[Wedge100BF-series] PSU Follow

Purpose:

This is the troubleshooting guide for the PSU on Wedge100BF-series.

Model:

Wedge100BF-32X/65X/32QS

Procedure:

Step 1. Specify the problem is on PSU or PSU slot

When plug-in the power, both of the AC LED(upper) and DC LED(lower) shall be Green if it work well. When no power plug-in only insert the PSU to switch(another PSU already power on), the LED should be AC LED off and DC LED Yellow.
[Note] PSU model PFE600-12-054NA keeps AC LED off and DC LED Yellow, model PFE1100-12-054NA become both LED off after a few seconds.

If the power plug-in but AC LED off and DC LED Yellow or both LED off, the PSU might be defective.

Use Cross Comparison tests to judge which has the problem, PSU or PSU slot.

Swap PSU1 and PSU2, or prepare another switch with same model(Wedge100BF-series) and PSU module to do the Cross Comparison tests.

According to the result, decide to run the RMA process with only specific PSU or switch.

Step 2. Dump the PSU status

Method 1. Use "sensors" command to dump the log to us.

Caution: PSU-7:0x59 is PSU2 and PSU-7:0x5A is PSU1.

root@bmc:~# sensors
(...omitted)
psu_driver-i2c-7-59
Adapter: ast_i2c.7
PSU2 Input Voltage: +0.00 V
PSU2 12V Output Voltage: +0.00 V
PSU2 5/3.3V Output Voltage: +0.00 V
PSU2 FAN: 0 RPM
PSU2 Temp1: +0.0 C
PSU2 Temp2: +0.0 C
PSU2 Temp3: N/A
PSU2 Input Power: 0.00 W
PSU2 12V Output Power: 0.00 W
PSU2 5/3.3V Output Power: N/A
PSU2 Input Current: +0.00 A
PSU2 12V Output Current: +0.00 A
PSU2 5/3.3V Output Current: N/A

psu_driver-i2c-7-5a
Adapter: ast_i2c.7
PSU1 Input Voltage: +221.50 V
PSU1 12V Output Voltage: +12.02 V
PSU1 5/3.3V Output Voltage: +3.33 V
PSU1 FAN: 6144 RPM
PSU1 Temp1: +31.5 C
PSU1 Temp2: +45.1 C
PSU1 Temp3: N/A
PSU1 Input Power: 308.00 W
PSU1 12V Output Power: 290.00 W
PSU1 5/3.3V Output Power: N/A
PSU1 Input Current: +1.38 A
PSU1 12V Output Current: +24.12 A
PSU1 5/3.3V Output Current: N/A
(...omitted)

Method 2. Login Diag mode to dump the log to us.

To login Diag, please refer to the article: Install and start up Accton Diag

Choose item "199 Show PSU status" to test

*********************************************************
(...omitted)
199 Show PSU status
(...omitted)
*********************************************************
Please enter your choice (0 to quit): 199
PSU-7:0x59
 Present status: Present
 PowerUp status: Off
 Power type : DC (PFE600-12-054NA)
 Vin : 1000
 Vout : 0
 Iin : 0
 Iout : 0
 Pin : 0
 Pout : 0
 Temperature_1 : 27750
 Temperature_2 : 29125
 SN : 420184937120600799
Show PSU status is passed.
PSU-7:0x5A
 Present status: Present
 PowerUp status: On
 Power type : DC (PFE600-12-054NA)
 Vin : 224500
 Vout : 12000
 Iin : 515
 Iout : 7000
 Pin : 92000
 Pout : 84000
 Temperature_1 : 42125
 Temperature_2 : 28125
 SN : 420184937120600076
Show PSU status is passed.

Item (199) test result: PASSED

Note: This Diag test item just shows the PSU status, "PASSED" doesn't ensure there's no problem on that PSU.