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.

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%

 

 

 

 

 

 

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 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%

 

 

 

 

 

26PC 300 GL and 300 PL

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IBM PC 300GL manual Component outputs, System board Supply voltage Maximum current Tolerance