Hypertherm D845GEBV2 - Manual (Page 49)

Product Description
49
Table 18. Fan Connector Function/Operation for Desktop Boards with a Hardware
Monitoring and Fan Control ASIC
Connector Description
Processor fan • +12 V DC connection for a processor fan or active fan heatsink.
• Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
• Wired to a fan tachometer input of the hardware monitoring and fan control ASIC.
• Closed-loop fan control that can adjust the fan speed or switch the fans on or off
as needed.
Front chassis fan
• +12 V DC connection for a system or chassis fan.
• Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
• Wired to a fan tachometer input of the hardware monitoring and fan control ASIC.
• Closed-loop fan control that can adjust the fan speed or switch the fans on or off
as needed.
Rear chassis fan • +12 V DC connection for a system or chassis fan.
• Fan is on in the S0 or S1 state.
Fan is off when the system is off or in the S3, S4, or S5 state.
• Wired to a fan tachometer input of the hardware monitoring and fan control ASIC.
• Closed-loop fan control that can adjust the fan speed or switch the fans on or off
as needed.
For information about Refer to
The location of the fan connectors Figure 13, page 62
The location of the fan connectors and sensors for thermal monitoring Figure 10, on page 43
The signal names of the fan connectors Section 2.8.2.2, page 62
1.14.2.3 LAN Wake Capabilities
CAUTION
For LAN wake capabilities, the +5 V standby line for the power supply must be capable of
providing adequate +5 V standby current. Failure to provide adequate standby current when
implementing LAN wake capabilities can damage the power supply. Refer to Section 2.11.3 on
page 79 for additional information.
LAN wake capabilities enable remote wake-up of the computer through a network. The LAN
subsystem PCI bus network adapter monitors network traffic at the Media Independent Interface.
Upon detecting a Magic Packet
† frame, the LAN subsystem asserts a wake-up signal that powers
up the computer. Depending on the LAN implementation, the Desktop Boards D845GEBV2 and
D845GERG2 support LAN wake capabilities with ACPI in the following ways:
• The PCI bus PME# signal for PCI 2.2 compliant LAN designs
• The onboard LAN subsystem
• A CNR-based LAN subsystem