LED Codes
Table 2: LED Codes
LED State
DescriptionGreen Amber Red
Off Off Off Power is off.
Flashing alternately
(200ms)
Off Power is on and the drive is busy with an internal
operation. When the operation completes, the
LED should change to solid green.
On Off Off Either an ATA command is being processed or
power is on; firmware is initialized and there is
no host activity. The drive is operational in either
state.
Flashing
(30ms)
Off Off PCIe/NAND host activity is in process. The drive is
busy, but operational.
Flash error
code
Flash error
code
Flash error
code
An error code. Error codes are three digits and
are displayed by blinking the first digit, then the
second, then the third with pauses in between
and a long pause before repeating. The drive is
not operational.
Firmware fatal error codes:
• 112: Failure during DRAM initialization
• 113: Not enough DRAM to run in the config-
ured mode
• 313: DRAM UECC error
• 441: Error during chip initialization
• 411: Incorrect drive parameters in the firm-
ware image
Off Flashing
(30ms)
Off The drive is backing up internal data to NAND.
The drive is busy, but operational.
Off On Off The drive is in the safe or “parked” mode. Inter-
nal data has been written to NAND and the drive
is safe to power down.
Off Off On The drive requires a secure erase or has encoun-
tered a critical error. The drive is not operational.
P420m/P320h HHHL PCIe SSD Installation Guide
LED Codes
PDF: 09005aef8497e00a
P420m_P320h_HHHL_installation_guide.pdf - Rev. V 12/14 EN
50
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2012 Micron Technology, Inc. All rights reserved.
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