Document

Integration Guide for New Dual-Core Intel

Xeon

Processor-Based Servers (or Workstations) Rev 1.0

3.4 Server System Infrastructure (SSI) Compliant

Chassis

Server System Infrastructure (SSI) compliant chassis provides component attachment, adequate airflow,

electronic emission protection, as well as data storage and management. The quality of chassis will

greatly impact server system performance. Compared to a desktop PC chassis, the requirement for

server chassis on thermal, power supplies and data management is much higher.

USEFUL INFORMATION

z Rack mount chassis include 1U rack chassis and 2U+ chassis. The height of 1U chassis is 1.75’’ and

2U chassis is 3.5’’.

z SSI specifications can be obtained from SSI website at http://ww.ssiforum.org

3.4.1 Chassis Form Factor

Pedestal and rack mount are two types of form factors. Pedestal chassis should be compliant to EEB 3.61

or CEB 1.1, and rack mount chassis should be compliant to TEB 2.11.

EEB is mainly used for entry-level servers with larger form factors, and CEB is targeted at value servers

with smaller form factors and lower cost.

The EEB chassis can install one motherboard based on the ATX form factor ‘stretched’ to 12” X 13”, a size

sometimes known as “full ATX”. This represents the maximum size of board in one EEB chassis, though

smaller sizes are possible. The maximum motherboard size in CEB Chassis is 12’’ X 10.5’’; there is a 2.5’’

difference in length. The TEB baseboard is based on the EEB baseboard size of 12” X 13”.

There are specific requirements on rack chassis width and height to make sure they are compliant to rack

system. The 1U and 2U maximum height dimensions allow for 1.3mm clearance between adjacent

systems when they are installed in a typical rack configuration. The 445.0mm maximum width includes

chassis width, rails, and tolerance; chassis with typical 3/8” roller-bearing slide rails are limited to

428.0mm. System typical depth is 610mm to 660mm.