Nettop Platform for 2008 System Design White Paper

Improving System Thermal Performance
26 White Paper
5.3 Case Studies
Fan location sensitivity study was conducted using 13L micro-ATX chassis with 3
different configurations, by various fan locations in the chassis.
Schematic in
Figure 8 shows a typical internal placement of micro-ATX chassis. Fan
could be located at locations A and B, which are the PSU fan and system fan (at back
panel) respectively. Some chassis have system fan at location C instead.
Alternatively, PSU fan could be placed at bottom region of chassis at location E, and
system fan could be located at D & F.
Three scenarios have been studied and giving as examples in this document:
• Case Study #1: Location A, B
• Case Study #2: Location A, C
• Case Study #3: Location D, E, F
Figure 8 Schematic of Typical Micro ATX System Placement
A
B
C
D
E
Effective Fans
Ineffective Fans
PSU
PSU
HDD
ODD
Bay
Chassis To
p
Side
Chassis
Back
Side
E
D
C
B
A
F