HP ProLiant DL580 Generation 3 User Manual page 106

106 HP ProLiant DL580 Generation 3 Server User Guide
2. Use the ejector lever to pull the memory board out of the server.
3. Open the memory board.
CAUTION: To prevent server failure during a hot-plug removal
procedure, do not remove the memory board from the server until the
board status LED stops flashing.
NOTE: While the memory board with the failed or degraded DIMM
is being replaced, the server continues to read and write from the
operational memory board.