Intel G550T CM8062301002309 User Manual

Product codes
CM8062301002309
Page of 296
Processor Configuration Registers
24
Datasheet, Volume 2
There are sub-ranges within the PCI Memory address range defined as APIC 
Configuration Space, MSI Interrupt Space, and High BIOS Address Range. The 
exceptions listed above for internal graphics and the PCI Express ports MUST NOT 
overlap with these ranges. 
Figure 2-4. PCI Memory Address Range 
DMI Interface
(subtractive decode)
FEF0_0000h
4 GB – 2 MB
MSI Interrupts
FEE0_0000h
PCI Express Configuration 
Space
E000_0000h
High BIOS
FFE0_0000h
FFFF_FFFFh
4 GB
4 GB – 17 MB
DMI Interface
(subtractive decode)
FED0_0000h
4 GB – 18 MB
Local (CPU) APIC
FEC8_0000h
4 GB – 19 MB
I/O APIC
FEC0_0000h
4 GB – 20 MB
DMI Interface
(subtractive decode)
F000_0000h
4 GB – 256 MB
Possible address 
range/size (not 
ensured)
4 GB – 512 MB
DMI Interface
(subtractive decode)
TOLUD
BARs, Internal 
Graphics 
ranges, PCI 
Express Port, 
CHAPADR could 
be here.