5-6
A+ Server 1012A-MRF User's Manual
DIMM Module Population Configuration
For memory to work properly, follow the tables below for memory installation:
Per Channel DIMM Populations Options
DIMM Type
DIMM A
DIMM B
Max. MHz,
1.5V DIMMs
Max. MHz,
1.35V DIMMs
Max. GB/
Channel
UDIMM
SR or DR
Empty
1600 MHz
1333 MHz
8 GB
SR
SR
1600 MHz
1333 MHz
4 GB
DR
DR
1333 MHz
1066 MHz
16 GB
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
Memory Population for Optimal Performance
# DIMMS
Channel 1
Channel 2
2 DIMMs
DIMM1A
DIMM2A
4 DIMMs
DIMM1A
DIMM2B
DIMM2A
DIMM2B
Содержание A+ 1012A-MRF
Страница 1: ...A Server 1012A MRF SUPER USER S MANUAL 1 0a ...
Страница 8: ...A Server 1012A MRF User s Manual viii Notes ...
Страница 14: ...1 6 A Server 1012A MRF User s Manual Notes ...
Страница 22: ...2 8 A 1012A MRF User s Manual Notes ...
Страница 46: ...4 20 A Server 1012A MRF User s Manuall Notes ...
Страница 80: ...6 2 A Server 1012A MRF User s Manual Notes ...
Страница 100: ...A 2 A Server 1012A MRF User s Manual Notes ...
Страница 107: ...C 1 Appendix C System Specifications Notes ...