Hot-swap redundant power supply status LED
On each hot-swap redundant power supply, there is a status LED near the power cord connector.
LED
Status
Description
Action
Off
The server is off or the power
supply is not working normally.
Replace the power supply.
See “Installing or replacing a
hot-swap redundant power
supply” on page 113.
Blinking, green (about one
flash every two seconds)
The power supply is in cold
redundancy active mode.
No action is needed.
Blinking, green (about two
flashes each second)
The power supply is in cold
redundancy sleep mode.
No action is needed.
On, green
The server is on and the power
supply is working normally.
No action is needed.
Status LED
On, amber
The power supply is likely to fail
or has failed.
Replace the power supply.
See “Installing or replacing a
hot-swap redundant power
supply” on page 113.
RAID card
This topic provides information to help you locate the connectors on the RAID card installed in the upper slot
of the riser card assembly 1.
Your server comes with a RAID card to provide advanced SATA/SAS hardware RAID functions. You also
can purchase a supported RAID card from Lenovo and install it into the server. See “Replacing the RAID
card” on page 159.
Notes:
• The option kit for the RAID card is designed for different types of servers and might contain additional
cables that are not required for your server.
• The server must have a RAID card and an expander card installed to support more than eight hard
disk drives.
Your server supports the following RAID cards:
• ThinkServer RAID 500 Adapter (also known as ThinkServer 9240-8i RAID 0/1 Adapter)
• ThinkServer RAID 700 Adapter (also known as ThinkServer 9260-8i SAS RAID Adapter)
• ThinkServer RAID 710 Adapter (also known as 9270CV-8i RAID adapter)
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ThinkServer RD640 User Guide and Hardware Maintenance Manual
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