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Compact aluminium power-supply tester with LCD screen and multiple connector sockets

myVolts

myVolts Power Supply Tester ATX BTX ITX TFX LCD 20 24Pin

SKU CH-A07X-HCW8R

Tests ATX, BTX, ITX and TFX power supplies, showing 3.3 V, 5 V and 12 V rails plus PG value on an LCD with audible fault alarm

  • TypeAT
  • LCD shows voltage and PG values for quick diagnostics
  • Audible buzzer alerts when any reading exceeds normal limits
  • Tests ATX, BTX, ITX and TFX power supplies
  • Measures 3.3V, 5V, 12V, -12V and 5VSB rails
  • Works with 20-pin and 24-pin ATX connectors

ATX Power Supply Tester with LCD

This myVolts tester checks ATX, BTX, ITX and TFX power supplies by plugging into the 20 or 24 pin connector. It reads 3.3 V, 5 V, 12 V, -12 V, 5 V standby and the PG signal on its LCD. A buzzer sounds and the value flashes when any rail leaves its normal range. It is built for technicians and builders who need a quick pass-fail verdict on a PSU.

Connector Compatibility Before Use

Verify that the supply under test exposes a standard 20 or 24 pin ATX header and that any auxiliary 4 or 8 pin CPU, 6 pin PCIe, floppy or 4 pin peripheral plugs are accessible. The unit also accepts an external DIE, P6 or P8 connection, though those sockets show status only by LED, not on the LCD. No software or drivers are required; power the tester directly from the PSU.

Continuous Testing Behaviour

During an extended session the LCD keeps each rail voltage and the PG reading visible so drift can be watched in real time. The audible alarm remains active for the whole period a fault persists, preventing a silent failure from going unnoticed. Aluminium-alloy construction helps the tester dissipate its own heat while it monitors the supply under sustained load.

Highlights

  • LCD shows voltage and PG values for quick diagnostics
  • Audible buzzer alerts when any reading exceeds normal limits
  • Tests ATX, BTX, ITX and TFX power supplies
  • Measures 3.3V, 5V, 12V, -12V and 5VSB rails
  • Works with 20-pin and 24-pin ATX connectors

Specifications

TypeAT

Questions about this item

What cables and connectors come with the myVolts power supply tester, and what must I provide separately?

The tester includes a 20/24-pin ATX connector, a 4/8-pin P4 connector, a 6-pin PCI-E connector, a floppy-drive power connector and a standard 4-pin peripheral connector. You only need to supply the power supply you want to test; no extra cables are required.

Which version of the tester should I choose for a modern 24-pin ATX supply versus an older 20-pin unit?

A single unit covers both: the built-in connector accepts 20-pin and 24-pin ATX power supplies, so there is no separate version to select.

When the LCD shows +12 V at 12 V, what does that tell me about the rail under load?

The reading confirms the +12 V rail is within the expected tolerance while the supply is running unloaded; the tester also checks +3.3 V, +5 V, -12 V and +5 VSB, and sounds the buzzer if any voltage drifts outside normal limits.

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