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Green rectangular Dell motherboard with silver CPU socket and black expansion slots

DELL

DELL 478Vn Motherboard Socket 1156 Inspiron 660 Vostro 270S

SKU CH-CZQ2-NRJX1

Socket 1156 desktop motherboard for Dell Inspiron 660 and Vostro 270S systems

  • Direct replacement for Inspiron 660 desktops
  • Matches Vostro 270S series systems exactly
  • Socket 1156 supports compatible Intel processors
  • Genuine Dell 478Vn part ensures fit
  • Ready for immediate desktop board installation

Dell 478Vn Motherboard for Inspiron 660

This Dell 478Vn motherboard uses the LGA 1156 socket and is built specifically for the Inspiron 660 and Vostro 270S desktop series. It serves as a direct replacement board for those OEM systems. Buyers needing a board for a different chassis or a newer CPU generation cannot use this part.

Proprietary OEM layout with standard I/O

The board follows Dell’s proprietary mounting pattern and front-panel header arrangement for the Inspiron 660 and Vostro 270S cases. Standard rear I/O cutouts align with the original chassis back panel. Builders using a non-Dell case or a custom front-panel connector will find the pinout and screw holes incompatible.

LGA 1156 socket defines CPU choice

The single specification that decides fit is the LGA 1156 socket, which accepts only first-generation Core i3, i5 and i7 processors. No later Intel desktop CPUs will install in this board. If the upgrade path requires a newer socket, this motherboard is not the correct part.

How it compares

Measured against everything we stock in Embedded & Replacement Boards, at today’s prices. Recalculated every night.

Price $72.99
Typical for this category: the median of 117 items is $72.99.

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Specifications

Product
Brand nameDELL

Questions about this item

What LGA 1156 processors does this 478Vn board support?

The board uses the LGA 1156 socket, so it accepts compatible Intel Core i3, i5 or i7 CPUs from the Lynnfield or Clarkdale families.

Will this motherboard fit inside an Inspiron 660 or Vostro 270S chassis?

Yes, the 478Vn is the direct replacement for the original board in those models and matches the OEM mounting points and I/O shield.

How do I install the 478Vn board and what step is often missed?

Align the board with the chassis standoffs, secure it with screws, then reconnect the front-panel header, CPU fan and power cables — forgetting the four-pin CPU power plug is the common oversight.

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