Circuit Boards

Dell CU395 E139765 Motherboard CN-0TY915-70821-77C-D2NB

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$44.99

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C-4-5-415 Used, tested, fully functional 1 in stock
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Overview

The Dell CU395 E139765 motherboard (CN-0TY915-70821-77C-D2NB) is a legacy circuit board designed for Dell OptiPlex 320 mini-tower systems. This LGA775-based platform provides robust connectivity and is engineered to support a range of Intel processors. The board includes essential I/O connectivity including Ethernet (RJ-45) for network integration, making it suitable for system rebuilds, lab environments, or legacy equipment maintenance.

Key Features

  • LGA775 Socket: Supports Intel Pentium 4 and Core 2 processors with Hyper-Threading Technology capability
  • Network Connectivity: Integrated Ethernet (RJ-45) port for reliable network communication
  • Mini-Tower Form Factor: Optimized for Dell OptiPlex 320 compact desktop enclosures
  • Standard I/O Configuration: Front panel headers, battery socket, and rear I/O connectivity
  • Tested & Functional: Verified working condition, pulled from operational systems

Technical Specifications

  • CPU Socket: LGA775 (Socket 775)
  • Supported Processors: Intel Pentium 4, Core 2 Duo, Pentium D
  • Form Factor: Mini-Tower Motherboard
  • I/O Ports: Ethernet RJ-45, USB, Audio connectors
  • Battery: 3V CMOS battery socket
  • Front Panel Header: Standard 10-pin connector for case controls
  • Board Revision: Various (see product variants)
  • Compatibility: Dell OptiPlex 320 systems

Typical Applications

  • Legacy desktop system repairs and component replacement
  • Refurbishment and recertification of OptiPlex 320 units
  • Spare parts inventory for corporate PC maintenance departments
  • Laboratory and test environments requiring compatible hardware
  • System integrators sourcing used components for budget-conscious builds

Compatibility & Replacements

Compatible With

  • Dell OptiPlex 320 Mini-Tower desktop systems
  • Intel LGA775 processors (Pentium 4, Core 2 Duo, Pentium D)
  • Standard DDR2 SDRAM memory modules
  • Dell OptiPlex 320 power supplies and case assemblies

Replaces / Drop-In Replacement For

  • Dell CU395 (alternative part designation)
  • Dell TY915 (alternative board designation)
  • Dell MH651 (alternative model number)
  • Dell UP453 (alternative reference number)

Works With

  • Windows XP, Windows Vista, Windows 7 (original supported OS)
  • Standard BIOS/UEFI firmware for Dell OptiPlex 320
  • Dell DRAC and iDRAC management tools (where applicable)
  • Legacy system monitoring and diagnostic utilities
Motherboard Part Number

CU395 / E139765 / CN-0TY915-70821-77C-D2NB

System Compatibility

Dell OptiPlex 320

CPU Socket

LGA775 (Socket 775)

Supported Processors

Intel Pentium 4, Core 2 Duo, Pentium D

Form Factor

Mini-Tower

Memory Support

DDR2 SDRAM

Network Connectivity

Ethernet RJ-45

Front Panel Header

10-pin standard connector

CMOS Battery

3V socket

Manufacturer

Dell / Bluford

Condition

Used, tested, fully functional

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