Infrastructure

Miner Power Supplies (PSU)

The brick that feeds the miner: which model goes on which unit, why APW12 and APW17 don't swap, and the two-match rule that stops no-boots.

Match the model, not just the miner

The PSU is the most-swapped part on the floor. A dead brick is a fast fix - IF you grab the right one. The wrong model bolts on and looks fine but won't boot, or drags a hashboard down. Read the printed label before you swap.

PSU	Powers	Output	Notes
Bitmain APW12	S19 generation	12-15 V DC, 200-240 V AC in	Sub-versions differ by the printed label only - match the label
Bitmain APW17	Selected models only; verify the exact OEM compatibility table	12-15 V DC, ~267 A	Keyed DC connector - does NOT interchange with APW12
Whatsminer (integrated)	Built into the miner	Wide-input power module	Diagnose; use an approved matching-PSU service or RMA path

APW12 vs APW17

Same maker does not establish electrical or connector compatibility. Check the exact miner and PSU revision.

APW12 is the S19-generation brick: 12-15 V DC out, 200-240 V AC in. The sub-versions look identical - the ONLY way to tell them apart is the printed label, so match it exactly.
APW17 applicability is model/revision-specific. Do not extend an air S21 PSU to hydro or immersion: the Bitmain table lists APW111721c for S21 Hydro/XP Hydro and APW11I1216-1a for S21 Immersion.
The APW17 uses a different KEYED DC output connector. It physically will not seat on an APW12 miner - do not force it.

Whatsminer: the PSU lives inside

Whatsminer does not ship a separate brick. The power supply is a wide-input module integrated into the miner chassis.

A power fault requires diagnosis of the AC feed, cabling, control and PSU before selecting a repair.
Integration does not require whole-unit RMA. Diagnose the supply, cabling, control and PSU; an authorized technician may replace a supported matching PSU under the OEM procedure, or escalate under site/warranty policy. Liquid models need their own approved service procedure.
Check the exact PSU nameplate and model installation guide for voltage, phase and current requirements; do not inherit an air-model range for a liquid unit.

Swap rules that stop the callback

Input voltage, phase, connector and PSU compatibility are model-specific. Use the exact miner/PSU nameplate and OEM installation specification before selecting a supply or replacement.

Match the EXACT PSU model (APW12 vs APW17, and the right APW12 label sub-version).
Match the SITE VOLTAGE the miner is fed - a brick that boots at 240 V may starve at a lower feed.
Wrong model or under-volted PSU shows up as a no-boot, or as power / hashboard faults once it does light up - not always an obvious 'PSU' error.

A swap must match BOTH the exact PSU model AND the site voltage. Miss either and you get a no-boot or a hashboard fault that looks like something else. Never force the keyed APW17 connector onto an APW12 unit.

Match the model, not just the miner

PSU	Powers	Output	Notes
Bitmain APW12	S19 generation	12-15 V DC, 200-240 V AC in	Sub-versions differ by the printed label only - match the label
Bitmain APW17	Selected models only; verify the exact OEM compatibility table	12-15 V DC, ~267 A	Keyed DC connector - does NOT interchange with APW12
Whatsminer (integrated)	Built into the miner	Wide-input power module	Diagnose; use an approved matching-PSU service or RMA path

APW12 vs APW17

Same maker does not establish electrical or connector compatibility. Check the exact miner and PSU revision.

APW12 is the S19-generation brick: 12-15 V DC out, 200-240 V AC in. The sub-versions look identical - the ONLY way to tell them apart is the printed label, so match it exactly.

APW17 applicability is model/revision-specific. Do not extend an air S21 PSU to hydro or immersion: the Bitmain table lists APW111721c for S21 Hydro/XP Hydro and APW11I1216-1a for S21 Immersion.

The APW17 uses a different KEYED DC output connector. It physically will not seat on an APW12 miner - do not force it.

Whatsminer: the PSU lives inside

Whatsminer does not ship a separate brick. The power supply is a wide-input module integrated into the miner chassis.

A power fault requires diagnosis of the AC feed, cabling, control and PSU before selecting a repair.

Integration does not require whole-unit RMA. Diagnose the supply, cabling, control and PSU; an authorized technician may replace a supported matching PSU under the OEM procedure, or escalate under site/warranty policy. Liquid models need their own approved service procedure.

Check the exact PSU nameplate and model installation guide for voltage, phase and current requirements; do not inherit an air-model range for a liquid unit.

Swap rules that stop the callback

Input voltage, phase, connector and PSU compatibility are model-specific. Use the exact miner/PSU nameplate and OEM installation specification before selecting a supply or replacement.

Match the EXACT PSU model (APW12 vs APW17, and the right APW12 label sub-version).

Match the SITE VOLTAGE the miner is fed - a brick that boots at 240 V may starve at a lower feed.

Wrong model or under-volted PSU shows up as a no-boot, or as power / hashboard faults once it does light up - not always an obvious 'PSU' error.