Patsburg Pcie; Smbus Address Mux For Gpgpu Sensor Monitoring Support - QUANTA W Mainboard Series S210-MBT2W Technical Manual

A S
BOUT THE ERVER
[1.3.24] SMBUS Address MUX for
GPGPU Sensor Monitoring Support
[1.3.25] Some high end NVIDIA GPGPU cards have on-board
sensors that allow monitoring of power consumption and ther-
mal data via the PCIe sideband SMBUS interface. S210-
MBT2W must support GPGPU sensor monitoring from desig-
nated GPGPU PCIe slots. Unfortunately since the sensor
devices on all NVIDIA GPGPU cards have the same SMBUS
address, this will create address conflicts when trying to acquire
sensor data from different cards. An SMBus MUX (PCA9545 or
PCA9546) will be required to support Address isolation
between the different cards. Connect the SMBus MUX
between the designated GPGPU slots and BMC SMBus 2.
[1.3.26] SMBus Address Isolation for GPGPU Cards
[1.3.27] The recommended components for the SMBus MUX
are as follows:
PCA9545A: IPN G10822-001

PCA9546: IPN E50300-001 (Preferred)


[1.3.28] Patsburg PCIe

[1.3.29] Patsburg SSB supports 8 x1 Gen2 downstream ports,
1 x4 Gen3 upstream port, and 1 x4 Gen2 upstream DMI2 port.
[1.3.30] Patsburg PCIe Port Connec-
tivity
[1.3.31] See table below for S210-MBT2W Server PCIe Port
connectivity.
[1.3.32] Patsburg PCIe Connectivity
SSB D
EVICE
PBG Slot 1 1-4
ASPEED
PBG AST2300 8
BMC
IEEE139
PBG 6
4b
Not in
PBG 5,7
use
1-28
P
ATSBURG
E
LECTRIC
PORT M
ODE
AL WIDTH
x4 Gen 2
x1 Gen 1
x1 Gen2
x1 Gen 2
PCI
E
C
OMMENT
Extreme
Server
SKU SKU