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IBM 5170  -  Some Expansion Cards



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Serial/Parallel Adapter

Combined serial port (of type RS232) and parallel port on one card.
Up to two of these cards (configured appropriately) may be fitted in the 5170.

Click here to see IBM's technical document for the card.
There is an error in that documentation in regard to the setting of jumper J2 - parallel port address/interrupt.
That error is on document page 20, where "Port 1" has been labelled as "Port 2", and vice-versa.
Accordingly, the first one of these cards in your 5170 should be jumpered per the photo below (Serial port 1 / Parallel port 1).

Serial port 1 corresponds to I/O base address 3F8 and interrupt 4.
Serial port 2 corresponds to I/O base address 2F8 and interrupt 3.

Parallel port 1 corresponds to I/O base address 378 and interrupt 7.
Parallel port 2 corresponds to I/O base address 278 and interrupt 5.


aaa   Click on photo for larger view



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128KB Memory Expansion Option

Provides 128 KB of RAM from address 512 KB to 640 KB, via one bank of 128 KB.

Click here to see the layout of chips in the bank.
RAM chips of type 4164 are used, of an access time rating of 150 ns (or less), and of the type where pin 1 is not used (Not Connected).  4164 examples.

Only one card may be fitted in the 5170.

Optionally supplied in the early model 5170s.

Click here to see IBM's technical document for the card.

As can be seen in the photo, this card has "PARITY MEM.CO. 128 K" printed on it.
The "CO" was no doubt meant to be "CD" (a shortened version of "card").


aaa   Click on photo for larger view



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512KB Memory Expansion Option

Provides 512 KB of extended RAM, via two banks of 256 KB.

Click here to see the layout of the two banks on the card.
RAM chips of type 41128 are used, of an access time rating of 150 ns (or less).  41128 examples.

The starting address of the RAM is controlled by the switches.
The first one of these cards in your 5170 should be configured (via the switches) per the photo below, i.e. a start address of 1 MB.

Up to five of these cards (configured appropriately) may be fitted in the 5170.

Optionally supplied in the early model 5170s.

Click here to see IBM's technical document for the card.

As can be seen in the photo, this card has "PARITY MEM.CD. 512 KB" printed on it.


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128KB/640KB Memory Expansion Option

Provides:
* 128 KB of RAM from address 512 KB to 640 KB, plus
* 512 MB of extended RAM, the starting address of which is controlled by switches 1 to 5.

Optionally supplied in the later model 5170s.

Click here to see IBM's technical document for the card.

IBM's technical document does not give examples of the setting of switches 1 to 5 (starting address of the 512 MB bank).
Click here to see the settings.

In the particular unit pictured below, the bank 1 RAM sockets are not populated, and thus this unit is only providing the 128 KB component of RAM.





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512KB/2MB Memory Expansion Option

Provides up to 2 MB of extended RAM, via four banks of 512 KB.

Optionally supplied in the later model 5170s.

Click here to see IBM's technical document for the card.

IBM's technical document does not give examples of the setting of switches 1 to 5 (starting address of the card).
Click here to see the settings.





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Fixed Disk and Diskette Drive Adapter   (first generation)

Combined controller for hard drives (fixed disks) and floppy drives.

This is the first generation of the controller - supplied in the early model 5170s.

Made for IBM by Western Digital. It is close to, but is not, a Western Digital WD1002-WA2.

Click here to see IBM's technical document for the card.
Click here for cabling information.
Click here for jumper information.


aaa   Click on photo for larger view



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Fixed Disk and Diskette Drive Adapter   (second generation)

Combined controller for hard drives (fixed disks) and floppy drives.

This is the second generation of the controller - supplied in the later model 5170s (and incidentally, the IBM 5162).

Made for IBM by Western Digital.

Click here to see IBM's technical document for the card.
Note that that document covers both the first and second generation controllers (2 sets of circuit diagrams).

Click here for cabling information.
Click here for jumper information.


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Monochrome Display and Printer Adapter (MDA)

This card is designed to connect to IBM's 5151 monitor (MDA).

Connecting this card to a monitor that is not designed to accept MDA video/sync signals may damage the monitor.
The IBM 5153 monitor (CGA) and IBM 5154 monitor (EGA) are in that category (not designed for MDA signals).

The included printer port is hardwired to I/O base address 3BC, and interrupt 7.

Click here to see IBM's technical document for the card.

When this card is newly fitted to a 5170 (as the only video card), two things need to be changed:
  1. Motherboard switch SW1 set to the rear position.
  2. CMOS SETUP modified to reflect the monochrome video card.





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Color/Graphics Monitor Adapter (CGA)

This card is designed to connect to IBM's 5153 monitor (CGA).

Connecting this card to a monitor that is not designed to accept CGA video/sync signals may damage the monitor.
The IBM 5151 monitor (MDA) is in that category (not designed for CGA signals).

The IBM 5154 monitor (EGA) will accept the CGA video/sync signals from this card.

Click here to see IBM's technical document for the card.

When this card is newly fitted to a 5170 (as the only video card), two things need to be changed:
  1. Motherboard switch SW1 set to the front position.
  2. CMOS SETUP modified to reflect the CGA video card.





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Enhanced Graphics Adapter (EGA)

This card is primarily designed to connect to IBM's 5154 monitor (EGA), but if reconfigured via the red switch block, is capable of use with the IBM 5151 monitor (MDA) or the IBM 5153 monitor (CGA).

In the photo below, the optional daughter board (plugs into J5) that provides additional video RAM, is not shown.
Also, the switch positions shown on the red switch block suit an EGA monitor.

During the computer's Power On Self Test (POST), the IBM EGA card will perform its own self test (a crude/basic one). If the card finds a problem with itself, the card will cause the speaker to beep the error pattern of 1 long beep followed by 3 short beeps.

Click here to see IBM's technical document for the card.





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