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Before working inside your computer - OptiPlex 3240 All-in-One
Before working inside your computer Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following...

Recommended tools - OptiPlex 3240 All-in-One
Recommended tools The procedures in this document require the following tools: Small flat blade screwdriver Phillips screwdriver Small plastic scribe

Removing the WLAN card - OptiPlex 3240 All-in-One
Removing the WLAN card Follow the procedure in Before Working Inside Your Computer . Remove the:standback coversystem-board shieldTo remove the WLAN card:Disconnect the antenna cables from the connectors on the WLAN card [1]. Remove the screw that secures the...

Removing the speaker module - OptiPlex 3240 All-in-One
Removing the speaker module Follow the procedure in Before Working Inside Your Computer . Remove the:standback covercable coverspeaker coversystem-board shieldTo release the speaker module:Disconnect the speaker cable from the connector on the system board [1...

Removing the converter board - OptiPlex 3240 All-in-One
Removing the converter board Follow the procedure in Before Working Inside Your Computer . Remove the:standback covercable coverspeaker coversystem-board shieldVESA mount bracketTo disconnect the cables connected to the converter board: Disconnect the convert...

Removing the Power Supply Unit (PSU) - OptiPlex 3240 All-in-One
Removing the Power Supply Unit (PSU) Follow the procedure in Before Working Inside Your Computer . Remove the:standback covercable coverspeaker coversystem-board shieldTo disconnect the cables from the PSU:Unthread the power-supply cables from the retention c...

Installing the Power Supply Unit (PSU) - OptiPlex 3240 All-in-One
Installing the Power Supply Unit (PSU) Place the PSU on the chassis. Tighten the screw to secure the PSU to the chassis. Place the socket in the slot on the chassis. Tighten the screw to secure the power supply socket to the chassis. Thread the power-supply c...

Removing the processor fan - OptiPlex 3240 All-in-One
Removing the processor fan Follow the procedure in Before Working Inside Your Computer . Remove the:standback coversystem-board shieldpower-supply unitVESA mount bracketTo remove the processor fan:Disconnect the processor-fan cable from the connector on the s...

Boot Sequence - OptiPlex 3240 All-in-One
Boot Sequence Boot Sequence allows you to bypass the System Setup‐defined boot device order and boot directly to a specific device (for example: optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can: Access Sy...

System setup options - OptiPlex 3240 All-in-One
System setup options NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not appear.

Security screen options - OptiPlex 3240 All-in-One
Security screen options Option Description Admin Password Allows you to set, change, or delete the administrator (admin) password. NOTE: You must set the admin password before you set the system or hard drive password. Deleting the admin password automaticall...

Intel software guard extension options - OptiPlex 3240 All-in-One
Intel software guard extension options Option Description Intel SGX Enable This option is to provide a secured environment for running sensitive information in the context of the main OS. Disabled Enabled Default setting: Disabled. Enclave memory size Allows ...

Performance screen options - OptiPlex 3240 All-in-One
Performance screen options Option Description Multi Core Support Specifies whether the process will have one or all cores enabled. The performance of some applications will improve with the additional cores. All - This option is enabled by default 1 2 3 Intel...

Power management screen options - OptiPlex 3240 All-in-One
Power management screen options Option Description AC Recovery Specifies how the computer will respond when AC power is applied after an AC power loss. You can set the AC Recovery to: Power Off (default) Power On Last Power State Auto On Time Allows you to se...

System log screen options - OptiPlex 3240 All-in-One
System log screen options Option Description BIOS Events Allows you to view and clear the System Setup (BIOS) POST events. Clear Log

Assigning a system password and setup password - OptiPlex 3240 All-in-One
Assigning a system password and setup password You can assign a new System Password and/or Setup Password or change an existing System Password and/or Setup Password only when Password Status is Unlocked. If the Password Status is Locked, you cannot change th...

Deleting or changing an existing system and/or setup password - OptiPlex 3240 All-in-One
Deleting or changing an existing system and/or setup password Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing System and/or Setup password. You cannot delete or change an existing System or ...

Communication specifications - OptiPlex 3240 All-in-One
Communication specifications Features Specification Network adapter Intel 10/100/1000 Mbps RJ-45 Ethernet Wireless M.2 2230 card combo M.2 card (Intel Wireless 8260 M.2 PCIe WLAN card (802.11n/ac) with Bluetooth)

Removing the On-Screen Display (OSD) buttons board - OptiPlex 3240 All-in-One
Removing the On-Screen Display (OSD) buttons board Follow the procedure in Before Working Inside Your Computer . Remove the:standback coveroptical driveTo remove the OSD buttons board:Remove the screw to remove the metal plate that secures the OSD buttons boa...

Installing the OSD buttons board - OptiPlex 3240 All-in-One
Installing the OSD buttons board Connect the OSD buttons cable to the OSD buttons board. Affix the tape on the OSD buttons board. Insert the OSD buttons board into the slot. Align the metal plate on the OSD buttons board. Tighten the screw to secure the OSD b...
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