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26 PC 300 GL and 300 PL
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 5 watts
for +5 V dc and +3.3 V dc combined. If maximum power is used, the overall
system configuration will be limited in performance.
Table 10. System board
Supply voltage Maximum current Tolerance
+3.3 V dc 5000 mA +5.0% to -5.0%
+5.0 V dc 6000 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%
Table 11. Keyboard port
Supply voltage Maximum current Tolerance
+5.0 V dc 275 mA +5.0% to -4.0%
Table 12. Auxiliary device port
Supply voltage Maximum current Tolerance
+5.0 V dc 300 mA +5.0% to -4.0%
Table 13. PCI-bus adapters (per slot)
Supply voltage Maximum current Tolerance
+5.0 V dc 1000 mA +5.0% to -4.0%
+3.3 V dc 1500 mA +5.0% to -4.0%
Table 14. USB port
Supply voltage Maximum current Tolerance
+5.0 V dc 500 mA +5.0%to -4.0%
Table 15. Internal DASD
Supply voltage Maximum current Tolerance
+5.0 V dc 1400 mA +5.0% to -5.0%