Chapter 5: Advanced Serverboard Setup

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-M

512 MB

3.01 GB

boundary-

 

 

 

 

 

 

VGA Memory

16 MB

2.85 GB

 

 

 

TSEG

1 MB

2.84 GB

 

 

 

 

Memory available for the OS & other applications

 

 

2.84 GB

 

 

 

 

5-9

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SUPER MICRO Computer 1022G-URF user manual Possible System Memory Allocation & Availability