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Rectangular metal power supply unit with cooling fan and multiple cable connectors

Vszerda

Vszerda L280P-01 280W power adapter for Dell Optiplex GX520 GX620 740 745 755

SKU CH-B3VD-EPSQT

A 280W desktop power supply with 24-pin motherboard, dual SATA, Molex, floppy and 4-pin ATX connectors for compatible Dell Optiplex and Dimension systems

  • Delivers 280W for compatible Dell desktops
  • Accepts 100-120V or 200-240V AC input
  • Includes 24-pin motherboard, 2 SATA, Molex, floppy and 4-pin ATX connectors
  • Replaces L280P-00, H280P-00, H280P-01, D280P-00 and other part numbers
  • Fits Optiplex GX520, GX620, 740, 745, 755 and Dimension C521, 3100

280W replacement for Dell Optiplex and Dimension

The Vszerda L280P-01 is a 280W desktop power supply built to replace the original unit in Optiplex GX520, GX620, 740, 745, 755, 210L, 320 and 330 systems as well as Dimension C521 and 3100 models. It matches the listed part numbers including MH596, RT490 and NH429. The unit is new and ready for installation.

Thermals noise and power draw

The adapter accepts 100-120V at 6A or 200-240V at 3A across 50-60Hz mains and delivers up to 280W maximum output. No fan speed curves or acoustic figures are provided in the data. The supply converts AC input to the DC rails required by the supported motherboards and drive configurations.

Connectors and build fit

The unit provides one 24-pin motherboard connector, one 4-pin ATX connector, two SATA power connectors, one 4-pin Molex connector and one floppy power connector. This covers the main board, processor auxiliary power, SATA drives, legacy IDE or peripheral devices and a floppy drive if present. No modular cables or additional adapters are included.

Highlights

  • Delivers 280W for compatible Dell desktops
  • Accepts 100-120V or 200-240V AC input
  • Includes 24-pin motherboard, 2 SATA, Molex, floppy and 4-pin ATX connectors
  • Replaces L280P-00, H280P-00, H280P-01, D280P-00 and other part numbers
  • Fits Optiplex GX520, GX620, 740, 745, 755 and Dimension C521, 3100

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the L280P-01 in an OptiPlex GX520 and which connector is most often missed?

Remove the old unit, fit the L280P-01, connect the 24-pin motherboard plug, the 4-pin ATX plug, two SATA plugs, one 4-pin Molex and the floppy plug; the 4-pin ATX connector near the CPU socket is the one most often forgotten.

What maintenance or replacement will the L280P-01 need after extended use?

The internal cooling fan will eventually wear out and the electrolytic capacitors can degrade; plan to replace the whole power supply when voltages drift or the fan becomes noisy.

What limit appears first when the L280P-01 runs at full load for long periods?

The 280 W maximum output rating is the first ceiling; sustained draw above that level triggers protection shutdown or voltage droop on the 24-pin and 4-pin ATX rails.

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