Dell OptiPlex 790 Important Information page 2

Power Supply Thermal Sensor Removal
The power supply thermal sensor is removed from the desktop chassis only.
Figure 2. System Board with the thermal sensor and heatsink removed
1. thermal sensor connector-1 and cable removed
2. chipset heatsink removed
3. thermal sensor connector-2
NOTE: If you have replaced your system board with a new system board for the Desktop chassis, always ensure
that the BIOS version is A11 or higher.
WARNING: If you do not update the BIOS, you may receive Alert! Chipset heat sink not detected error message
during the power-on self test (POST).
NOTE: With the new system board, it is tested and found that all component temperatures are within the
specifications.
NOTE: With the new system board, there is no impact on the system performance.
Information in this publication is subject to change without notice.
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