Technical Reference
79
Table 54. Standby Current Requirements
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Requirements Description
Standby Current
Requirements (mA)
Minimum
Total for the board 767
Onboard LAN (optional) 95
WOL header connected to wake enabled PCI LAN card 525
PS/2 ports (Note) 345
AGP and PCI 2.2 slots (wake enabled devices) (Note) 375
AGP and PCI 2.2 slots (non-wake enabled devices) (Note) 20
USB ports (Note) 517.5 (max)
Optional
CNR (Note) 375
Note: Dependent upon system configuration. See the note on the following page.
✏
NOTE
AGP and 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 (Actual measurements are 220 mA-300 mA, depending on the type of
keyboard and the operational state of the keyboard’s LEDs.)
• Mouse @ 70 mA
USB requirements are calculated by totaling the following:
• One wake-enabled device @ 500 mA
• Three USB non-wake-enabled devices @ 2.5 mA each
The USB ports are limited to a combined total of 700 mA.
CNR requirements are calculated as follows:
• One wake-enabled device @ 375 mA
• Non wake-enabled devices @ 20 mA
2.11.4 Fan Connector Current Capability
The D815EEA board is designed to supply a maximum of 225 mA per fan connector.
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