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Rectangular metal server PSU, matte grey finish, rear fan grille and IEC socket visible

WMtec

WMtec 250W server power supply for OptiPlex 390 790 990 3010 7010 9010 DT

SKU CH-MX07-SW75Q

Replacement 250W desktop PSU compatible with OptiPlex 390, 790, 990, 3010, 7010 and 9010 DT systems

  • Delivers 250 W to keep your desktop running reliably
  • Accepts 100-240 V input for worldwide mains compatibility
  • Fits OptiPlex 390 790 990 3010 7010 9010 DT models directly
  • Matches original part numbers HY6D2 7GC81 D250AD-00 HD250AD-00
  • Operates at 50-60 Hz for stable power conversion

250 W desktop PSU for OptiPlex DT

This 250 watt unit replaces the original power supply in Dell OptiPlex 390, 790, 990, 3010, 7010 and 9010 desktop tower models. It accepts 100 to 240 volt input at 4.4 amps and 50 to 60 hertz, matching the factory electrical specification. The part numbers HY6D2, 7GC81, D250AD-00 and H250AD-00 confirm direct compatibility.

For owners of listed OptiPlex towers only

Builders repairing or upgrading one of the six named desktop systems can install this supply without adapter cables or bracket changes. Anyone with a small-form-factor, micro-tower or all-in-one OptiPlex chassis cannot use this unit because the physical dimensions and connector layout differ. Systems outside the Dell OptiPlex 390 through 9010 DT range are also unsupported.

Fits standard DT chassis

The supply mounts in the standard ATX power-supply bay of the desktop tower case and connects to the motherboard with the existing 24-pin and CPU power leads. No extra cables or modular harnesses are required, leaving the interior wiring unchanged. The 250 watt rating supports the processor, memory and integrated graphics configurations shipped with these models.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $79.99
Cheaper than about 77% of the 3,798 comparable items (median $131.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does this 250W PSU fit a standard OptiPlex 390 DT chassis?

Yes, it is listed for OptiPlex 390 790 990 3010 7010 9010 DT desktops and matches part numbers HY6D2 7GC81 D250AD-00 H250AD-00.

Will the 4.4A input work alongside older 100-240V components in the same system?

The unit accepts 100-240V 4.4A 50-60Hz input, matching the voltage range of the listed OptiPlex models.

How can I confirm the PSU is running correctly after installation?

The system should power on and stay stable under load; the fan should spin and no error beeps should occur on the compatible OptiPlex DT models.

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