PowerBook 170-series


We appreciate your technical corrections and comments !

The PowerBook 170 has a single motherboard expansion slot addressed along a 32-bit memory bus. This computer requires standard 100ns pseudostatic RAM modules (PSRAM) in either 2MB, 4MB, or 6MB capacities, as it shipped in a 2MB default configuration with one vacant expansion slot. While the PB170 accepts memory that is compatible with the earlier PB140, PB145, and PB145B, it would be helpful nonetheless to mention the model number in the Comments field of the order form when ordering PSRAM upgrade modules from MacGurus.

With 2MB PSRAM soldered to the logic board, and a 2MB PSRAM expansion card, the PB170 is bootable out of the box. The addition of a single 4MB or 6MB expansion module yields memory configurations of 6MB and 8MB. The maximum amount of usable memory in the PB170 is 8MB, in the form of a single 6MB module in combination with the soldered 2MBs of logic board PSRAM.

The PowerBook 140, 145 and 170 all share a common motherboard architecture with 2MBs of soldered PSRAM and a 2MB PSRAM expansion card. The Motorola 68030 on the PB170 daughtercard runs at 33 MHz, and includes a Motorola 68882 FPU. One peculiarity of the PB140, 145, 145B and 170-series is that they do not support SCSI Disk Mode. All four of these PowerBooks address memory along a 32-bit data path.

Specifications
Logic Board PSRAM		4MB.
Supported Modules		2MB,4MB,6MB.
Number Expansion Slots		One (1).
Supported VRAM		None.
Number VRAM Slots		None.
L2 Cache Supported		None (Non-PowerPC architecture).
Module Type		100ns Pseudo Static RAM (PSRAM) Card.

While some of the products mentioned on this page may no longer be available, the information about these products remains available to those who may need it.

Be sure to mention the model number in the Comments field of the Ordering Form
when ordering upgrade modules from MacGurus.