Chapter 2 Connecting Peripherals 23
2.19 CPU Fan Power Supply Connector (CN19)
The PCA-6751/6751V is equipped with the low power dissipation
Intel MMX CPU. With only a heatsink, it will work normally at
temperatures up to 60° C. At temperatures greater than 60° C, a fan is
needed. A CPU fan power supply connector is provided
(+5 V / +12 V input) in addition to the CPU power supply.
This provides power supply to the optional CPU cooling fan. This
connector is only available when +5 V, -12 V and +12 V power is
supplied to the board.
Warning! Before making the connection, make sure the
voltage is absolutely correct and matched with the
correct connector.
2.20 AT Power Connector (CN20)
If you prefer not to acquire power through PCA-6751/6751V’s
backplane via the gold H-connectors, CN20 also provides power input
connectors for +5 V, -12 V and +12 V. Pin 8 of the PS/2 power
supply can be used, too.
2.21 Keyboard & PS/2 Mouse Connector (CN21)
The PCA-6751/6751V board provides a keyboard connector. A 6-pin
mini-DIN connector (CN21) on the card mounting bracket supports
single-board computer applications. The card comes with an adapter
to convert from the 6-pin mini-DIN connector to a standard DIN
connector and to a PS/2 mouse connector.
2.22 ISA Goldfinger (CN22, 23)
The 16-bit ISA goldfingers are used for connecting the
PCA-6751/6751V to a ISA passive backplane.
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