Mainboard user’s manual 1 st edition july 1991 ibm pc/a? Are registered trademarks of international business machines corporation. Intel 386sx and 387sx are trademarks of intel corporation. Other brand and product names are trademarks and/or registered of their respective companies..
Table of content chapter 1 l-l 1. Introduction chapter 2 2-1 2. Mainboard configuration 2-1. Connectors and jumpers setting 2-2. Dram banks configuration chapter 3 3. Bios setup 3-1. Setup utilities option 3-2. Standard cmos setup option 3-3. Advanced cmos setup option 3-4. Auto configuration with b...
The mainboard is a high performance, highly integrated main board base on the cpu. It is fully compatible with the ibm pc/at. Features 16, 20 or 25 mhz microprocessor. Socket for coprocessor. Sync or mode for co-processor operation. Four banks memory socket on board. Banks dip, 2 banks simm supports...
Mainboard configuration 2-1. Connectors and jumpers the following is a description of jumpers and connectors of mainboard. Mainboard configuration 2-1.
And power led connector. Q j2 = speaker connector. J3 = reset switch connector. J4 = turbo normal switch connector. = turbo led connector. = external battery connector. Q j16 power connector. = keyboard connector. Cl co-processor operation mode jumper short mode (default) open sync mode l note is fo...
2-2. Dram banks configuration q the mainboard supports and memory devices on the system board in four 16-bit banks, total main memory size can be up to 16mb. The memory configuration are supported as shown in the following table. J7 for simm module ram bank selection: on : select bank 0 bank 1 on : ...
Simm socket selected bank & bank 1 dram configuration: memory size bank 512 kb 256 k mb i 256 k 256 k i 2.5 mb 256 k 4mb i i i i 4m 16 mb i 4 m i 4m simm socket selected bank 2 & bank dram configuration memory size bank 0 bank 1 bank 2 bank 3 512 kb o o o mb 256 k 256 k 0 0 1.5 mb 256 k 256 k 256 k ...
Bios setup setup utilities option bios setup program bios setup utilities (c)1990 american megatrends inc., all rights reserved standard cmos setup advanced cmos setup auto configuration with bios defaults auto configuration with power-on defaults write to cmos and exit do not write to cmos and exit...
3-2. Standard cmos setup option bios setup program standard cmos setup (c) 1990 american megatrends inc., rights reserved date (mm/date/year) thu, jun 1991 base memory 640kb time 14 : 45 : 01 ext. Memory : 0 kb daylight saving disabled cyln head sect size hard disk c: type not installed hard disk d:...
3-3. Advanced cmos setup option bios setup program advanced cmos setup american inc., all rights reserved adaptor shadow disabled adaptor rom shadow disabled adaptor rom shadow disabled adaptor shadow eooo, disabled adaptor shadow disabled shadow option disabled values setup defaults defaults l note...
Bios setup program advanced setup (c) 1990 american megatrends inc., all rights reserved ram wait state esc: exit l ++* (ctrl) pu/pd:modify values setup defaults defaults l note : 1. Above values are default. 2. Advance setup option for 25 mhz mainboard used only. 3-4 bios setup.
3-4. Auto configuration with bios defaults standard cmos setup advanced cmos setup auto configuration with power-on defaults write to cmos and exit do not write to cmos and exit note : load bios setup default values from rom table. 3-5. Auto configuration with power-on defaults standard cmos setup a...
L note write the settings to the cmos and exit. Standard cmos setup advanced cmos setup auto configuration with bios defaults auto configuration with power-on defaults to do not write to cmos and exit 3-7. Do not write to cmos and exit l standard cmos setup advanced cmos setup auto configuration wit...
