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==View or Print jumper settings using Fixedsys or New Courier fonts== --------FOREX 486 (Rev VL3M)-------------------------------------------- General specification - AMI BIOS ID string 40-P301-001437-072594-DGREEN-H Two-third of the baby AT size board (220mm x 260mm) Supports Intel 486(and 487)SX/20/25/33, 486DX/25/33/40/50, 486DX2/50/66 and P24T CPUs Uses Forex486 -FR46C521A Chipset Supports up to 32 Meg RAM (4 x 30 pin and 2 x 72 pin slots) Supports 256k, 1M, 4M, 8M, 16M and 32M SIMMs Supports Shadow RAM for system, adaptor and video BIOS Three VESA local bus atandard slots Four 16 bit AT bus slots Standard reset, keylock, speaker and turbo LED connectors AMI BIOS - Manufactured by: FOREX Computer Group Jumper settings CPU Selection (JP8, JP9, JP10, JP11 and JP12) JP8 Open CX486DX Closed CX486DX2 JP9 1-2 P24T 2-3 486 JP10 1-2 486DX/DX2/487SX/P23T/P24T PGA 2-3 486SX PGA JP11 1-2 486SX PGA 2-3 486DX/DX2/487SX/P23T/P24T PGA JP12 1-2 486SX/487SX/P23T PGA 2-3 486DX/DX2/P24T PGA CMOS JP21 close to clear CMOS Board Clock (JP3, JP4 and JP5) JP3 JP4 JP5 Clock OFF ON ON 20MHz ON OFF ON 25MHz ON ON OFF 33MHz OFF OFF ON 40MHz OFF ON OFF 50MHz Cache memory (JP6, JP7, JP13 and JP14) Size JP6 JP7 JP13 JP14 Bank0 Bank1 Tag 64k Open Open 2-3 2-3 8k 8k 8k 128k 2-3 1-2 1-2 2-3 32k x 8k 256k 2-3 2-3 1-2 2-3 32k 32k 16/32k 256k 2-3 1-2 1-2 2-3 64k x 16/32k Local bus high speed wait selection JP1 1-2 0ws (<=33MHz) 2-3 1ws (>33MHz) Local bus high speed clock selection JP2 1-2 <=33MHz 2-3 >33MHz JP25 JP25 Open ASYNC Closed SYNC --------End of FOREX 486 (Rev VL3M)------------------------------------- |