Lenovo Aptiva Product guide for Aptiva 6864 machine. - Page 37

PS/2 Ports requirements per the IBM PS/2 Port Specification Sept 1991, Table 1.

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Page 37 highlights

Motherboard Features Table 1. Standby Current Requirements Instantly Available Current Support (Estimated) Description Standby Power Indicator LED Front Panel LED I/O Controller (LPC47M102) RS-232 Transceivers* Chipset/Memory (RDRAM)* Miscellaneous Instantly Available control logic ICH Glue3 ASIC PCI 2.2 (5 slots + AGP)* Total Optional Current Support (Add to Standard STR total. See instructions above.) Description 82559 LAN controller AMR* PS/2 Ports* USB Ports* * Dependent upon system configuration Current Requirements (mA) 12 12 10 60 100 15 0.3 2.2 475 676.5 Current Requirements (mA) 225 150 300 607.5 ✏ NOTE PCI requirements are calculated by totaling the following:  One wake-enabled device @ 375 mA  Five non wake-enabled devices @ 20 mA each PS/2 Ports requirements per the IBM PS/2 Port Specification (Sept 1991):  Keyboard @ 275 mA  Mouse @ 70 mA USB requirements are calculated by totaling the following:  One wake-enabled device @ 500 mA  USB hub @ 100 mA  Three USB non-wake-enabled devices @ 2.5 mA each The USB ports are limited to a combined total of 700 mA. 37

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Motherboard Features
37
Table 1.
Standby Current Requirements
Description
Current Requirements (mA)
Standby Power Indicator LED
12
Front Panel LED
12
I/O Controller (LPC47M102)
10
RS-232 Transceivers*
60
Chipset/Memory (RDRAM)*
100
Miscellaneous Instantly Available
control logic
15
ICH
0.3
Glue3 ASIC
2.2
PCI 2.2 (5 slots + AGP)*
475
Instantly Available Current
Support (Estimated)
Total
676.5
Description
Current Requirements (mA)
82559 LAN controller
225
AMR*
150
PS/2 Ports*
300
Optional Current Support
(Add to Standard STR total. See
instructions above.)
USB Ports*
607.5
*
Dependent upon system configuration
✏
NOTE
PCI requirements are calculated by totaling the following:
One wake-enabled device @ 375 mA
Five non wake-enabled devices @ 20 mA each
PS/2 Ports requirements per the IBM PS/2 Port Specification (Sept 1991):
Keyboard @ 275 mA
Mouse @ 70 mA
USB requirements are calculated by totaling the following:
One wake-enabled device @ 500 mA
USB hub @ 100 mA
Three USB non-wake-enabled devices @ 2.5 mA each
The USB ports are limited to a combined total of 700 mA.