Dell 790/990の取扱説明書

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Important Information — Dell OptiPlex 790/990
About Warnings
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
System Board
The Dell OptiPlex 790/ 790 computers are now shipped with a new system board without the following components:
1. Heatsink
2. Power supply thermal sensor (Desktop chassis only)
Heatsink Removal
The following image displays an earlier version of the system board shipped with the heatsink.
Figure 1. System Board of an earlier version of

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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! Chip

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