User`s manual

5-10
SuperWorkstation 5038A-IL User's Manual
• For Microsoft Windows users: Microsoft implemented a design change in
Windows XP with Service Pack 2 (SP2) and Windows Vista. This change
is specifi c to the behavior of Physical Address Extension (PAE) mode,
which improves driver compatibility. For more information, please read the
article at Microsoft’s Knowledge Base website: http://support.microsoft.com/
kb/888137.
Possible System Memory Allocation & Availability
System Device Size Physical Memory
Remaining (Available)
(w/ 4 GB Total System Memory)
Firmware Hub fl ash memory (System BIOS) 1 MB 3.99
Local APIC 4 KB 3.99
Area Reserved for the chipset 2 MB 3.99
I/O APIC (4 Kbytes) 4 KB 3.99
PCI Enumeration Area 1 256 MB 3.76
PCI Express (256 MB) 256 MB 3.51
PCI Enumeration Area 2 (if needed) -Aligned on 256-MB
boundary-
512 MB 3.01
VGA Memory 16 MB 2.85
TSEG 1 MB 2.84
Memory available to OS and other applications 2.84