Lenovo PC 300GL Technical Information Manual 6272, 6282 - Page 35

Component Outputs

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Chapter 4. Power Supply Component Outputs The power supply provides separate voltage sources for the system board and internal storage devices. The following figures show the approximate power that is provided for specific system components. Many components draw less current than the maximum shown. Figure 28. System Board Supply Voltage +3.52 V dc +5.0 V dc +12.0 V dc −12.0 V dc Maximum Current 3000 mA 4000 mA 25.0 mA 25.0 mA Regulation Limits +2% to −2.0% +5.0% to −4.0% +5.0% to −5.0% +10.0% to −9.0% Figure 29. Keyboard Port Supply Voltage +5.0 V dc Maximum Current 275 mA Regulation Limits +5.0% to −4.0% Figure 30. Auxiliary Device Port Supply Voltage +5.0 V dc Maximum Current 300 mA Regulation Limits +5.0% to −4.0% Figure 31. ISA-Bus Adapters (Per Slot) Supply Voltage Maximum Current +5.0 V dc 4500 mA −5.0 V dc 200 mA +12.0 V dc 1500 mA −12.0 V dc 300 mA Regulation Limits +5.0% to −4.0% +5.0% to −5.0% +5.0% to −5.0% +10.0% to −9.0% Figure 32. PCI-Bus Adapters (Per Slot) Supply Voltage Maximum Current +5.0 V dc 5000 mA +3.52 V dc 5000 mA Regulation Limits +5.0% to −4.0% +5.0% to −4.0% Note: For each PCI connector, the maximum power consumption is rated at 25 watts for +5 V and +3.52 V combined. Chapter 4. Power Supply 23

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Chapter 4.
Power Supply
Component Outputs
The power supply provides separate voltage sources for the system board and internal storage devices.
The following figures show the approximate power that is provided for specific system components.
Many
components draw less current than the maximum shown.
Note:
For each PCI connector, the maximum power consumption is rated at 25 watts for +5
V and
+3.52 V combined.
Figure 28. System Board
Supply Voltage
Maximum Current
Regulation Limits
+
3.52 V dc
3000 mA
+
2% to
-
2.0%
+
5.0 V dc
4000 mA
+
5.0% to
-
4.0%
+
12.0 V dc
25.0 mA
+
5.0% to
-
5.0%
-
12.0 V dc
25.0 mA
+
10.0% to
-
9.0%
Figure 29. Keyboard Port
Supply Voltage
Maximum Current
Regulation Limits
+
5.0 V dc
275 mA
+
5.0% to
-
4.0%
Figure 30. Auxiliary Device Port
Supply Voltage
Maximum Current
Regulation Limits
+
5.0 V dc
300 mA
+
5.0% to
-
4.0%
Figure 31. ISA-Bus Adapters (Per Slot)
Supply Voltage
Maximum Current
Regulation Limits
+
5.0 V dc
4500 mA
+
5.0% to
-
4.0%
-
5.0 V dc
200 mA
+
5.0% to
-
5.0%
+
12.0 V dc
1500 mA
+
5.0% to
-
5.0%
-
12.0 V dc
300 mA
+
10.0% to
-
9.0%
Figure 32. PCI-Bus Adapters (Per Slot)
Supply Voltage
Maximum Current
Regulation Limits
+
5.0 V dc
5000 mA
+
5.0% to
-
4.0%
+
3.52 V dc
5000 mA
+
5.0% to
-
4.0%
Chapter 4.
Power Supply
23