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Tomcat i875P S5102
2.7 – Installing the Memory
Before attempting to install any memory, make sure that the memory you have is compatible
with the motherboard as well as the processor. For example, while PC1600 DDR modules are
compatible with all DDR based motherboards, they will not work if you are required to run the
motherboard and processor buses at 133MHz. For this, PC2100 DDR modules are required.
Critically important is whether you're using the recommended memory for the current board
you have. For this information, please check TYAN's web site at:
The following diagram shows the types of RAM modules you may encounter depending on
your board:
Here are a few key points to note before installing memory into your Tomcat i875P S5102:
•
128MB, 256MB, 512MB and 1GB unbuffered ECC and non-ECC
PC2100/PC2700/PC3200 DDR memory modules are supported
•
All installed memory will be automatically detected - no need to set any jumpers
•
The Tomcat i875P S5102 supports up to 4GB of memory
•
Registered Memory is NOT supported.
•
You can install either single- or double-sided modules on this board. Each DIMM
can work respectively for single-channel mode and dual-channel mode. Please note
that the same type and density memory modules are necessary while using dual-
channel DDR, otherwise it may cause system instability.
Please refer to the following table for detailed dual-channel DDR.
Dual-Channel Mode
Two DIMM Symmetrical
Population
Two DIMM Symmetrical
Population
Four DIMM Symmetrical
Population
Note
1.
: Installing128MB~1GB Memory modules
2. Symmetrical DIMMs must be identical
- Same DRAM Technology, eg 128M-bit, 256-bit, etc.
- Same DRAM bus width, eg x8 or x16
- Matched Sided DIMMs (Single Sided or Double Sided)
Channel A
DIMM1
DIMM2
(Blue)
(Black)
2-14
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Chapter 2: Board Installation
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DDR Unbuffered
DDR Unbuffered ECC
Channel B
DIMM3
DIMM4
(Blue)
(Black)
System
Density
256MB~2GB
256MB~2GB
512MB~4GB
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