IBM PS/2 Model 70 T3-4 chipset
Logs See all boards with this chipset See all BIOSes for this chipset
chipChipset parts
(multiple brand) 8042 (Keyboard Controller) IBM 57X4111 IBM 63F7520(ESD) IBM 72X8299 (I/O controller) VLSI VL82C114 (Combination I/O)
dateRelease date
1988-06-02
drv No drivers available
doc No chipset documents available
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Release date
File
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Chip
Release date
1995-11-30
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Chip
Release date
1995-11-22
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Chip
Release date
1994-07
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notes Notes

Overview

This is partially a return to the model 70 type 1 chipset. The 90X8134 DMA has been replaced with a 63F7520(ESD). Speculation: this new chip performs the same function as the old chip.

This chipset can work with either a 486 or a 386DX with a 385 Cache Controller. A daughter-board plugs into the motherboard, with one of these options. Type 3 is 386, Type 4 is 486. It operates at 25MHz.

This chipset includes two Intel 8259-2 (Programmable Interrupt Controllers).

Last updated 2019-04-30T00:00:00Z
image1 Image 1 of 2 (Helen_Croft)
image2 Image 2 of 2 (Motherboard Continuum)

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