Resume On Ring; Standby Current Requirements - Intel D850GB Product Manual

Intel Desktop Board D850GB/D850GBAL Product Guide
5. Add all additional wake-enabled devices' and nonwake-enabled devices' standby current
requirements as applicable.
6. Add all the required current totals from steps 1 through 5 to determine the total estimated
standby current power supply requirement.
Table 3.

Standby Current Requirements

Instantly Available Current
Support
Estimate for integrated board
components
Estimate for add-on components
(Add to integrated board
components shown above)
* 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.

Resume on Ring

The operation of Resume on Ring can be summarized as follows:
•
Resumes operation from either the APM sleep mode or the ACPI S1 state
•
Requires only one call to access the computer
•
Detects incoming call similarly for external and internal modems
•
Requires modem interrupt be unmasked for correct operation
20
Description
Total for the D850GB board
*
PS/2 ports
PCI 2.2 slots (wake-enabled)
PCI 2.2 slots (nonwake-enabled)
WOL header
CNR* (wake enabled)
CNR* (non-wake enabled)
*
USB ports
Standby Current
Requirements (mA)
770
345
375
100
525
875
40
700