HP ProLiant SL390s G7 Server - Manual (Page 14)

Component identification 14
LED3 pattern LED4 pattern Interpretation
Off Flashing (1 Hz) The battery pack is below the minimum charge level and is being
charged. Features that require a battery (such as write cache, capacity
expansion, stripe size migration, and RAID migration) are unavailable
temporarily until charging is complete. The recharge process takes
between 15 minutes and 2 hours, depending on the initial capacity of
the battery.
Off
On The battery pack is fully charged, and posted write data is stored in the
cache.
Off Off The battery pack is fully charged, and no posted write data exists in
the cache.
Flashing (1 Hz) Flashing (1 Hz) An alternating green and amber flashing pattern indicates that the
cache microcontroller is executing from within its boot loader and
receiving new flash code from the host controller.
On — A short circuit exists across the battery terminals or within the battery
pack. BBWC features are disabled until the battery pack is replaced.
The life expectancy of a battery pack is typically more than 3 years.
Flashing (1 Hz) — An open circuit exists across the battery terminals or within the battery
pack. BBWC features are disabled until the battery pack is replaced.
The life expectancy of a battery pack is typically more than 3 years.
System fans
The server has eight system fans located on the rear panel of the chassis.
The following figure identifies the system fans by device number.
CAUTION: To prevent damage to the server, do not install a combination of redundant and
non-redundant fans.