[ POWER CONVERSION // IDENTIFIED MODEL ]
IBM 5170 PC/AT 192 W power supply
IBM Personal Computer AT model 5170 OEM PSU, 192 W class. This record is bounded to the named unit, standard revision, or model family below; nearby model names and replacement parts are not presumed equivalent.
HIGH-VOLTAGE SAFETY: Unplug before external inspection. Never open a power supply. Dangerous voltage can remain inside after it is disconnected. Do not attempt internal repair; use qualified service or replace the unit.
Verified identity & specifications
| Catalog identity | IBM Personal Computer AT model 5170 OEM PSU, 192 W class |
|---|---|
| Form factor / era | IBM AT / early AT-format PSU |
| AC input | IBM 5170 technical reference: mains input is region/nameplate dependent; check selector and label before connection. |
| DC output rating | 192 W class; DC-rail limits are printed on the exact supply label and depend on OEM/assembly. 5170 service documentation is the authority for system load and harness. |
| Mechanical envelope | 5170 chassis-specific rectangular PSU; verify its screw pattern, body depth, and fan/airflow orientation before substitute fitting. |
| Connectors / interface | AT P8/P9 motherboard harness with separate keyed plugs; connector-shell resemblance is not enough—confirm rail/ground arrangement and insertion order. |
| Revision differences | IBM used multiple supplier/assembly variants over the 5170 production period; later 5170 revisions and replacement units can differ. Record the PSU assembly and label, not only the chassis model. |
Compatibility & safe handling
- Match full model, suffix, region, revision and DC output label to the official documentation. Rated total watts alone do not establish rail or transient compatibility.
- Before replacement, confirm AC input range, rail current/combined limits, motherboard signaling and pinout, mechanical envelope, fasteners, cooling direction, and every required connector.
- Never open the PSU, defeat protective earth, or probe its internals. Do not energize a wet, cracked, corroded, burned, modified, or unidentified supply.
- Modular cable pinouts are not standardized at the PSU end. Use only cables expressly approved for this exact model/revision; matching plugs can have different wiring.
Model and revision notes
IBM used multiple supplier/assembly variants over the 5170 production period; later 5170 revisions and replacement units can differ. Record the PSU assembly and label, not only the chassis model.
IBM PC AT model 5170 technical-reference scan; consult the hardware options and power-supply sections.
Archival notes
Preserve type/model and PSU assembly label as separate identities. Document any 110/220 V selector position and do not energize an unidentified or damaged vintage supply.
Photograph the complete nameplate, assembly/model code, revision/date code, input selector if present, cable ends and mounting side. Separate observed label data from published specifications and preserve the referenced manual issue.
Manufacturer / standards references
- IBM PC AT model 5170 technical-reference scanIBM PC AT model 5170 technical-reference scan; consult the hardware options and power-supply sections.
- Intel — ATX / ATX12V Power Supply Design GuideStandards reference for the ATX electrical/mechanical family; use the revision specified for the product. Historical IBM supplies are not ATX and must not be adapted on this basis.
The exact nameplate and corresponding manufacturer manual remain controlling for regional and hardware revisions.