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Step straight back into the golden age of Windows 98 SE and late-1990s PC gaming with this legendary SOYO SY-6KB Slot 1 ATX Motherboard. Built around the legendary Intel 440BX chipset—widely celebrated by enthusiasts as the most rock-solid, compatible, and overclock-friendly foundation of the era—this board is the holy grail for a period-accurate DOS and Windows retro battle station. What makes the SY-6KB exceptionally desirable is its ultimate expansion flexibility: sporting 3 dedicated 16-bit ISA slots (essential for authentic Sound Blaster 16, AWE32, or Roland MPU-401 DOS audio compatibility), 4 PCI slots, and a dedicated 1x/2x AGP slot for your 3dfx Voodoo3, Riva TNT2, or GeForce 256. Paired with 4 DIMM slots for high-capacity SDRAM and factory CPU retention arms already installed, this board is ready to anchor your Quake II, Unreal, Half-Life, and Doom machine. Hardware Specifications Model: SOYO SY-6KB (Printed on PCB: SY-6KB) CPU Interface: Intel Slot 1 (supports Intel Pentium II, Pentium III, and Celeron processors; slocket adapter compatible) Chipset: Intel 440BX AGPset (with signature green SOYO heatsink on Northbridge) Expansion Slots: Memory Support: 4x 168-pin SDR SDRAM DIMM slots (supports PC66 / PC100 SDRAM) Form Factor: Standard ATX (powered by standard 20-pin ATX power connector) Storage Interfaces: 2x IDE Channels (Primary / Secondary Ultra DMA) + 1x Floppy Drive Connector (FDC) Rear I/O Panel: Standard PS/2 Keyboard & Mouse ports, 2x USB ports, Parallel (LPT / Printer) port, and Serial COM port Retention Mechanism: Factory Slot 1 CPU bracket / folding retention guides installed
Condition & Testing Functionality: Fully bench-tested and confirmed operational (WORKS). Posts cleanly, detects CPU and SDRAM, navigates BIOS without issue, and boots into DOS / Windows environments. Cosmetics: Exceptionally clean vintage condition. Clean PCB with no corrosion, no blown or bulging electrolytic capacitors, intact green anodized chipset heatsink, and undamaged expansion slot plastics. Retains original factory jumper chart silkscreen and warranty sticker from July 1999.
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