32 About Your System
E1620 Power Supply # 
(### W) AC 
power error. 
Check PSU 
cables.
Specified power supply's 
AC input is outside of the 
allowable range.
Check the AC power 
source for the specified 
power supply. If the 
problem persists, 
see "Troubleshooting 
Power Supplies" on 
page 163.
E1624 Lost power 
supply 
redundancy. 
Check PSU 
cables.
The power supply 
subsystem is no longer 
redundant. If the 
remaining power supply 
fails, the system 
shuts down.
See "Troubleshooting 
Power Supplies" on 
page 163.
E1626 PSU Mismatch. The power supplies in 
the system are not the 
same wattage.
Ensure that power 
supplies with matching 
wattage are installed. 
See the Technical 
Specifications outlined in 
your system’s Getting 
Started Guide.
E1629 Power required 
> PSU wattage. 
Check PSU and 
config.
The system configuration 
requires more power than 
the power supplies can 
provide, even with 
throttling.
Turn off power to the 
system, reduce the 
hardware configuration or 
install higher-wattage 
power supplies, and then 
restart the system.
E1710 I/O channel 
check error. 
Review & clear 
SEL.
The system BIOS has 
reported an I/O channel 
check. 
Check the SEL for 
more information and 
then clear the SEL. 
Remove AC power to the 
system for 10 seconds and 
restart the system.
If the problem persists, 
see "Getting Help" on 
page 187.
Code Text Causes Corrective Actions
book.book  Page 32  Tuesday, August 24, 2010  1:47 PM