American seller
eBay member for over 20 years.

RARE Soyo 5TF2 Socket-7 Baby-AT Motherboard
Intel 430HX (Triton-II) chipset, Intel's most advanced Pentium chipset
Multi-I/O — 1P/2S/FDD/IDE and PS/2 mouse
Updated to latest Award BIOS (v1114)
Manufactured July 1996
sn. 413520
Fully Tested with 30 day warranty against defects

• We purchased Soyo motherboards directly from Soyo for our own PC production during this period.
• This board was removed during a routine upgrade decades ago and has remained unused, packed in protected storage ever since.
• This was one of the most popular and most reliable motherboards we ever sold.
• Fully tested using Ultra-X professional diagnostics (see test results attached).
• Sold without CPU and RAM so you can configure as you wish.
• Supports Pentium processors 75-200MHz, AMD-K4 PR75-PR200 and Cyrix 6x86 PR90-PR166.
  • FSB - 50, 55, 60 and 66MHz
  • Multipliers - 1.5, 2.0, 2.5 and 3.0x
  • Core - 3.3v and 3.52v (this version supports single voltage processors only).
• Supports up to 256MB of 72-pin SIMMs, EDO or FPM, parity or non-parity.
• 256K write-back SDRAM cache with 64MB cacheable range.
• In case you're wondering, the long brown slot is for optional cache expansion to 512K using a 256K Pipelined Burst SRAM COASt module.
• Perpetual Dallas RTC — uses the highly reliable Dallas RTC with embedded lithium battery.
  • This Dallas RTC chip has been modified to accept the easily replaceable modern CR2032 cell.
• (Note: this modified Dallas RTC chip by itself is worth $30)
• Option: A freshly manufactured Dallas RTC chip can be installed if you prefer. It has a guaranteed life of 10 years but the embedded battery is non-replaceable. Chip itself is socketed and easily replaceable. Request this on your order.
• NO CORROSION (Dallas RTC/batteries did not leak so there was no risk of corrosion).
• 4-layer PCB 220mm x 280mm.
• Four 32-bit bus-master PCI slots, plus four 16-bit ISA slots give you the best of both worlds.
• Headers: FDD, 2xIDE, Parallel, 2xSerial, and PS/2 mouse (cables not included).
  
• Printed copy of original manual included.
• Additional manuals, jumper settings, info available here:
  https://theretroweb.com/motherboards/s/soyo-sy-5tf
• Cables not included
  
• 30 day warranty.

You will receive exactly the item you see in the photos.

Shipped via fast USPS Priority Mail with full tracking. Shipped from a USPS SCF (Sectional Center Facility) so delivery anywhere within the U.S. is only a few days away (excluding the occasional USPS misdirect).

Photos are the of the exact item you will receive.

NOTES ON TESTING :
• All low-level core functions tested with Ultra-X professional diagnostic software specifically designed to test these early motherboards.
• Tests included a burn-in loop of more than 10 minutes (see attached report for list of tests performed).
• Memory slots fully populated to test all memory slots.
• Serial and parallel ports tested using internal loop-back function.
• For practical reasons I cannot test every slot, every memory combination, every processor, every header, every port, every configuration, etc.
• Sold with 30 Day Warranty — If the board fails or a defect is found within 30 days of purchase, I will stand behind the product. Please contact me with details and we will resolve the problem or work out an appropriate solution.
• Please contact me if you encounter any issues or have questions.