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MTech R418W2 486 Motherboard Cyrix Cx486 DX2-66 SiS 496/497 RAM Cache ISA PCI
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MTech R418W2 486 Motherboard Cyrix Cx486 DX2-66 SiS 496/497 RAM Cache ISA PCI
Price: US $199.99
Condition

Used – Pulled from a working setup/system.

Shows normal cosmetic wear consistent with age and previous use. Includes the Cyrix Cx486 DX2-66 processor, installed memory modules and cache memory shown in the photos. Please review all photos carefully for exact configuration, markings and cosmetic condition.

Vintage MTech R418W2 486 Motherboard with Cyrix Cx486 DX2-66 CPU

Vintage 486-era motherboard featuring the SiS 496/497 chipset and an installed Cyrix Cx486 DX2-66 processor.

Board was pulled from a working setup/system and is being sold in the configuration shown.

Features / Components:

  • MTech R418W2 motherboard
  • Cyrix Cx486 DX2-66 processor installed
  • SiS 85C496 chipset
  • SiS 85C497 chipset
  • Award BIOS
  • Multiple installed RAM modules
  • Samsung KMM591000B-8 memory modules
  • Compaq 129041-001 memory modules
  • Additional vintage memory modules as pictured
  • Socketed SRAM cache
  • UM61256FK-15 cache chips
  • ISA expansion slots
  • PCI expansion slots
  • IDE connectors
  • Floppy drive connector
  • AT-style keyboard connector
  • Extensive jumper configuration options
  • Coin-cell CMOS battery
  • Vintage AT form factor
  • Motherboard serial number: 617963
Installed Memory

The board includes 10 memory modules total, consisting of several different module types/brands.

Visible module markings include:

  • Samsung KMM591000B-8
  • Compaq 129041-001
  • Samsung KMM591000-series modules
  • TI TMS44400DJ-70 memory ICs
  • Hitachi HM514400-series memory ICs
  • Korea-marked KM41C1000-series memory ICs



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