Intel SC5650 Technical Product Specification - Page 118

Chassis Cooling - guide

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Chassis Cooling 3. Chassis Cooling Intel® Server Chassis SC5650 TPS 3.1 Fan Configuration The cooling sub-system of the Intel® Server Chassis SC5650 consists of one 120mm chassis fan, one 120mm PCI fan and one 92mm drive bay fan. The cooling sub-system of the Intel® Server Chassis SC5650 UP consists of one 120mm chassis fan and one 92mm drive bay fan.The 4-wire chassis fan provides cooling at the rear of the chassis by drawing fresh air into the chassis from the front and exhausting warm air out the system. This fan is PWM controlled. The server board monitors several temperature sensors and adjusts the duty cycle of the PWM signal to drive the fan at the appropriate speed. The 4-wire PCI fan behind the PCI card guide provides cooling by drawing fresh air from the front of the chassis through PCI fan guide and exhausting it into the PCI bay area. The 4-wire 92-mm drive bay fan provides additional cooling to the drive bay by drawing fresh air from the front of the chassis through drive bay area and exhausting warm air out the bay area. Removal and insertion of the two 120-mm fans or 92-mm fan can be done without tools. The power supply internal fan assists in drawing air through the peripheral bay area, through the power supply and exhausting it out the rear of the chassis. All versions of the Intel® Server Chassis SC5650 are optimized for server and workstation boards that have an active CPU heatsink solution. If an optional hot-swap drive bay is installed, a 4-wire 92-mm fan is included with the mounting bracket kit for installation onto the drive bay. This fan has a PWM circuit that allows the server board to control the fan speed based on sensor readings of ambient temperature. The front panel of the Intel® Server Chassis SC5650 provides a TMP75 temperature sensor for BMC control. Server boards that support BMC control may use the TMP75 sensor to adjust fan speeds according to air intake temperatures. Refer to the server board documentation for configuring use of the front panel sensor. 3.2 Server Board Fan Control The fans provided in the Intel® Server Chassis SC5650 contain a tachometer signal that can be monitored by the server management subsystem for the Intel® Server Boards S5500BC, S5520HC, S5500HCV, S5520SC and S3420GP. See the specific server board Technical Product Specification for details on how this feature works. 104 Revision 1.2 Intel order number E39531-004

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Chassis Cooling
Intel® Server Chassis SC5650 TPS
Revision 1.2
Intel order number E39531-004
104
3.
Chassis Cooling
3.1
Fan Configuration
The cooling sub-system of the Intel
®
Server Chassis SC5650 consists of one 120mm chassis
fan, one 120mm PCI fan and one 92mm drive bay fan. The cooling sub-system of the Intel
®
Server Chassis SC5650 UP consists of one 120mm chassis fan and one 92mm drive bay
fan.The 4-wire chassis fan provides cooling at the rear of the chassis by drawing fresh air into
the chassis from the front and exhausting warm air out the system. This fan is PWM controlled.
The server board monitors several temperature sensors and adjusts the duty cycle of the PWM
signal to drive the fan at the appropriate speed. The 4-wire PCI fan behind the PCI card guide
provides cooling by drawing fresh air from the front of the chassis through PCI fan guide and
exhausting it into the PCI bay area. The 4-wire 92-mm drive bay fan provides additional cooling
to the drive bay by drawing fresh air from the front of the chassis through drive bay area and
exhausting warm air out the bay area.
Removal and insertion of the two 120-mm fans or 92-mm fan can be done without tools. The
power supply internal fan assists in drawing air through the peripheral bay area, through the
power supply and exhausting it out the rear of the chassis. All versions of the Intel
®
Server
Chassis SC5650 are optimized for server and workstation boards that have an active CPU
heatsink solution.
If an optional hot-swap drive bay is installed, a 4-wire 92-mm fan is included with the mounting
bracket kit for installation onto the drive bay. This fan has a PWM circuit that allows the server
board to control the fan speed based on sensor readings of ambient temperature.
The front panel of the Intel
®
Server Chassis SC5650 provides a TMP75 temperature sensor for
BMC control. Server boards that support BMC control may use the TMP75 sensor to adjust fan
speeds according to air intake temperatures. Refer to the server board documentation for
configuring use of the front panel sensor.
3.2
Server Board Fan Control
The fans provided in the Intel
®
Server Chassis SC5650 contain a tachometer signal that can be
monitored by the server management subsystem for the Intel
®
Server Boards S5500BC,
S5520HC, S5500HCV, S5520SC and S3420GP. See the specific server board Technical
Product Specification for details on how this feature works.