Dell PowerVault 725N (Rackmount NAS Appliance) - Manual (Page 41)

If the release lever on the processor socket is not positioned all the way up, move it to that position.
With the pin-1 corners of the processor and socket aligned, set the processor lightly in the socket, making sure all pins are matched with the correct
holes in the socket. Because the system uses a ZIF processor socket, do not use force, which could bend the pins if the processor is misaligned. When
the processor is positioned correctly, it drops down into the socket with minimal pressure.
When the processor is fully seated in the socket, rotate the socket release lever back down until it snaps into place, securing the processor.
4. Place the new heat sink on top of the processor, aligning the holes on both sides of the heat sink with the heat-sink posts on the system chassis.
5. Orient the securing clips as shown in Figure 4 -18 .
6. Position each securing clip over the heat-sink posts, then snap them onto the posts.
7. While holding down the rubber-coated tab with one hand, push the latch on the securing clip on the right until it locks the clip onto the post. While
pressing the heat sink down, repeat this step for the securing clip on the left.
8. Replace the cooling shroud.
9. Replace the system cover, and then reconnect the system and peripherals to the power source and turn on the system.
As the system boots, it detects the presence of the new processor and automatically changes the system configuration information in the System Setup
utility.
10. Press <F2> to enter the System Setup utility, and check that the processor information matches the new system configuration.
See " Using the System Setup Utility " for instructions about using the System Setup utility.
11. Run the System Diagnostics to verify that the new processor operates correctly.
See " Running the System Diagnostics " for information about running the diagnostics and troubleshooting processor problems.
System Battery
The system battery maintains your system's configuration, date, and time information in a special section of memory when you turn off the system. The
operating life of the battery ranges from 2 to 5 years, depending on how you use the system (for example, if you keep the system turned on most of the time,
the battery gets little use, and therefore lasts longer).
You might need to replace the battery if an incorrect time or date displays during the boot routine along with a message about the wrong time, invalid
configuration information, or bad CMOS checksum.
To determine if the battery needs replacing:
1. Re-enter the time and date through the System Setup utility. For more information about using the utility, see " Using the System Setup Utility ."
2. Turn off the system and disconnect it from electrical power for a few hours.
3. After several hours, reconnect the system to a power source and turn it back on.
4. Enter the System Setup utility.
NOTE: When you turn on the system, press the power button for less than two seconds. If you press the power button for longer than 3 seconds,
the NAS system shuts down.
CAUTION: See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting
against electrostatic discharge.
NOTICE: When you turn off the system, press the power button for less than 2 seconds. If you press the power button for longer than 3 seconds, the
system will automatically rebuild the RAID arrays the next time the system is turned on. This could impact system performance for several hours.
NOTE: When you turn on the system, press the power button for less than two seconds. If you press the power button for longer than 3 seconds,
the NAS system shuts down.