S5000VSA datasheet(36/86 Pages) INTEL

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Platform Management

Intel® Server Board S5000VSA TPS

Revision 1.4

Intel order number – D36978-006

PCI PME signal and the system should provide 3.3v standby to the PCI slots. The

server board design complies with the PCI PM Specification and the PCI 2.2

Specification

for optional 3.3V standby voltage to be supplied to each PCI, PCI-X*, and

PCI Express* slots. This support allows any compliant PCI, PCI-X, or PCI Express

adapter card to wake the system up from any sleep state except mechanical off.

Because of the limited amount of power available on 3.3V standby, the user and the OS

must configure the system carefully following the PCI Power Management Specification.

4.5.1 RESET# Control

The ESB2-E always drives the Platform Reset signal (LOW or HIGH), even when the

system is in a sleep state. This is required for PCI power management. Any device that

may be active will be able to sample this signal to know that the system is in a reset

condition.

4.5.2 PCI Vaux

All standard PCI, PCI-X*, and PCI Express* slots are provided with 3.3 V aux power to

support wake events from all sleep states. The MIC2169 power supply will deliver 4 A of

5 VSB, which in turn is regulated to 3.3 VSB when the system is in the S4 or S5 sleep

state. Standby 3.3V power will not be connected to x1 PCI Express debug slots and

these debug slots will not wake events.

4.6 System Management

The LM94 monitors the majority of the system voltages. The LM94 also monitors the VID

signals from the Dual-Core Intel® Xeon® processor 5000 sequence. All voltage levels

can be read from the LM94 via the SMBus.

4.6.1

CPU Thermal Management

Each CPU will monitor its own core temperature and thermally manage itself when it

reaches a certain temperature. The system will also utilize the internal CPU diode(s) to

monitor the die temperature. The diode pins are routed to the diode input pins in the

LM94. For valid thermal diode configurations for dual core processors, refer to thermal

diode options table. The LM94 can be programmed to force the CPU fans to full speed

operation when it senses the CPU core temperature exceeding a specific value. In

addition, the LM94 itself has an on chip thermal monitor. The placement of the LM94 will

allow it to monitor the incoming ambient temperature that is blown in by the chassis input

fan in front of the processors.

S5000VSA Datasheet(PDF) 36 Page - Intel Corporation