Editing IBM PS/2 Model 70 (section)

== Chassis and Layout ==

The Model 70 chassis is the same '''low-profile desktop''' as the Model 50:

* '''Width × depth × height''' (chassis): approx 421 × 421 × 144 mm.
* '''Weight''' (without HDD): approx 9.5 kg.
* Two thumbscrews at the rear top corners hold the cover. Cover slides back 10 mm and lifts off.
* '''Three MCA slots''' (all 32-bit) on a vertical riser at the rear.
* '''One 5.25" half-height bay''' at the top (often empty or used for tape backup).
* '''Two 3.5" half-height bays''' below it (one for floppy, one for the ESDI hard drive).
* '''PSU''' on the left-front: 132 W on the Model 70.
* '''Planar''' on the chassis floor, with the 80386DX socket near the front-right.
* '''Power switch''' on the front-right.
* '''Onboard VGA''' (15-pin Mini-D-Sub on the rear bracket of the planar).
* '''PS/2 keyboard and mouse''' (Mini-DIN-6).
* '''Serial port''' (DB-25 male) and '''parallel port''' (DB-25 female).