Overview
The Dell CN-0D7931 is an original equipment manufacturer (OEM) CPU heatsink assembly designed for Dell Optiplex desktop systems. This REV A00 model provides direct cooling for 775-socket Intel processors in business-class desktops. As a used, inspected unit, it maintains full thermal performance and compatibility with original Dell configurations.
Key Features
- Genuine Dell OEM heatsink assembly for guaranteed fit and compatibility
- Designed for Intel LGA775 socket processors in Optiplex 745 and compatible models
- Aluminum construction for efficient thermal dissipation
- Includes mounting hardware and thermal interface material compatibility
- REV A00 specification ensures proper fit with revision-specific system designs
Technical Specifications
Heatsink Specifications:
- Part Number: CN-0D7931-73304-73M-01GQ (and variants: D7931, 0D7931)
- Revision: A00
- Socket Type: LGA775
- Material: Aluminum with integrated mounting bracket
- Thermal Interface: Compatible with standard CPU thermal paste or pad
- Operating Temperature Range: Up to 100°C (thermal design dependent on processor TDP)
Typical Applications
This heatsink is ideal for system integrators, maintenance technicians, and IT departments requiring drop-in replacements for legacy Dell Optiplex 745 desktop systems. Common use cases include:
- CPU replacement and upgrade projects on existing Optiplex 745 systems
- Warranty replacement or component repair in office desktop environments
- System refurbishment and recertification workflows
- Spare parts inventory for multi-system deployments
Compatibility & Replacements
Compatible With
- Dell Optiplex 745 (all revisions)
- Dell Optiplex 320
- Dell Optiplex GX280
- Dell Optiplex 210L
- Intel LGA775 processors (verified socket compatibility)
Replaces / Drop-In Replacement For
- Original CN-0D7931-73304-73M-01GQ heatsink assemblies
- Dell part number D7931 and 0D7931 variants
- R6852 and 0R6852 alternative OEM part numbers
- Any cooling assembly originally shipped with Optiplex 745 REV A00 configurations
Works With
- Intel Core 2 Duo processors (E6000 series, verified for Optiplex 745 standard configurations)
- Intel Pentium D processors (for compatible Optiplex 320/GX280 systems)
- Original Dell Optiplex thermal management firmware and BIOS
- Standard PC thermal interface materials (thermal paste, thermal pads)
- Dell system diagnostic tools and thermal monitoring utilities



