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Compact aluminium power-supply tester with 20/24-pin ATX and SATA connectors, LCD screen and buzzer

myVolts

myVolts Power Supply Tester 20/24Pin ATX SATA

SKU CH-JZ2W-F7P67

Tests 20-pin and 24-pin ATX units plus SATA, P4 and PCI-E connectors with LCD voltage read-out and audible fault alarm

  • TypeAT
  • Tests ATX supplies up to 24-pin connectors
  • LCD shows 3.3 V, 5 V, 12 V rails and PG value
  • Buzzer alarms when any voltage leaves normal range
  • Checks SATA, PCI-E 6-pin and floppy power outputs
  • Aluminium-alloy body fits 20-pin and 24-pin ATX plugs

ATX Power Supply Tester

This tester checks ATX power supplies with 20-pin or 24-pin connectors and also supports SATA power connections. It is designed for technicians and builders who need to verify PSU output before installing it in a system. The unit measures key voltage rails including 3.3V, 5V, and 12V lines. A built-in LCD shows readings for each rail along with the Power Good signal.

Simple Connection With Audible Alerts

Installation only requires plugging the PSU cables into the matching sockets on the tester, including the mandatory 4-pin auxiliary connector. The LCD displays voltages and PG value while a buzzer sounds if any reading falls outside normal limits. External connectors such as SATA, PCI-E 6-pin, and floppy use LED indicators rather than LCD voltage readouts. Forgetting the 4-pin plug triggers an alarm and an LL code on the display.

Tests 3.3V 5V 12V Rails With PG Monitoring

The decisive specification is the ability to measure +3.3V, +5V, +12V, -12V, +5VSB and the PG signal simultaneously on the LCD. This confirms whether the power supply delivers stable output across all primary rails before it powers expensive components. Buyers who need to test server-grade EPS12V 8-pin connectors without an adapter or who require automated logging should look elsewhere.

Puntos fuertes

  • Tests ATX supplies up to 24-pin connectors
  • LCD shows 3.3 V, 5 V, 12 V rails and PG value
  • Buzzer alarms when any voltage leaves normal range
  • Checks SATA, PCI-E 6-pin and floppy power outputs
  • Aluminium-alloy body fits 20-pin and 24-pin ATX plugs

Especificaciones

TypeAT

Preguntas sobre este artículo

How can I confirm the tester is correctly reading the 3.3V, 5V and 12V rails after I connect the 20/24-pin ATX plug?

Power on the supply; if all LCD voltage values remain steady without flashing and you hear only the two initial beeps, the rails are within normal range.

What connectors come on the unit itself and which cables must I supply separately?

The tester provides fixed 20/24-pin ATX, 4-pin, 6-pin and 8-pin PCIe, SATA, floppy and 4-pin peripheral sockets; you only need the power supply's own cables.

Should I choose a model with or without the LCD voltage readout for quicker fault finding?

This version includes the LCD that shows each voltage and PG value, so you can see exact readings instead of relying on LEDs alone.

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