CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual
or Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
System Board Components
Power Supply DC Connector Pin Assignments
The 250-W power supply can operate from an AC power source of 115 VAC at 60 Hz or 230 VAC at 50 Hz. The power supply provides the DC operating voltages and currents listed in the following table.
Output Voltage
Minimum Current (A)
Maximum Current (A)1
+12 VDC
0.0
14.03
+5 VDC
1.0
22.03
+3.3 VDC
0.1/0.02
18.03
–12 VDC
0.0
1.0
+5 VFP
0.0
2.0
When the current load is outside of the ranges listed, but within each specified output current range, the +5-V, +12-V, and +3.3-V outputs are allowed to regulate at +/–10% of nominal DC voltages.
1Maximum continuous total DC output cannot exceed 200 W. Maximum continuous combined load on +5-VDC and +3.3-VDC outputs cannot exceed 135 W.
2In system applications where +3.3 VDC is not used, these values may be 0 A without affecting the regulation on the other outputs.
3The required full load combinations are adjusted so that the total output power is less than or equal to 250 W.
