SUPER MICRO Computer X9SVL-IIF, X9SCM-IIF user manual DDR3 Unbuffered ECC Udimm Memory

Chapter 2: Installation

The table explains the different types of memory supported that can be accomodated in each memory slot.

DDR3 Unbuffered ECC (UDIMM) Memory

DIMM Slots per	DIMMs Populat-	DIMM Type	POR Speeds	Ranks per DIMM (any
Channel	ed per Channel			combination)
2	1	Unbuffered	1066, 1333	Single Rank, Dual Rank
		DDR3
2	2	Unbuffered	1066, 1333, 1600	Single Rank, Dual Rank
		DDR3

Note: 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.

For Microsoft Windows users: Microsoft implemented a design change in the Win- dows XP with Service Pack 2 (SP2) and Windows Vista. This change is specific 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 flash memory (System BIOS) Local APIC

Area Reserved for the chipset

I/O APIC (4 Kbytes)

PCI Enumeration Area 1

PCI Express (256 MB)

PCI Enumeration Area 2 (if needed) -Aligned on 256-MB boundary-

VGA Memory

TSEG

Memory available to OS and other applications

1 MB	3.99
4 KB
	3.99
2 MB
	3.99
4 KB
	3.99
256 MB
	3.76
256 MB
	3.51
512 MB
	3.01
16 MB
	2.85
1 MB
	2.84
	2.84

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