5-10
A+ SERVER 4042G-6RF/TRF 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
Unbuffered
DIMM
SR or DR
Empty
1600 MHz
1333 MHz
8 GB
SR
SR
1600 MHz
8 GB
DR
DR
1333 MHz
16 GB
Registered
DIMM
SR or DR
Empty
1600 MHz
1333 MHz
16 GB
SR
SR
1600 MHz
16 GB
DR
DR
1600 MHz
32 GB
QR
Empty
1333 MHz
1066 MHz
32 GB
QR
QR
1066 MHz
800 MHz
64 GB
Load
Reduced
DIMM
QR
Empty
1333 MHz
32 GB
QR
QR
1333 MHz
64 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-M
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 A+ SERVER 2042G-6RF
Page 1: ... SUPER A SERVER 4042G 6RF TRF USER S MANUAL Revision 1 0f ...
Page 23: ...Chapter 2 Server Installation 2 9 Figure 2 5 Accessing the Inside of the System ...
Page 28: ...3 4 4042G 6RF TRF User s Manual Notes ...
Page 48: ...4 20 A SERVER 8027R TRF 7RFT User s Manual Notes ...
Page 90: ...6 10 A SERVER 4042G 6RF TRF User s Manual Figure 6 7 Removing a Power Supply Module ...
Page 108: ...A 2 A SERVER 4042G 6RF TRF User s Manual Notes ...