DELL
DELL OptiPlex 3240 AIO Motherboard 4075X LGA 1151 DDR3L laptop replacement part
OEM Dell motherboard with Intel LGA 1151 socket and DDR3L support for OptiPlex 3240 All-In-One repair
- Compatible ManufacturerFor Dell
- Compatible ModelsFor Dell OptiPlex 3240 All-In-One
- ColorGreen
- Genuine Dell part ensures exact fit for OptiPlex 3240 AIO
- Intel LGA 1151 socket supports compatible 6th/7th Gen processors
- DDR3L memory support enables efficient multitasking performance
- Integrated Intel HD Graphics handles standard display requirements
- PCIe and M.2 slots provide storage and peripheral expansion options
DELL OptiPlex 3240 AIO Motherboard 4075X
This is a brand-new Dell 4075X motherboard built for the OptiPlex 3240 All-In-One desktop. It carries an Intel LGA 1151 socket and supports DDR3L memory for stable operation. The board matches original Dell specifications so it fits directly without modification. It is intended for technicians and owners repairing or upgrading this specific chassis.
Who this suits and who should look elsewhere
Repair shops and IT teams replacing a failed board in an OptiPlex 3240 AIO will find a direct-fit part here. Builders wanting a motherboard for a different form factor, a different socket or a newer memory standard cannot use this unit. Buyers who need more expansion lanes than the original design provides should consider other platforms.
Deciding specification: Intel LGA 1151 socket
The Intel LGA 1151 socket determines which processors this board accepts. Only CPUs made for that socket will install and function correctly. Verify the processor you plan to use matches this socket before purchasing.
Highlights
- Genuine Dell part ensures exact fit for OptiPlex 3240 AIO
- Intel LGA 1151 socket supports compatible 6th/7th Gen processors
- DDR3L memory support enables efficient multitasking performance
- Integrated Intel HD Graphics handles standard display requirements
- PCIe and M.2 slots provide storage and peripheral expansion options
Specifications
| Brand | Dell |
|---|---|
| Model | OptiPlex 3240 |
| Part Number | 4075X |
| Compatible Manufacturer | For Dell |
| Compatible Models | For Dell OptiPlex 3240 All-In-One |
| Color | Green |
Questions about this item
What CPUs can the LGA 1151 socket on the 4075X motherboard accept?
The socket fits 6th and 7th generation Intel processors; the board will not boot with earlier or later generations.
What chassis dimensions does the 4075X require for a direct fit in an OptiPlex 3240 All-In-One?
It matches the original OptiPlex 3240 AIO mounting points and I/O cut-outs exactly; no adapter brackets are needed.
Which steps are often missed when installing the 4075X in an OptiPlex 3240 AIO?
Re-applying thermal paste on the CPU, reconnecting the display and touch cables, and seating DDR3L modules until the latches click are the steps most often skipped.
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