Hardware options installation 55
IMPORTANT: If an HP ProLiant DL980 G7 with System ROM 2010.07.27 or a ProLiant DL580
G7 with System ROM 2010.08.28 is used with Integrated Lights-Out 3 (iLO 3) Firmware Version
1.15 (or later) and I/O cards are installed in SubIO (I/O expansion board) slots or LPIO (Low
Profile PCI-e I/O expansion board) slots, then the server Power-On-Boot process may stop
responding at the point where "Inlet Ambient Temperature" is displayed.
The issue has been detected with a large range of I/O cards including the HP NC522SFP 10G
NIC, Smart Array P212 Controller, and Smart Array P800 Controller. In addition, this may also
potentially occur when any I/O card is installed in SubIO/LPIO slots with the BIOS/iLO 3
firmware combination described above.When this occurs, there are no Integrated Management
Log (IML) events or other indications other than the boot sequence does not progress past "Inlet
Ambient Temperature" as shown above.
To prevent the server from ceasing to respond during the Power-On-Boot process, upgrade the
System ROM to HP ProLiant DL980 G7 System ROM 2011.01.27 (or later).
IMPORTANT: Any HP ProLiant DL980 server configured with any of the following HP IO
Accelerator cards:
• 160GB SLC PCIe ioDrive (part number 600278-B21)
• 320GB MLC PCIe ioDrive (part number 600279-B21)
• 320GB SLC PCIe ioDuo (part number 600281-B21)
• 640GB MLC PCIe ioDuo (part number 600282-B21)
• 1.28TB MCL PCIe ioDuo (part number 641027-B21)
may experience thermal throttling when the server is running a System ROM dated July
27, 2010 (2010.07.27) or July 7, 2010 under both of the following conditions:
• An application has sustained high WRITE-bandwidth demands to the HP IO
Accelerators.
• High ambient (data center) temperature (>25deg C).
When the IO accelerator card begins thermal throttling, the system will display the
following warnings:
Thermal throttling activated (<junction temp in degC>)
When the IO accelerator card stops thermal throttling, the system will display the
following warning:
Thermal throttling deactivated (<junction temp in degC>)
The above warning messages will be logged as follows:
• For Linux operating systems in: /var/log/messages
• For Windows operating systems in: the Windows system event log.
To avoid the temperature messages, perform either of the following:
• Accept "reduced write bandwidth" when prompted by the server. (With reduced
cooling, the IO Accelerator cards will self manage the critical internal component
temperature to stay within specifications. With no firmware change, the IO
Accelerator cards will reduce WRITE bandwidth to remain within temperature
specifications. The expected WRITE bandwidth reduction is relatively small.)
• Upgrade the System ROM to a version dated January 27, 2011 (1/27/2011) or
later.
