Intel SR1640TH SR1640THNA Manuel D’Utilisation

Power Sub-System 

Intel® Server System SR1640TH TPS 

  

Revision 

1.0 

Intel order number: E94847-001 

70 

 

The data format for current, voltage, power, temperature, and fan speed are using the 
PMBus Literal format. 

 

 
Literal data format: X = Y · 2

N

 

X = the sensor value in volts, amps, watts, degrees C, or RPM 
Y = mantissa. The mantissa is the variable components that changes as the sensor value 
changes. Y is a 16-bit unsigned value for the READ_VOUT command. For all other READ 
commands, Y is an 11-bit signed 2’s compliment value. N = exponent. The exponents are 
fixed for each power supply and define the resolution for each sensor. 
 

The following PMBus commands are supported for the purpose of monitoring currents, 
voltages, power and status: 
 

MFR_ID READ_IOUT 

MFR_MODEL READ_VOUT 
MFR_IOUT_MAX  

STATUS_CML 

PMBUS_REVISION  

STATUS_TEMPERATURE 

READ_POUT  

STATUS_FANS_1_2 

READ_PIN  

STATUS_INPUT 

READ_FAN_SPEED_n  

MFR_REVISION 

STAUTS_IOUT  

CAPABLITY 

STAUTS_VOUT CLEAR_FAULTS 
STATUS_WORD ON_OFF_CONFIG 
STATUS_BYTE OPERATION 
QUERY  

PAGE 

MFR_SERIAL  

MFR_POUT_MA 

 

 

The information to be contained in the FRU device is shown in the following table 

Area type 

Description 

Common header 

As defined by the FRU document 

Internal use area 

Not required, do not reserve 

Chassis info area 

Not required, do not reserve 

Board info area 

Not required, do not reserve 

Implement as defined by the IPMI FRU document. Product information shall be defined as 
follows: