH 8.0 install VitaminD76 Linux - General 6 02-17-2003 04:26 PM > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 03:22 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration