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2.
Floppy disk drive connector (34-1 pin FLOPPY1)
This connector supports the provided floppy drive ribbon cable. After
connecting one end to the motherboard, connect the other end to the floppy
drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon
cables with pin 5 plug).
A7V333-X
®
A7V333-X Floppy Disk Drive Connector
3.
ATX power connectors (20-pin ATXPWR1)
These connectors connect to an ATX 12V power supply. The plugs from the
power supply are designed to fit these connectors in only one orientation. Find
the proper orientation and push down firmly until the connectors completely fit.
®
A7V333-X
A7V333-X ATX Power Connector
If you will need to replace the power supply in the future, make sure
that your new ATX 12V power supply can provide 8A on the +12V lead
and at least 1A on the +5-volt standby lead (+5VSB). The minimum
recommended wattage is 230W, or 300W for a fully configured system.
The system may become unstable and may experience difficulty
powering up if the power supply is inadequate.
1-14
FLOPPY1
PIN 1
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.
ATXPWR1
+3.3VDC
+3.3VDC
-12.0VDC
+3.3VDC
COM
COM
PS_ON#
+5.0VDC
COM
COM
COM
+5.0VDC
COM
COM
-5.0VDC
PWR_OK
+5.0VDC
+5VSB
+5.0VDC
+12.0VDC
Chapter 1: Motherboard Information
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