Filter
Top Products
Appendix B Hardware Configuration
© National Instruments Corporation B-15 NI 8352/8353 User Manual
Dual-Channel Memory Configuration
For optimum memory performance, you can use dual-channel memory
configurations. In these configurations, identical memory is installed
in channels A and B. Figures B-19, B-20, and B-21 show allowed
configurations for dual-channel memory mode.
Note Due to chipset limitations, only the following operating systems support 8 GB
memory:
• 32-bit: Windows 2000 Advanced Server, Windows Server 2003 Enterprise Edition
• 64-bit: Windows Server 2003 Standard x64 Edition, Windows XP Professional x64
Edition, Windows Server 2003 Enterprise x64 Edition
You can install a maximum of 2 GB DIMMs on each slot. However, only
DDR2 667 MHz 2 GB density modules are available for this configuration.
Some older versions of DDR2-667 may not match the Intel on-die
temperature requirement and are automatically downgraded to run at
533 MHz. If this occurs, contact your memory vendor to check the
ODT value.
Due to memory allocation to system devices, memory available for
operational use is reduced when you use 4 GB of RAM. Refer to
Table B-6 for details.
Table B-6. Possible System Memory Allocation and Availability
System Device Size
Physical Memory Available
(4 GB Total System Memory)
Firmware hub flash 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 KB) 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