Lenovo PC 300PL Technical Information Manual 6275, 6285 - Page 36

Power Supply, Power Input, PC 300GL Type 6275 and PC 300PL Type 6862

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Chapter 4. Power Supply Chapter 4. Power Supply The power supply requirements are supplied by 145-watt PC 300 Types 6275/6862 (desktop models) or 200-watt PC 300 Types 6285/6892 (tower models) power supply. The power supply provides 3.3-volt power for the Pentium microprocessor and core chip set and 5-volt power for ISA and PCI adapters. Also included is an auxiliary 5-volt (AUX 5) supply to provide power to power management circuitry and the system board Ethernet function, or a Wake on LAN adapter. The power supply converts the ac input voltage into four dc output voltages and provides power for the following: System board Adapters Internal drives Keyboard and auxiliary devices USB devices A logic signal on the power connector controls the power supply; the front panel switch is not directly connected to the power supply. The power supply connects to the riser card with a 2 x 10 connector. Power Input The following figure shows the input power specifications. The power supply has a manual switch to select the correct input voltage. Figure 11. Power Input Requirements Specification Input voltage, low range Input voltage, high range Input frequency Measurements 90 (min) to 137 (max) V ac 180 (min) to 265 (max) V ac 50 Hz ± 3 Hz or 60 Hz ± 3 Hz Power Output The power supply outputs shown in the following figures include the current supply capability of all the connectors, including system board, DASD, PCI, and auxiliary outputs. PC 300GL Type 6275 and PC 300PL Type 6862 Figure 12. Power Output (145 Watt) Output Voltage Regulation +5 volts +5% to −4% +12 volts +5% to −5% −12 volts +10% to −9% −5 volts +10% to −10% +3.3 volts +2% to −2% +5 volt (auxiliary) +5% to −10% Minimum Current 1.5 A 0.2 A 0.0 A 0.0 A 0.0 A 0.02 A Maximum Current 18.0 A 4.2 A 0.4 A 0.3 A 10.0 A .720 A The total combined 3.3 V/5 V power should not exceed 100 watts. 24 Copyright IBM Corp. June 1998

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Chapter 4.
Power Supply
Chapter 4. Power Supply
The power supply requirements are supplied by 145-watt PC 300 Types 6275/6862 (desktop models) or
200-watt PC 300 Types 6285/6892 (tower models) power supply.
The power supply provides 3.3-volt
power for the Pentium microprocessor and core chip set and 5-volt power for ISA and PCI adapters.
Also
included is an auxiliary 5-volt (AUX 5) supply to provide power to power management circuitry and the
system board Ethernet function, or a Wake on LAN adapter.
The power supply converts the ac input
voltage into four dc output voltages and provides power for the following:
System board
Adapters
Internal drives
Keyboard and auxiliary devices
USB devices
A logic signal on the power connector controls the power supply; the front panel switch is not directly
connected to the power supply.
The power supply connects to the riser card with a 2 x 10 connector.
Power Input
The following figure shows the input power specifications.
The power supply has a manual switch to
select the correct input voltage.
Power Output
The power supply outputs shown in the following figures include the current supply capability of all the
connectors, including system board, DASD, PCI, and auxiliary outputs.
PC 300GL Type 6275 and PC 300PL Type 6862
The total combined 3.3 V/5 V power should not exceed 100 watts.
Figure 11. Power Input Requirements
Specification
Measurements
Input voltage, low range
90 (min) to 137 (max) V ac
Input voltage, high range
180 (min) to 265 (max) V ac
Input frequency
50 Hz
±
3 Hz or 60 Hz
±
3 Hz
Figure 12. Power Output (145 Watt)
Output Voltage
Regulation
Minimum Current
Maximum Current
+5 volts
+5% to
-
4%
1.5 A
18.0 A
+12 volts
+5% to
-
5%
0.2 A
4.2 A
-
12 volts
+10% to
-
9%
0.0 A
0.4 A
-
5 volts
+10% to
-
10%
0.0 A
0.3 A
+3.3 volts
+2% to
-
2%
0.0 A
10.0 A
+5 volt (auxiliary)
+5% to
-
10%
0.02 A
.720 A
24
Copyright IBM Corp. June 1998