User's Manual

5-8
SUPERSERVER 1018D-73MTF User's Manual
Memory Population Guidelines
Please follow the table below when populating the X10SL7-F.
DDR3 Unbuffered ECC (UDIMM) Memory
DIMM Slots per
Channel
DIMMs Populat-
ed per Channel
DIMM Type POR Speeds
Ranks per DIMM (any
combination)
21
Unbuffered
DDR3
1333, 1600 Single Rank, Dual Rank
22
Unbuffered
DDR3
1333, 1600 Single Rank, Dual Rank
Notes
Be sure to use memory modules of the same type, same speed, same frequency
on the same motherboard. Mixing of memory modules of different types and
speeds is not allowed.
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. See the follow-
ing table for details.
For Microsoft Windows users: Microsoft implemented a design change in the
Windows XP with Service Pack 2 (SP2) and Windows Vista. This change is spe-
ci c to the behavior of Physical Address Extension (PAE) mode which improves
driver compatibility. For more information, please read the following article at
Microsoft’s Knowledge Base website at: http://support.microsoft.com/kb/888137.
Possible System Memory Allocation & Availability
System Device Size
Physical Memory
Remaining (-Available)
(4 GB Total System
Memory)
Firmware Hub ash memory (System BIOS) 1 MB 3.99
Local APIC 4 KB 3.99
Area Reserved for the chipset 2 MB 3.99
I/O APIC (4 Kbytes) 4 KB 3.99
PCI Enumeration Area 1 256 MB 3.76
PCI Express (256 MB) 256 MB 3.51
PCI Enumeration Area 2 (if needed) -Aligned on 256-MB
boundary-
512 MB 3.01
VGA Memory 16 MB 2.85
TSEG 1 MB 2.84
Memory available to OS and other applications 2.84