 |
SE440BX-2 Motherboard System Memory
Contents
Important Notes
System Memory Combinations
The motherboard has three, dual in-line memory module (DIMM) sockets. Minimum memory size is 16 MB; maximum memory size is 768 MB. The largest DIMM supported at this time is 256 MB using unbuffered 128 Mbit technology parts. The BIOS automatically detects memory type, size, and speed.
The motherboard supports the following memory features:
- 168-pin DIMMs with gold-plated contacts
- 66 or 100 MHz SDRAM
- Non-ECC (64-bit) and ECC (72-bit) memory
- 3.3 V memory only
- Unbuffered Single- or double-sided DIMMs in the following sizes:
DIMM Size Non-ECC Configuration ECC Configuration
16 MB 2M x 64 2M x 72
32 MB 4M x 64 4M x 72
64 MB 8M x 64 8M x 72
128 MB 16M x 64 16M x 72
256 MB 32M x 64 32M x 72
Synchronous DRAM (SDRAM) can be installed in one, two, or three sockets.
EDO DIMMs are not supported. Memory size and speed can vary between sockets.
NOTE. Pentium II processors with 100 MHz front-side bus should be paired only with
100 MHz SDRAM. Processors with 66 MHz front-side bus can be paired with either 66 MHz or 100 MHz SDRAM.
All memory components and DIMMs used with the SE440BX-2 motherboard should comply with the PC SDRAM specifications. These include: the PC SDRAM Specification (memory component specific), the PC Unbuffered DIMM Specification, and the PC Serial Presence Detect Specification.
NOTE. It is recommended that SPD memory DIMMs be used with the SE440BX-2 motherboard. However, the BIOS will allow the use of non-SPD DIMM memory.
DIMM Vendors - Web Sites
The list below contains vendors that have tested their memory for SE440BX-2 motherboards, and that have their products listed on their own website. Please visit their sites to obtain information on their products.
DIMM Vendors - SDRAM Non-ECC DIMMs
The following tables list DIMMs that have been tested. DIMMs that are not listed should also function properly as long as their specifications are compatible with the devices listed below. In general, DIMM devices that are faster than those specified for a given platform will work, although no extra performance will be realized.
Vendor Test Vendor Part Number Comments
2M x 64 (16 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
Micron FULL MT8LSDT264A
2M x 64 (16 MB), Unbuffered SDRAM, Non-ECC - 66 MHz
None at this time.
4M x 64 (32 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
None at this time.
4M x 64 (32 MB), Unbuffered SDRAM, Non-ECC - 66 MHz
None at this time.
8M x 64 (64 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
Micron FULL MT8LSDT864AG-10CB4
Samsung FULL KMM366S924T-GL
Samsung FULL KMM366S823CTS-GL
8M x 64 (64 MB), Unbuffered SDRAM, Non-ECC - 66 MHz
None at this time.
16M x 64 (128 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
Samsung FULL KMM366S1723T-GL
16M x 64 (128 MB), Unbuffered SDRAM, Non-ECC - 66 MHz
None at this time.
32M x 64 (256 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
Samsung FULL KMM366S3323T-GL
32M x 64 (256 MB), Unbuffered SDRAM, Non-ECC - 66 MHz
None at this time.
DIMM Vendors - SDRAM ECC DIMMs
Error checking and correcting (ECC) memory detects multiple-bit errors and corrects single-bit errors. When ECC memory is installed, the BIOS supports both ECC and non-ECC mode. ECC mode is enabled in the Setup program. The BIOS automatically detects if ECC memory is installed and provides the Setup option for selecting ECC mode. If any non-ECC memory is installed, the Setup option for ECC configuration does not appear and ECC operation is not available.
The following table describes the effect of using Setup to put each memory type in each supported mode. Whenever ECC mode is selected in Setup, some performance loss occurs.
Memory Error Detection Mode Established in Setup Program
ECC Disabled ECC Enabled
Non-ECC DIMM No error detection N/A
ECC DIMM No error detection Single-bit error correction,
multiple-bit error detection
The following tables list DIMMs that have been tested. DIMMs that are not listed should also function properly as long as their specifications are compatible with the devices listed below. In general, DIMM devices that are faster than those specified for a given platform will work, although no extra performance will be realized.
Vendor Test Vendor Part Number Comments
2M x 72 (16 MB), Unbuffered SDRAM, ECC - 100 MHz
None at this time.
2M x 72 (16 MB), Unbuffered SDRAM, ECC - 66 MHz
None at this time.
4M x 72 (32 MB), Unbuffered SDRAM, ECC - 100 MHz
Micron FULL MT16LSDT4464A
4M x 72 (32 MB), Unbuffered SDRAM, ECC - 66 MHz
None at this time.
8M x 72 (64 MB), Unbuffered SDRAM, ECC - 100 MHz
Micron FULL MT9LSDT872AG-10CB4
Micron FULL MTLSDT872AG-10BD2
Samsung FULL KMM374S823BT-GL
8M x 72 (64 MB), Unbuffered SDRAM, ECC - 66 MHz
None at this time.
16M x 72 (128 MB), Unbuffered SDRAM, ECC - 100 MHz
Micron FULL MT18LSDT1672AG-10CB4
16M x 72 (128 MB), Unbuffered SDRAM, ECC - 66 MHz
None at this time.
32M x 72 (256 MB), Unbuffered SDRAM, ECC - 100 MHz
Samsung FULL KMM374S3323T-GL
32M x 72 (256 MB), Unbuffered SDRAM, ECC - 66 MHz
None at this time.
Updated: Friday, July 02, 1999
|
