Recent content by furnacewheat
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Pinout help needed: Repurposing HP P411 Cache Module / Supercap logic?
You’re right to suspect a handshake — it’s not just a voltage issue. The P411 FBWC uses sense/ID pins for battery presence and health, so supplying 5.4–6 V alone won’t enable write cache. The controller actively polls those pins. Easiest route is salvaging a dead FBWC pack and replicating the...- furnacewheat
- Post #3
- Forum: General Electronics Discussion
