Fujitsu SENDA-16C

Fujitsu SENDA-16C Photo

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I can't remember how I acquired it.

I found a 80287 Coprocessor somewhere, and I plugged it in. The Coprocessor was an "Intel D80287-10, L9501558", and it got really really hot while using the computer. It used to hang, then I decided to plug it out. It isn't good running a 10MHz copro with a 12MHz CPU.

Hardware

Computer
IBM PC-AT, enhanced
CPU
Intel N80286-12, SX005
Coprocessor
None
BUS
AT ISA16
Memory
512Kb
Video
Hercules Graphics, with another Parallel Port, ISA8
Disk Controller
Western Digital (WDC'85) WD11C00C-JU, ISA16

Supports two floppies and two MFM HDs.

Floppy Drives
Hard Disk
Miniscribe 8425 - MFM - 21.4 Mb
Port Controller
Offers two Serial (NS16450N) and a Parallel Port, ISA16
Serial Ports
Address UART Speed Format IRQ
COM1 03F8 16450 2400 8N1 4
COM2 02F8 16450 2400 8N1 3
Parallel Ports
Address IRQ
LPT1 0378
LPT2 0278 7
Keyboard
101 Keys Support, DIN Connector
Power Supply
Manufacturer: Delta ; Model: DPS-145BB ; 230V, 50Hz, 3A ; 145.7W
Voltage Current
INPUT 200-240V AC 2.4A
INPUT 100-120V AC 5.0A
OUTPUT +5V DC 19.0A
OUTPUT -5V DC 0.3A
OUTPUT +12V DC 3.8A
OUTPUT -12V DC 0.3A
CMOS Battery
TL-5242/W, 3.6 V High Energy Lithum Battery

Mainboard configuration

This information is hold inside the computer. A scan of the paper may be of more help. E-mail me if you think you need a scanned copy.

Quick Guide
Jumper Selection SW1 JP1
1 2 3 4 5 6 7 8 H N
RAM SIZE 512K Y Y Y
640K N Y Y
512+512K Y N Y
640+384K N N Y
2M Y Y N
1M+640K N Y N
4M Y N N
3M+640K N N N
EPROM TYPE 27128 Y N N Y
27256 Y N Y N
27512 N Y Y N
DISPLAY TYPE COLOR Y
MONOCHROME N
SYSTEM SPEED HIGH H
NORMAL N

For a succesful interpretation of the Y-N values in SW1: Jumpers 1,4,5,6,7,8 have ON position (Y) to the left, and 2 and 3 to the right

Software

BIOS
BIOS Version 3.01C, 11/15/85, Copyright Award Software Inc.
Operating System
Caldera OpenDOS 7.02
Drives

CMOS configuration

Keys for entering CMOS Configuration: CONTROL-ALT-ESC

Floppy A
4. 1.4M floppy drive
Floppy B
2. 1.2M floppy drive
Hard Disk 1
Type 002
Hard Disk 2
Not Present
Memory < 1 Mb
00512K
Memory > 1 Mb
00000K

FILES

These files can give more detailed information about the computer and its configuration, and also some benchmarking.

Details

The guy who put the 3.5" Floppy Drive in the computer, hadn't a small power connector for it. Then he cut a power cable with big and small connectors, and he simply plugged the cut cables into the computer's big power supply connector. Sometimes these get unplugged, and then the floppy drives don't work.

In its name, Fujitsu SENDA-16C, the C stands for "COMPACT".

This could be a very good computer, but its limitation to 512Kb base memory is a pitty.

Started 04/08/2001 / Updated 2002-03-16 23:18:11.000000000 +0100

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Viric's Web Site / Webmaster: viric / Started 03/08/2001 / Updated mié sep 17 01:30:41 CEST 2003