==View or Print jumper settings using Fixedsys or New Courier fonts== UM4980 V1.1 486 VESA Motherboard - BIOS ID string UM4980 v1.1 01/12/94--2C4X6H01-00 - the optional 41 page ver:1.1 PDF manual is available as a 1.1meg archive. - the optional 46 page ver:2.1 GIF manual is available as a 2.1meg archive. In securing these manuals certain expenses were paid and in an effort to recover these fees its only available by donation. - 4-72 pin SIMM slots (1-64meg FPM DRAM) - 3-32bit VESA Local Bus slots - 7-16bit ISA slots - 1-8bit XT slot - 128k-1024k CACHE support in 8-32pin sockets + 1 TAG RAM socket - PHOENIX Bios Ver:4.03 Auto-Detect Flash Bios with Energy Mgmt. - Supports LBA Mode Control + Large Disk DOS Compatibility. - Green PC Connector - external 3.6v battery not included - UMC UM8498F chipset - Supports 3.3v/3.45v/5volt CPU's and clock speeds 2x/3x. - One 237 ZIF CPU socket 3 which supports these processors: INTEL 80486SX/SX2,80486DX/DX2/DX4,P24D CYRIX CX486S(M6),CX486DX/DX2(M7) AMD AM486DX/DX2,AM486DXL/DXL2 UMC GREEN CPU U5S-SUPER - Supports speeds of 25/33/40/50/66/75/100(internal)MHz. - Manufactured by: ELITEGROUP COMPUTER SYSTEMS - WEBSITE http://www.ecsusa.com =========================================================================== External Battery J2 Reset Switch J30 Green PC connector J27 Turbo Switch J31 Speaker J29 Turbo LED J28 Power LED + keylock J32 32bit VESA slots SL1-SL3 ======================================================================= Battery J2 ---------------------------- Rechargeable 2-3 Clear CMOS 3-4 (short for 3-4secs only with power off) External installed (pin1 VDD 3.6volt lithium, pin4 ground) (battery pack available at most stores) ======================================================================= BIOS Select JP1 ---------------------------- EPROM open 5v Flash 1-2 12v Flash 2-3 Keyboard Select JP3 ---------------------------- external open internal closed ======================================================================= VESA Bus Wait State JP26 ----------------------------- 0 W/S 25MHZ OPEN 1 W/S 33MHZ CLOSED ----------------------------------------------------------------------- DRAM CONFIGURATION ----------------------------------------------------------------------- Size Bank 0 Bank 1 Bank 2 Bank 3 ----------------------------------------------------------------------- 1MB (1) 256Kx36 NONE NONE NONE 2MB (1) 256Kx36 (1) 256Kx36 NONE NONE 2MB NONE NONE NONE (1) 512Kx36 3MB (1) 256Kx36 (1) 256Kx36 (1) 256Kx36 NONE 4MB (1) 256Kx36 (1) 256Kx36 (1) 256Kx36 (1) 256Kx36 4MB NONE NONE (1) 512Kx36 (1) 512Kx36 4MB (1) 1Mx36 NONE NONE NONE 5MB (1) 1Mx36 (1) 256Kx36 NONE NONE 6MB (1) 1Mx36 (1) 256Kx36 (1) 256Kx36 NONE 7MB (1) 1Mx36 (1) 256Kx36 (1) 256Kx36 (1) 256Kx36 8MB (1) 1Mx36 (1) 1Mx36 NONE NONE 8MB NONE NONE NONE (1) 2Mx36 9MB (1) 1Mx36 (1) 1Mx36 (1) 256Kx36 NONE 1OMB (1) 1Mx36 (1) 1Mx36 (1) 256Kx36 (1) 256Kx36 12MB (1) 1Mx36 (1) 1Mx36 (1) 1Mx36 NONE 13MB (1) 1Mx36 (1) 1Mx36 (1) 1Mx36 (1) 256Kx36 16MB (1) 1Mx36 (1) 1Mx36 (1) 1Mx36 (1) 1Mx36 16MB NONE NONE (1) 2Mx36 (1) 2Mx36 16MB (1) 4Mx36 NONE NONE NONE 17MB (1) 4Mx36 (1) 256Kx36 NONE NONE 18MB (1) 4Mx36 (1) 256Kx36 (1) 256Kx36 NONE 19MB (1) 4Mx36 (1) 256Kx36 (1) 256Kx36 (1) 256Kx36 20MB (1) 4Mx36 (1) 1Mx36 NONE NONE 21MB (1) 4Mx36 (1) 1Mx36 (1) 256Kx36 NONE 22MB (1) 4Mx36 (1) 1Mx36 (1) 256Kx36 (1) 256Kx36 24MB (1) 4Mx36 (1) 1Mx36 (1) 1Mx36 NONE 25MB (1) 4Mx36 (1) 1Mx36 (1) 1Mx36 (1) 256Kx36 28MB (1) 4Mx36 (1) 1Mx36 (1) 1Mx36 (1) 1Mx36 32MB (1) 4Mx36 (1) 4Mx36 NONE NONE 33MB (1) 4Mx36 (1) 4Mx36 (1) 256Kx36 NONE 34MB (1) 4Mx36 (1) 4Mx36 (1) 256Kx36 (1) 256Kx36 36MB (1) 4Mx36 (1) 4Mx36 (1) 1Mx36 NONE 37MB (1) 4Mx36 (1) 4Mx36 (1) 1Mx36 (1) 256Kx36 40MB (1) 4Mx36 (1) 4Mx36 (1) 1Mx36 (1) 1Mx36 48MB (1) 4Mx36 (1) 4Mx36 (1) 4Mx36 NONE 49MB (1) 4Mx36 (1) 4Mx36 (1) 4Mx36 (1) 256Kx36 52MB (1) 4Mx36 (1) 4Mx36 (1) 4Mx36 (1) 1Mx36 64MB (1) 4Mx36 (1) 4Mx36 (1) 4Mx36 (1) 4Mx36 This board only supports double density simms (8meg) in Banks 2 + 3. An 8meg 72 pin FPM simm module is defined as: (1) 2Mx36 ======================================================================= CPU Selector JP14 JP15 JP16 JP17 JP18 JP19 ------------------------------------------------------------------------- 80486SX/SX2 open 2-3 open open 2-3 open 80486DX/DX2 open 1-2,3-4 1-2 open 2-3 open 80486DX2 (WB) 1-2,3-4 1-2,3-4 1-2 3-4,5-6 1-2,4-5 1-2,4-5 80486DX4 1-2,3-4 1-2,3-4 1-2 5-6 1-2 1-2 AM486DXL open 1-2,3-4 1-2,3-4 1-2 2-3 2-3 AM486DX open 1-2,3-4 1-2 open 2-3 open AM486DXL2 open 1-2,3-4 1-2,3-4 1-2 2-3 2-3 AM486DX2 open 1-2,3-4 1-2 open 2-3 open CX486S 2-3,4-5 2-3 open 2-3,4-5 1-2,3-4,5-6 1-2,3-4,5-6 CX486DX/DX2 2-3 1-2,3-4 1-2 2-3,4-5 1-2,3-4,5-6 1-2,3-4 SL80486SX/SX2 1-2,3-4 2-3 open 5-6 1-2 1-2 SL80486DX/DX2 1-2,3-4 1-2,3-4 1-2 5-6 1-2 1-2 UMC U5S open 2-3 3-4 1-2 2-3 2-3 ======================================================================= CPU Speed JP7 JP8 JP9 JP25 (Bus Speed) ----------------------------------------------------- 25MHZ closed open open open 33MHZ closed closed closed open 40MHZ closed closed open closed 50iMHZ closed open open closed 50MHZ open open closed closed 66iMHZ closed closed closed closed 75iMHZ closed open open closed 100iMHZ closed closed closed closed ======================================================================= 80486DX4 CPU Speed JP24 ----------------------------- 2x 2-3 3x open ======================================================================= CPU Voltage JP20 JP21 JP22 ------------------------------------- 3.3V 2-3 2-3 2-3 3.45V 2-3 2-3 1-2 5V 1-2 1-2 open ======================================================================= Cache Bank 0 Bank 1 TAG --------------------------------------------------------- 128K 4 - 32kx8 none 1 - 8kx8 256K 4 - 64kx8 none 1 - 32kx8 256K 4 - 32kx8 4 - 32kx8 1 - 32kx8 512K 4 - 64kx8 4 - 64kx8 1 - 32kx8 512K 4 - 128kx8 none 1 - 32kx8 1024K 4 - 128kx8 4 - 128kx8 1 - 64kx8 Cache JP4 JP5 JP6 JP10 JP11 JP12 JP13 ------------------------------------------------------------- 128K 1-2 1-2 open open open open open 256K 1-2 1-2 1-2 open open open closed 256K 2-3 2-3 open open open open closed 512K 2-3 2-3 2-3 open closed open closed 512K 1-2 2-3 2-3 1-2 closed open closed 1024K 2-3 2-3 2-3 2-3 closed closed closed ======================================================================= |