• (P) is the module part number.
• (L) is the technical details shown on the label.
• (S) is the module serial number.
Example: (P)HMN82GR7AFR4N-VK (L)16GB 1Rx4 NN4-2666V-RZZZ-10(S)80AD-01-1742-11AED5C2
NVDIMM LED identification
Item LED description LED color
1 Power LED Green
2 Function LED Blue
NVDIMM-N LED combinations
State Definition NVDIMM-N Power LED
(green)
NVDIMM-N Function
LED (blue)
0 AC power is on (12V rail) but the NVM
controller is not working or not ready.
On Off
1 AC power is on (12V rail) and the NVM
controller is ready.
On On
2 AC power is off or the battery is off (12V
rail off).
Off Off
3 AC power is on (12V rail) or the battery is
on (12V rail) and the NVDIMM-N is active
(backup and restore).
On Flashing
NVDIMM Function LED patterns
For the purpose of this table, the NVDIMM-N LED operates as follows:
• Solid indicates that the LED remains in the on state.
• Flashing indicates that the LED is on for 2 seconds and off for 1 second.
• Fast-flashing indicates that the LED is on for 300 ms and off for 300 ms.
18 Component identification
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