Scope; Hp Xw9300 Workstation With Rhel3 32-Bit Os; Resolution; X86 Or Amd64/Em64T On The Hp Xw4200 Workstation Only Reports Approximately 3Gb When 4Gb Of Memory Is Present - HP xw3400 User Manual

If you have 4GB or more of memory installed and are seeing less memory than expected (due to the
kernel's need to allocate space for memory mapped I/O), you can enable Memory remapping and
also use the hugemem kernel to access the remapped memory. Your system will then report the full
amount of memory installed.

SCOPE

HP xw9300 Workstation with RHEL3 32-bit OS

RESOLUTION

To install the hugemem kernel:
Mount CD2 from the RHEL3U5 i386 install media under /mnt/cdrom.
1.
cd /mnt/cdrom/RedHat/RPMS
2.
rpm -ivh kernel-hugemem-2.4.21-32.EL.i686.rpm
3.
umount /mnt/cdrom
4.
Reboot.
5.
Select the hugemen kernel when the system restarts.
6.
To enable Memory Remapping in the BIOS:
Reboot the workstation.
1.
When you see the blue highlighted "F1: Boot" press F10 for Computer Setup Utility.
2.
Select your language.
3.
Use the Arrow keys to move across to Advanced.
4.
Use the Arrow keys to move down to Chipset/Memory.
5.
Use the Arrow keys to move down to Memory Remapping.
6.
Use the -> Arrow key to set the entry to Enable.
7.
Press F10 to Accept, Press F10 again followed by the Enter key and press F10 one last time
8.
to save the changes.
Boot as usual.
9.
With the RHEL3 32-bit OS, if you are running a kernel which does not have PAE enabled (such as the
athlon kernel) you will always want to Disable Memory Remapping otherwise your system will only
report up to 2GB of memory.
x86 or AMD64/EM64T on the HP xw4200 Workstation Only Reports
Approximately 3GB when 4GB Of Memory Is Present

DESCRIPTION

The HP xw4200 Workstation which contains the Intel 925x chipset does not support greater than
4GB of DRAM and thus does not support memory remapping above 4GB. Therefore, if you have
4GB of physical memory installed on an xw4200, you will see approximately 3GB due to the fact
that the kernel reserves the approximate 3GB to 4GB region for memory mapped for IO.
SCOPE
HP xw4200 Workstation
RESOLUTION
None; see xw4200 Specification at http://www.hp.com/workstations/pws/xw4200/specs.html.
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