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Green rectangular motherboard with silver CPU socket, four black memory slots, and silver expansion slots

DELL

DELL 03NVJ6 3NVJ6 SOCKET 775 MOTHERBOARD FOR OPTIPLEX 780 SFF

SKU CH-2NCX-HMZNX

Socket 775 motherboard with four DDR3 slots and PCI Express x16 expansion for OptiPlex 780 SFF systems

  • CPU TypeIntel Core 11th Gen (LGA 1200)
  • Supports Intel Core 11th Gen processors via LGA 1200 socket
  • DDR3 SDRAM memory type across four available slots
  • Expansion capability with PCI and PCI Express x16 slots
  • Designed for Dell Optiplex 780 SFF systems
  • New condition motherboard with part numbers 03NVJ6 and 3NVJ6

Dell Optiplex 780 SFF Motherboard

This Dell 03NVJ6 motherboard is a new replacement board built for the Optiplex 780 small form factor chassis. It uses the LGA 775 socket and accepts DDR3 SDRAM across four memory slots. The board provides PCI and PCI Express x16 expansion slots for add-in cards. It is intended for technicians repairing or upgrading that specific desktop platform.

Four DDR3 Slots and Dual Expansion

The four DDR3 SDRAM slots allow memory capacity to be scaled within the limits of the chipset and form factor. A PCI Express x16 slot supports a discrete graphics card or other high-bandwidth adapter, while a standard PCI slot remains available for legacy controllers. These connectors define the upgrade paths possible inside the slim Optiplex 780 case.

LGA 775 Socket Defines Compatibility

The LGA 775 socket determines which processors can be installed, restricting the board to CPUs designed for that interface. Buyers needing a different socket type or a newer generation platform cannot use this motherboard. Verify the exact processor model before purchase to ensure it matches the 775 pin layout and power requirements.

Highlights

  • Supports Intel Core 11th Gen processors via LGA 1200 socket
  • DDR3 SDRAM memory type across four available slots
  • Expansion capability with PCI and PCI Express x16 slots
  • Designed for Dell Optiplex 780 SFF systems
  • New condition motherboard with part numbers 03NVJ6 and 3NVJ6

Specifications

CPU TypeIntel Core 11th Gen (LGA 1200)

Questions about this item

How often will the DDR3 memory slots need replacement under normal use?

The four DDR3 slots are soldered to the board and have no moving parts; they do not wear out and normally never need replacement.

What limit appears first when the LGA 775 socket runs at full load for hours?

The CPU thermal envelope is reached before any motherboard component throttles, so processor cooling capacity becomes the practical ceiling.

How loud and hot does the board get when powered continuously in an OptiPlex 780 SFF case?

The motherboard itself produces negligible noise and heat; all audible sound and thermal output come from the installed CPU cooler and system fans.

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