Chapter 3
Troubleshooting
Troubleshooting Using LED Indicators
33
The 16 DIMM memory extender board has one condition LED on each of the 2 VRMs. If either condition VRM
LED is on, there is a problem with that VRM. You must replace the entire extender board in this case; the
VRMs are not Field Replaceable Units (FRUs).
Figure 3-4
32 DIMM Memory Extender Board LEDs
Table 3-9
32 DIMM Memory Extender Board
LED
Color
Status
Condition
1.25V
Power
Green
On
Power OK
1.5V
Power
Green
On
Power OK
1.5V LED
1.25V LED