3-12
X8DTU-6F+/X8DTU-6TF+/X8DTU-6(T)F+-LR User's Manual
Possible System Memory Allocation & Availability
System Device
Size
Physical
Memory
Remaining (-Available)
(4 GB Total System Memory)
Firmware Hub fl ash 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
1.35V RDIMM Population for the Motherboard w/5600 Processors
3
2
Reg. DDR3 ECC
800,1066 (Note 2)
Mixing SR, DR
3
2
Reg. DDR3 ECC
800 (Note 3)
Mixing SR, DR, QR
3
3
Not Available
Not Available
Not Available
Note 1:
1333/1066 MHz QR RDIMMs will run at 800 MHz (-BIOS automatic downgrading).
Note 2:
1333 MHz SR/DR RDIMMs will run at 800 MHz (-BIOS automatic downgrading).
Note 3:
1333/1066 MHz SR/DR/QR RDIMMs will run at 800 MHz (-BIOS automatic downgrading).
Note 4:
MIxing of 1.35V and 1.5V DIMMs is not recommended.
1.35V UDIMM Population for the Motherboard w/5600 Processors Installed
DIMM
Slots per
Channel
DIMMs
Populated
per Channel
UDIMM (Unb. DIMM/
Unbuffered DIMM)
Speeds (in MHz)
Ranks per DIMM
(any combination;
SR=Single Rank,
DR=Dual Rank,
QR=Quad Rank)
3
1
Unb. DDR3 ECC
800,1066,1333
SR or DR
3
2
Unb. DDR3 ECC
800,1066
Mixing SR, DR
3
3
Not Available
Not Available
Not Available
Note 1:
1333 MHz for two DIMMs per channel is supported when Unbuf./ECC DIMMs are used.
Note 2:
MIxing of 1.35V and 1.5V DIMMs is not recommended.
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 dispropor-
tional. (See the following Table.)
Summary of Contents for Supero X8DTU-6F+
Page 1: ...USER S MANUAL Revision 1 0a X8DTU 6F X8DTU 6TF X8DTU 6F LR X8DTU 6TF LR ...
Page 104: ...5 30 X8DTU 6F X8DTU 6TF X8DTU 6 T F LR Motherboard User s Manual Notes ...
Page 106: ...A 2 X8DTU 6F X8DTU 6TF X8DTU 6 T F LR User s Manual Notes ...
Page 110: ...B 4 X8DTU 6F X8DTU 6TF X8DTU 6 T F LR User s Manual Notes ...
