The 2024 forum thread is useful for identifying the JDCIN, RST_SW and PWR_SW areas on an early ZimaBlade board, but its direct-power advice should not be copied blindly onto current hardware. Power specifications and accessories have changed, and the current official setup guide describes USB-C PD 3.1 rather than the old thread’s simple 12V/3A assumption.
The safe rule is simple: switch pins are low-risk only when you know the correct pair; direct DC input is a board-level electrical connection and should be used only with a confirmed pinout and voltage for your exact hardware revision.
What RST_SW and PWR_SW Do
The community explanation says momentarily shorting the RST_SW pair resets a running board, while PWR_SW behaves like a normal PC power switch. That is consistent with standard motherboard switch headers: they are intended for a momentary switch, not for feeding them voltage.
Use a simple momentary switch across the confirmed pair. Do not connect those pins to 12V, 5V or an ATX power rail.
Why the Old JDCIN Voltage Advice Needs a Warning
In 2024, forum users described JDCIN as a 12V input and one user built a cable from an ATX SATA 12V line. The thread also warned that direct DC input bypasses some protection and that damage could be considered user-caused.
Current documentation has moved on. The current ZimaBlade setup states that the Type-C interface supports USB PD 3.1, and current product listings include newer power accessories. That makes the old 12V/3A forum wiring unsuitable as a universal instruction.
Before Using JDCIN
Identify the exact board revision, obtain the current official pinout, verify polarity with documentation rather than a forum photo, and use a regulated supply with appropriate current protection. If that information is unavailable, use the supported USB-C power path instead.
The DIY NAS accessories shows the current accessory ecosystem, while the NAS power planning guide explains why power-adapter wattage and actual device demand are not the same thing.
Bottom Line
RST_SW and PWR_SW can be treated like momentary switch headers once the correct pairs are confirmed. JDCIN is different: it is direct power input. Do not reproduce the 2024 ATX wiring recipe on a current ZimaBlade without an official pinout and voltage specification for that exact board revision.
