Figure 82. Installing the heat sink
1. retention screw slot (4)
2. retention screw (4)
3. heat sink
4. processor shield
Next steps
1. Follow the procedure listed in the After working inside your system section.
2. While booting, press F2 to enter System Setup and verify that the processor information matches the new system
configuration.
3. Run the system diagnostics to verify that the new processor operates correctly.
Redundant AC power supply
Your system supports either:
●
Two 495 W, 750 W, or 1100 W (Platinum) AC power supply modules or
●
Two 450 W (Bronze) AC power supply modules
NOTE:
When two identical PSUs are installed, power supply redundancy (1+1 – with redundancy or 2+0 – without
redundancy) is configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs
when Hot Spare is disabled. When Hot Spare is enabled, one of the PSUs will be put into standby when system utilization is
low to maximize efficiency.
CAUTION:
If two power supplies are used, they must be of the same maximum output power.
NOTE:
For AC power supplies, use only power supplies with the Extended Power Performance (EPP) label on the back.
Mixing PSUs from previous generations of servers can result in a power supply mismatch condition or failure to power on.
NOTE:
When you have more than two GPU cards on your system, you will need two 1100 W power supply units installed on
your system.
Hot spare feature
Your system supports the hot spare feature that significantly reduces the power overhead associated with power supply unit
(PSU) redundancy.
When the hot spare feature is enabled, one of the redundant PSUs is switched to the sleep state. The active PSU supports 100
percent of the load, thus operating at higher efficiency. The PSU in the sleep state monitors output voltage of the active PSU. If
the output voltage of the active PSU drops, the PSU in the sleep state returns to an active output state.
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Installing and removing system components
