1TKCC - Motherboard / System Board for OptiPlex 380

G41 LGA775 DDR3 MicroATX Motherboard For OptiPlex 380 MT DT

The 01TKCC system board is the original motherboard used in OptiPlex 380 Mini Tower and Desktop systems. It features the Intel G41 chipset with LGA 775 socket, DDR3 memory support, PCI Express x16 graphics expansion, and a full set of legacy ports (parallel, serial, VGA) alongside Gigabit Ethernet and USB 2.0.
Ideal as a direct replacement for a failed board or for restoring an OptiPlex 380 with the correct form factor and connector layout.

Technical Specifications

• DPN: 01TKCC (DP/N 01TKCC)
• Board ID / PCB Code: AZ0423
• Form Factor: MicroATX style board for OptiPlex 380 MT/DT chassis
• Chipset: Intel G41 Express with ICH7 Southbridge
• CPU Socket: LGA 775 (Socket T)

• Supported Processor Families:

• Intel Core 2 Quad
• Intel Core 2 Duo and Pentium Dual-Core
• Intel Celeron (LGA 775 series)

• Memory Support:

• 2 x DDR3 DIMM slots
• DDR3 1066 MHz non-ECC, unbuffered
• Maximum tested capacity: 4 GB (2 x 2 GB)

• Expansion Slots:

• 1 x PCI Express x16 (graphics)
• 1 x PCI Express x1
• 1 x PCI

• Storage Interfaces:

  • 4 x SATA 3.0 Gb/s ports (SATA0–SATA3)

• Power Connectors:

• 24-pin ATX main power connector
• 4-pin 12V CPU power connector

• Internal Headers / Connectors:

• Front panel / front I/O header
• Front USB headers
• Front audio header
• Internal speaker header
• CPU fan header and system fan header

• Rear I/O Ports:

• 1 x VGA
• 1 x Parallel (DB25)
• 2 x Serial (DB9)
• 6 x USB 2.0
• 1 x RJ-45 Gigabit Ethernet
• 3 x Audio jacks (line-in, line-out, microphone)

Interchangeable / Replacement Part Numbers

• 01TKCC, 1TKCC, CN-01TKCC, AZ0423 (printed on PCB as the board family code)

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system’s specific configuration. It’s essential to verify compatibility with your system manufacturer prior to installation.

✔️ OptiPlex 380 Mini Tower
✔️ OptiPlex 380 Desktop

(Not suitable for OptiPlex 380 Small Form Factor systems, which use a different board layout and mounting pattern.)

☑️ Key Features

☑️ Original system board for OptiPlex 380 MT/DT with correct standoffs, headers, and rear-I/O layout
☑️ Intel G41 chipset with LGA 775 support for Core 2 Quad / Core 2 Duo / Pentium Dual-Core / Celeron processors
☑️ 2 x DDR3 DIMM slots for cost-effective, readily available DDR3 memory
☑️ PCIe x16 graphics slot plus PCIe x1 and PCI for legacy expansion cards
☑️ Rich rear I/O including VGA, parallel, dual serial, six USB 2.0, Gigabit LAN and audio
☑️ Ideal drop-in replacement for failed OptiPlex 380 MT/DT motherboards

⚙️ Fit Notes

• Designed specifically for OptiPlex 380 Mini Tower and Desktop chassis; mounting holes, front-panel header, and power connectors are laid out to match these cases.
• I/O shield is typically reused from the original system; this board is usually supplied without an I/O shield unless otherwise noted in the product listing.
• CPU, heatsink/fan, RAM, and other components are not included and must be transferred from your existing system or purchased separately.
• When reinstalling the CPU and cooler, clean off old thermal compound and apply fresh paste such as Shin-Etsu G751 high-performance thermal compound for optimal cooling.