HP rp4410, Service Manual

Page: 143 / 246

Memory Extender Boards
The 32-DIMM memory extender board has two power status LEDs, 1.25 V and 1.5 V ( Figure 5-5 ).
When the LEDs are on, each respective voltage is present on the memory extender board.
The 16-DIMM memory extender board has one condition LED on each of the two 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 customer self-repair units.
Figure 5-5 shows the 32-DIMM memory extender board LEDs.
Figure 5-5 32-DIMM Memory Extender Board LEDs
Table 5-6 lists the 32-DIMM memory extender board LED states.
Table 5-6 32-DIMM Memory Extender Board LED States
Condition Status Color LED
Power OK On Green 1.25 V power
Power OK On Green 1.5 V power
Figure 5-6 shows the 16-DIMM memory extender board LEDs.
Troubleshooting Using LED Indicators 143