Description
Intel 681234-509 Dual Slot 1 Processor Server Motherboard System Board ATX
The Intel 681234-509 is a dual Slot 1 server and workstation system board designed to support two Intel Slot 1 processors — either Pentium II or Pentium III — for symmetric multiprocessing (SMP) configurations. It provides multiple PCI and ISA expansion slots along with integrated rear-panel I/O, making it a capable foundation for late-1990s server and high-end workstation builds.
Specifications & What's Included
- Manufacturer Part Number: 681234-509
- CPU Socket: Dual Slot 1 (SC242) — supports two Intel Pentium II or Pentium III processors
- Processor slots labeled "Primary Processor" and "Secondary Processor" on PCB silkscreen
- Form Factor: ATX / Extended ATX server board
- Expansion Slots: Multiple PCI slots + ISA slots visible on board
- Memory: Multiple DIMM sockets (SDRAM / ECC SDRAM)
- Rear I/O: Parallel (DB25) port, DB9 serial port, PS/2 connectors
- Board only — no processors, RAM, or accessories included
Applications
The Intel 681234-509 dates from the late 1990s era of Intel's Slot 1 platform, which used a cartridge-style CPU connector to house Pentium II and Pentium III processors along with their L2 cache. Dual Slot 1 boards like this one were used in entry-level to mid-range server builds and high-end engineering workstations where SMP support mattered — running compute-intensive tasks, CAD, scientific applications, and multi-threaded server workloads under Windows NT 4.0, Windows 2000, or Linux. Today these boards are sought by collectors and hobbyists restoring late-1990s server hardware, as well as by those maintaining legacy systems that originally ran on this platform. The Slot 1 form factor was Intel's bridge between the earlier Socket 7 era and the later Socket 370 transition.
This Intel 681234-509 Dual Slot 1 Server Motherboard has been tested at our facility and is in good working condition. The board is clean overall with the light surface dust and minor handling marks typical of pulled server hardware. Both Slot 1 CPU connectors, DIMM slots, PCI slots, ISA slots, and rear I/O ports are all present and appear intact. No bent pins, cracked traces, or damaged capacitors were observed. Please review our photos for a detailed look at the board's condition, and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Intel |
Model: |
681234-509 |
MPN: |
681234-509 |
Type: |
Server / Workstation Motherboard |
SKU: |
20087 |
CPU Socket Type: |
Slot 1 (SC242) |
Number of CPU Sockets: |
2 (Dual Slot 1) |
Compatible Processors: |
Intel Pentium II, Pentium III (Slot 1) |
Form Factor: |
ATX / Extended ATX |
Expansion Slots: |
Multiple PCI + ISA slots |
Memory Type: |
DIMM (SDRAM / ECC) |
Memory Slots: |
Multiple DIMM slots |
Integrated Ports: |
Parallel, Serial (DB9), PS/2 (rear I/O panel) |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Board only — no processors, RAM, or accessories included. |
Condition Notes: |
This Intel 681234-509 Dual Slot 1 Server Motherboard has been tested at our facility and is in good working condition. Light dust and minor handling marks typical of used server hardware. All slots and ports intact. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |