Hardware Reference
In-Depth Information
system. Extra support for the thermal module is provided under the board via an SRM,
whichprovidesstructuralsupportforheatsinksthataremuchheavierthanallowedinATX
designs (see
Figure 4.11
)
.
Figure 4.11
BTX thermal module containing a processor heatsink and fan.
BTX uses the same power connectors as in the latest power supply form factor specifica-
tions, including a 24-pin main connector for the board and a 4-pin ATX12V connector for
the CPU voltage regulator module. The particular power supply form factor used depends
mostly on the chassis selected.
A typical tower system has components arranged as shown in
Figure 4.12
.
Figure 4.12
BTX tower chassis layout.
