HP dc7900 manual System Memory Map for maximum of 8 gigabytes

Processor/Memory Subsystem

1 FFFF FFFEh	High BIOS Area
FFE0 0000h	DMI/APIC
	Area
F000 0000h
	PCI
	Memory
	Area
Main	IGC (1-64 MB)
	TSEG
Memory
Area	Main
0100 0000h	Memory
00FF FFFFh
	Main
	Memory
0010 0000h
000F FFFFh	BIOS
	Extended BIOS
DOS	Expansion Area
Compatibilty	Legacy Video
Area
	Base Memory
0000 0000h

8 GB

Top of DRAM

16 MB

1MB

640 KB

Figure 3-2. System Memory Map (for maximum of 8 gigabytes)

✎All locations in memory are cacheable. Base memory is always mapped to DRAM. The next 128 KB fixed memory area can, through the north bridge, be mapped to DRAM or to PCI space. Graphics RAM area is mapped to PCI locations.

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