50 About Your System
Warning! Power 
required exceeds 
PSU wattage. 
Check PSU and 
system 
configuration. 
Warning! 
Performance 
degraded. CPU and 
memory set to 
minimum 
frequencies to 
meet PSU wattage. 
System will 
reboot.
The system configuration of 
processor, memory modules, 
and expansion cards may not 
be supported by the power 
supplies. 
If any system components 
were just upgraded, return 
the system to the previous 
configuration. If the system 
boots without this warning, 
then the replaced 
component(s) are not 
supported with this power 
supply. If Energy Smart 
power supplies are installed, 
replace them with the High 
Output power supplies to 
use the components. See 
"Power Supplies" on 
page 125.
Warning! PSU 
mismatch. PSU 
redundancy lost. 
Check PSU.
A High Output power supply 
and an Energy Smart power 
supply are installed in the 
system at the same time.
Install two High Output or 
two Energy Smart power 
supplies in the system.
You can also run the system 
on one power supply until 
you can obtain two power 
supplies of the same type. 
See "Troubleshooting Power 
Supply" on page 151.
Warning! 
Unsupported 
memory 
configuration 
detected. The 
memory 
configuration is 
not optimal. The 
recommended 
memory 
configuration 
is: 
<message>.
Invalid memory 
configuration. The system 
will run but with reduced 
functionality.
Ensure that the memory 
modules are installed in a 
valid configuration. 
See "General Memory 
Module Installation 
Guidelines" on page 106. 
If the problem persists, 
see "Troubleshooting System 
Memory" on page 153.
Table 1-3. System Messages (continued)
Message Causes Corrective Actions
R310HOM.book  Page 50  Thursday, March 4, 2010  1:03 AM