Chapter 5: Advanced Motherboard Setup
5-9
Note 1
: Due to OS limitations, some operating systems may not show more than
4 GB of memory.
Note 2
: Due to memory allocation to system devices, the amount of memory that
remains available for operational use will be reduced when 4 GB of RAM is used.
The reduction in memory availability is disproportional.
Possible System Memory Allocation & Availability
System Device
Size
Physical Memory Available
(4 GB Total System Memory)
Firmware Hub flash memory (System BIOS)
1 MB
3.99 GB
Local APIC
4 KB
3.99 GB
Area Reserved for the chipset
2 MB
3.99 GB
I/O APIC (4 Kbytes)
4 KB
3.99 GB
PCI Enumeration Area 1
256 MB
3.76 GB
PCI Express (256 MB)
256 MB
3.51 GB
PCI Enumeration Area 2 (if needed) - aligned on
256 MB boundary
512 MB
3.01 GB
VGA Memory
16 MB
2.85 GB
TSEG
1 MB
2.84 GB
Memory available for the OS & other applications
2.84 GB
Summary of Contents for 2022TG-HLIBQRF
Page 1: ...A SERVER 2022TG HLIBQRF 2022TG HLTRF SUPER USER S MANUAL Revision 1 0c ...
Page 16: ...1 8 A SERVER 2022TG HLIBQRF HLTRF USER S MANUAL Notes ...
Page 30: ...A SERVER 2022TG HLIBQRF HLTRF USER S MANUAL 3 4 Notes ...
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Page 97: ...Chapter 6 Advanced Chassis Setup 6 21 Release Tab Figure 6 20 Changing the Power Supply ...
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