Specifications

4000326 Rev A Chassis 5-21
Troubleshoot Alarm Conditions,
Continued
Troubleshooting Power Supply and Fan Tray Alarms
The following table shows the possible solutions to power supply and fan tray
alarms.
Parameter Meaning Range Possible Cause of Alarm
FansOk Fan status OK No problem
ChasTemp Fan tray temperature
-40.0°C to
65.0°C
Check ventilation
PS1_ACIn
AC input for slot 1 power
supply
OK
• Check power cord.
• Make sure power
supply is fully seated.
PS1+24
Slot 1 power supply
+24 V DC output voltage
23.8 V DC to
25.6 V DC
PS1+5VDC
Slot 1 power supply
+5 V DC output voltage
4.9 V DC to
5.6 V DC
PS1-5VDC
Slot 1 power supply
-5 V DC output voltage
-5.6 V DC to
-4.9 V DC
• Make sure power
supply is fully seated.
• Check voltage with
digital multi-meter.
Ps1Temp
Slot 1 power supply
temperature
-40.0°C to
65.0°C
Check fan operation.
PS3_ACIn
AC input for slot 3 power
supply
OK
• Check power cord.
• Make sure power
supply is fully seated.
PS3+24
Slot 3 power supply
+24 V DC output voltage
23.8 V DC to
25.6 V DC
PS3+5VDC
Slot 3 power supply
+5 V DC output voltage
4.9 V DC to
5.6 V DC
PS3-5VDC
Slot 3 power supply
–5 V DC output voltage
-5.6 V DC to
-4.9 V DC
• Make sure power
supply is fully seated.
• Check voltage with
digital multi-meter.
Ps3Temp
Slot 3 power supply
temperature
-40.0°C to
65.0°C
Check fan operation.