Tomcat i7230A S5160 

                                                       Chapter 2: Board Installation 

2.5   Installing Memory 

Before installing memory, ensure that the memory you have is compatible with the 

motherboard and processor. DDR II 533/667 modules are required. Check the TYAN Web site 

at: 

www.tyan.com

 for details of the type of memory recommended for your motherboard. 

The following diagram shows common types of memory modules. 

DDR Unbuffered

DDR Unbuffered ECC

Key points to note before installing memory: 

128MB, 256MB, 512MB ,1GB and 2GB Non Reg/ECC or Non Reg/Non ECC DDR 

II 533/667

memory modules are supported 

All installed memory will be automatically detected and no jumpers or settings need 

to be set. 

The Tomcat i7230A S5160 supports up to 8GB of memory 

Registered Memory is NOT supported. 

You can install either single or double sided modules on this motherboard. Each 

DIMM can work in single channel mode or dual channel mode. Please note that 

memory modules of the same type and density are required while using dual 

channel DDR. Mismatched memory may cause system instability. 

 Refer to the following table for details of dual channel DDR. 

Channel A 

Channel B 

System 

Dual Channel Mode 

DIMM1 

DIMM2 DIMM3 DIMM4 

Density 

Two DIMM Symmetrical 

256MB~4GB 

Population 

Two DIMM Symmetrical 

Population 

 256MB~4GB 

Four DIMM Symmetrical 

 512MB~8GB 

Population 

Note 

1. 

= Installing 128MB ~ 2GB 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) 

2.5.1 Memory Installation Procedure 

Follow these instructions to install memory modules into the Tomcat i7230A S5160.  

1. 

Press the locking levers in the direction shown in the following illustration.  

14

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