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Does the above motherboard use an old style ATX power supply or the newer ATX 12v supply with separate 12 volt plug for the processor? I have to bring a replacement to my daughter in Chicago next week.

Thanks.

Sid

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Following ’s question and ’s reply, a short, practical checklist and a few site checks will make the trip easier. Bring one PSU that covers both legacy and newer connector styles so there’s no guessing when you arrive.

Bring:

  • A modern ATX PSU with the main 20/24‑pin connector plus the separate 4‑pin CPU power (often labeled ATX12V or P4); a 300W+ unit is a safe minimum.
  • A short screwdriver, an anti‑static wrist strap or mat, spare Molex/SATA leads and a power cord.
  • A small multimeter (optional) and a second known‑good PSU if available.

On arrival, do these quick checks before powering up:

  • Visually inspect the board around the CPU socket for a small square 2x2 header labeled ATX12V or P4. If that header exists, the PSU’s 4‑pin must be connected. If it’s absent the board will use only the main ATX connector.
  • With minimal components installed (CPU, one stick RAM, video if not onboard), connect power and front‑panel leads, then attempt to power on. Minimal boot reduces risk and makes fault isolation easier.

If it won’t POST:

  • Recheck both the main connector and any CPU 4‑pin are fully seated.
  • Swap in the spare PSU rather than trying adapter hacks; Molex‑to‑CPU adapters exist but can overload wiring and are not ideal.
  • Look for obvious failures (bulging/leaking caps, scorch marks). If unsure, don’t power repeatedly — diagnostic swaps with a known good PSU are safest.

These steps avoid surprises and let a single, modern ATX supply cover most cases when replacing a PSU for an older K7N2 system.

Member Avatar for caperjack

Does the above motherboard use an old style ATX power supply or the newer ATX 12v supply with separate 12 volt plug for the processor? I have to bring a replacement to my daughter in Chicago next week.

Thanks.

Sid

Hello, it takes the newer style one

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