Page 3
Warning Checklist Reconfiguring Your PPM-20300 mainboard package contains the following: the power the board while NEVER reconfigure One PPM-20300 mainboard One user’s manual the board at any time, you wish to reconfigure tumed before sure that the power make BIOS system setup manual settings such as changing any hardware...
Introduction The PPM-2030C mainboard compatible with PC/AT. This means that the software virtually avail— able PC/AT can also be run on a system build around the PPM—2030C mainboard. The PPM-2030C incorporates the Intel 80386SX which is 32-bit CPU with 16-bit external data bus and a 24-bit...
Page 6
Board~ Lazout Features PPM-20300 includes features: the following layout PPM-2030C Below ShOWing __ 32-bit 803868X.20 microprocessor |nte| and some the connectors. The Jumpers figure on data bus and a CPU with a 16-bit external the dimensions next the board. page gives address bus external...
Dimensions of PPM-20300 Board Setup the dimensions are millimeter(s). this section references be made will jumper settings used the various functions to configure PPM-20300 mainboard. Refer to Board Layout section for locations of all jumpers. Installation W1- W6 are used set the size Jumpers...
Page 8
configuration for total The following figures show Insertion Chip onboard system memory. Remember that when make inserting chips, you must sure the notched dotted end chip lined up the notched end the socket. wrth push the Gently W1 - Description Settings the socket, and into...
Page 9
Total Onboard System Memory Total Onboard System Memory 512KB 640KB Bank 41256 Bank 41256 RAM Module pieces FlAM Module x 2 pieces °IIIIIIIII 1i» __°IIIIIIIII L‘UIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIG'J Bank 4164 Module pieces °IIIIIIIII° IIIIIII lllllll b‘DIIIIIIIIIIIIIIIIIIIIIIIIIIIIIID'J IlIIIIl Bank 41256 (44256 Jumpers - W61 llIllllIHIIIIHI ”III”...
Total Onboard System Memory 1.5MB Total Onboard System Memory Bank 2 41256 Module pieces °IIIIIIIII° 41256 Module pieces Bank 0 oIIIIIIIII L'T-lllllllIIIIIIIIIIIIIIIIIIIIIIIIDJ 41256 Bank (44256 41256 Bank Module pieces oIIIIIIIII?» lllllllllll Lullllllllllllllfillll flu 41256 or Bank (44256 Bank 0 41256 (44256 X 2) Jumpers W1-...
Total Onboard System Memory Onboard Total System Memory 2: “256 Bank M°d“'e News Bank 2 411000 Module pieces HUN» Olllllllllag Lullll|IllllllllllllllllllllllllEI'd Bank 41256 Module pieces °IIIIIIIII Bank 41256 (44256 Bank 41256 (44256 Bank (44256 41256 Jumpers Bank 41256 (44256 Jumpers Total Onboard System Memory Bank 411000...
Total Onboard System Memory Total Onboard System Memory Bank 411000 Module pieces """l" Bank 411000 Module pieces ’»°IIIIIIIII Bank 3 411000 Module Bank 411000 Module pieces pieces °IIIIIIIII °IIIIIIIII° Bank 41256 x (44256 Bank 0 41256 (44256 Jumpers — Jumper1sO (<3...
Installation Connectors chips, referto the illustration below install connections can made variety from PPM- sockets and selection forthe location chip 20300 mainboard to a control panel front the mainboard. W7 on jumper addition you can connect system. your speaker comes installed (which most...
Pinouts Jumper Speaker Jumper used connect a speaker. Jumper J4 When are connected four pins a speaker a closed the speaker functional. Refer to circuit, figure OOOOOO /P.G. Procclk below Lil. pinouts. Pinouts Jumper Data Power (Jumper J2) eylock & 5 VDC Ground enable the use...
Display Adapter Settlngs 803868X Jumper used select the The PPM-20300 uses display adapter. an Intel 803868X—20 Refer to Board Layout section location microprocessor running at 20MHz. The 803868X has W12. the mainboard configure kind of dis- number features that enable a substantial leap adapter set jumper play...
installation Math Coprocessor Dun-nunruimuummnfl 80387SX-20 coprocessor can be installed optional socket accelerate calculation-intensive ap- U42 to plications. used enable disable the 80387SX Jumper coprocessor. sure the notched the 80387SX Make lined up with the notched end the socket. Refer to figures below and on the next...
Choosing a Power Supply Connection to Power Supply The power supply provides "power-good” signal to the PPM-20300 final installing yourself, the power indicate proper operation supply. The attaching the power cable step main- supply TTL-compatible high level for power-good signal board connector J9, which...
Connector Battery Software select an external battery or used Jumper Board battery. Refer to the onboard rechargable PPM-20300 supports shadow and Expanded location W13. Jumper section Layout increas the system (EMS) to System memory Memory batteries instead circular size enables four “AA"...
Page 19
have one megabyte onboard NOTE: for EMS — you only Indicate two parameters page register disable the shadow function base address and start address. memory, you must frame order 384K extended first memory Choose the correct configuration panded memory. desire, then press <F1>...
become confused about the mode operation. Operation switches When using both alternatively, Turbo be the accurate indicator the actual will only mode: Turbo mode and will the PPM-20300 The main 20MHz mini- advantage Normal mode. 803868X mainboard over ordinary PC/AT main- makes Beta boards...
Real Address Mode Technical Information the 3868X microprocessor operates real mode very fast 8086, but with 32-bit extension desired. Microprocessor Real mode required primarily to the proces- mode protected operation. 803868X a high-performancemicroprocessor with external data path, 16-bit up to 16 megabytes unit shifts the selector...
treated The 8254-2 timer/counter system Subsystem four programmable an arrangement programs Three are treated counters; the external subsystem has a 32K by 16-bit ports. arrange- for mode programming. fourth control register two 32K by 8-bit ROM/EPROM ment consisting and even address codes reside modules.
addresses forthe page register are as follows: Access Dlrcet Memory channels are supported the system. Eight Address Page Register channels Two Intel controller chips 8237—5 (four each are used 0087 to provide eight channels. Channel chip) channels are assigned follows: 0083 Channel Channel...