Intel S875WP1 Product Guide - Page 27

Resume on Ring, Wake from USB, Wake from PS/2 Devices, Hardware Support - e power supply

Get Intel S875WP1 - EATX MBD 875 P4 DDR-2CH SATA RAID VID GETH PDF manuals and user guides
UPC - 735858161381
View all Intel S875WP1 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 27 highlights

Resume on Ring Resume on Ring enables telephony devices to access the computer when it is in a power-managed state. The operation of Resume on Ring wakes the system from the S1 or S3 sleep states when a signal is sent to the serial port at the rear or the chassis or to an internally installed modem. Resume on ring can be summarized as follows: • Resumes operation from ACPI S1 or S3 states • 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 Wake from USB USB bus activity wakes the computer from an ACPI S1 or S3 state. ✏ NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. Wake from PS/2 Devices PS/2 device activity, such as moving a PS/2 mouse or pressing a key on a PS/2 keyboard, wakes the computer from an ACPI S1 or S3 state. Hardware Support The S875WP1-E server board provides several power management hardware features, including: • Power connector • Fan connectors • Instantly Available PC technology Instantly Available PC technology and LAN Wake require power from the +5 V standby line. The sections discussing these features describe the incremental standby power requirements. CAUTION Ensure that the power supply provides adequate +5 V standby current if Instantly Available PC technology features is used. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. Server Board Features 27

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
Server Board Features
27
Resume on Ring
Resume on Ring enables telephony devices to access the computer when it is in a power-managed
state.
The operation of Resume on Ring wakes the system from the S1 or S3 sleep states when a
signal is sent to the serial port at the rear or the chassis or to an internally installed modem. Resume
on ring can be summarized as follows:
•
Resumes operation from ACPI S1 or S3 states
•
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
Wake from USB
USB bus activity wakes the computer from an ACPI S1 or S3 state.
NOTE
Wake from USB requires the use of a USB peripheral that supports
Wake
from USB.
Wake from PS/2 Devices
PS/2 device activity, such as moving a PS/2 mouse or pressing a key on a PS/2 keyboard, wakes the
computer from an ACPI S1 or S3 state.
Hardware Support
The S875WP1-E server board provides several power management hardware features, including:
•
Power connector
•
Fan connectors
•
Instantly Available PC technology
Instantly Available PC technology and LAN Wake require power from the +5 V standby line.
The
sections discussing these features describe the incremental standby power requirements.
CAUTION
Ensure that the power supply provides adequate +5 V standby current if
Instantly Available PC technology features is used.
Failure to do so can
damage the power supply.
The total amount of standby current required
depends on the wake devices supported and manufacturing options.