[ POWER CONVERSION // IDENTIFIED MODEL ]
HPE 800 W Flex Slot Platinum PSU (720620-B21)
HPE 800 W Flex Slot Platinum hot-plug PSU, option 720620-B21. This entry covers the specific model or bounded historical system assembly identified here; suffixes and supplier revisions are not presumed equivalent.
HIGH-VOLTAGE SAFETY: Disconnect mains before external inspection. Never open a PSU. Internal capacitors can retain dangerous charge after disconnection. Do not probe or repair its interior; use qualified service or replace it.
Model-specific ratings & fit
| Manufacturer identity | HPE 800 W Flex Slot Platinum hot-plug PSU, option 720620-B21 |
|---|---|
| Form factor / generation | Flex Slot server PSU, 800 W Platinum |
| AC input | 100–240 V AC; input current and derating require matching HPE QuickSpecs and product label. |
| DC output | 800 W max output class; DC bus/standby values depend on specific revision/host table; use nameplate. |
| Dimensions / mounting | HPE Flex Slot server module; system bay, airflow and firmware support are platform-specific. |
| Connectors | IEC input and proprietary Flex Slot output edge; no desktop harness. |
| Revision distinctions | 720620-B21 is a 800 W Platinum Flex Slot option, distinct from 865414-B21 800 W option despite matching power and family. |
Compatibility & safe handling
- Verify full model, suffix, region and revision using the actual unit nameplate and matching manufacturer manual. Wattage and plug shape alone do not establish compatibility.
- Check AC input range, rail and combined output limits, derating, signaling/pinout, cooling direction, mounting and system qualification before installation.
- PSU modular-side cables are model-specific. Never reuse an unapproved lead; a matching plug can carry a different pinout.
- Server hot-plug is permitted only in qualified host configurations and under the host’s documented redundancy/live-service procedure.
- Never open or internally probe the supply. Retire damaged, wet, burnt, corroded, modified or unidentified units.
Revision & archival notes
720620-B21 is a 800 W Platinum Flex Slot option, distinct from 865414-B21 800 W option despite matching power and family.
Match HPE option and spare numbers and server model. Similar capacity and Flex Slot interface do not imply common system qualification.
Photograph the full nameplate, model/FRU, supplier, revision/date code, line selector, cable ends, mounting orientation and source-document issue. Keep observed label data separate from test results.
Manufacturer or primary references
- HPE 800 W Flex Slot Platinum PSU (720620-B21) — manufacturer/product or primary technical referenceHPE 800 W Flex Slot Platinum hot-plug PSU, option 720620-B21. Check the exact revision, region and system support information. Original page is gone; this is the Internet Archive’s copy.
- Intel ATX / ATX12V Power Supply Design GuideReference for desktop ATX context only. Proprietary historical and hot-swap server outputs are not made interchangeable by ATX standards.
The specific PSU nameplate and corresponding model/service documentation remain controlling.