Ultimate Hardware 2019 BETA

ABit AB-AN4R2

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Form factor: Baby AT
Chipset: SiS 85C471/407 (Green PC ISA-VLB 486 Single Chip ) [85C471, 85C407]
Dimensions:330mm x 218mm
Processor platform:486 [5V/3.3V]
Maximum supported RAM: 128 MB
Cache: 128 KB 256 KB 512 KB
Supported RAM types: 72-pin FPM 30-pin SIMM
BIOS images:
Manuf. POST String Note BIOS Ver. Core Ver.
AMI 40-E8FI-001247-00101111-121593-SIS471-H ??? 121593
Award 08/30/95-SIS-85C471E/G-2C4I9A12-02 4.02 4.50G
Manuals:
Expansion slots:
  • 3x 32-bit VLB
  • 6x 16-bit ISA
Supported CPUs: Intel 80486DX Intel 80486DX2 Intel 80486SX AMD Am486DX2 Cyrix Cx486DX Cyrix Cx486DX2
Supported FSB speeds: 20MHz 25MHz 33MHz 40MHz 50MHz 66MHz 75MHz 83MHz 100MHz
Notes:

Only the AN4T R2 supports 486DX4 CPUs, this version does not!