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Grey metal rectangular power supply unit with single fan visible on one side and multiple cable connectors emerging from the opposite

POINWER

POINWER GVY79 9D9T1 265W power supply for Dell Optiplex 390, 790, 990 Mini Tower

SKU CH-1TZ5-W5XVR

265 W replacement unit fits Dell Optiplex 390, 790 and 990 Mini Tower chassis with one fan and four Sata power connectors

  • Maximum Power260 W
  • Fans1
  • ModularNo
  • 265 W output powers Dell Optiplex 390, 790 and 990 Mini Tower systems
  • Direct replacement for part numbers GVY79, 9D9T1, YC7TR, 053N4 and D3D1C
  • Single 24-pin ATX and 4-pin CPU connectors plus four 4-pin Sata power leads
  • 100-240 V input with 5.0 A rating suits worldwide mains supplies
  • Non-modular design with one fan keeps cabling simple inside the chassis

Replacement power supply for Dell Optiplex MT

The POINWER GVY79 9D9T1 unit delivers 260 W maximum power and matches Dell part numbers F265EM-00, AC265AM-00, L265EM-0, H265AM-00 and L265AM-00. It fits Optiplex 390, 790 and 990 Mini Tower systems only. A single fan provides cooling inside the standard chassis.

Installation notes and common issues

The supply uses fixed cables with one 24-pin ATX connector, one 4-pin ATX connector and four 4-pin Sata power plugs. Alignment is straightforward when the chassis is a genuine Mini Tower. Builders often order this unit for DT, SFF or USFF models by mistake; those form factors have different mounting points and connector layouts.

Pre-order checklist for your system

Confirm the chassis label reads Mini Tower (MT) and not DT, SFF or USFF. Verify that the existing power supply carries one of the listed Dell part numbers or the compatible part numbers YC7TR, 9D9T1, GVY79, 053N4 or D3D1C. Check that your motherboard requires only the 24-pin and single 4-pin ATX power inputs provided.

Points forts

  • 265 W output powers Dell Optiplex 390, 790 and 990 Mini Tower systems
  • Direct replacement for part numbers GVY79, 9D9T1, YC7TR, 053N4 and D3D1C
  • Single 24-pin ATX and 4-pin CPU connectors plus four 4-pin Sata power leads
  • 100-240 V input with 5.0 A rating suits worldwide mains supplies
  • Non-modular design with one fan keeps cabling simple inside the chassis

Caractéristiques

Maximum Power260 W
Fans1
ModularNo

Questions sur cet article

How do I verify the 265 W PSU is delivering power correctly after installing it in my OptiPlex 990 MT?

After fitting the unit, press the front power button; the system should start, the single internal fan should spin, and the Dell BIOS should show all rails within normal limits.

What connectors come attached to the unit and what extra cables, if any, must I source for a Dell OptiPlex 790 MT build?

The supply ships with a fixed 24-pin ATX, one 4-pin ATX12V, and four 4-pin SATA power leads — no modular cables or adapters are included, so nothing extra is needed for a standard MT configuration.

The listing shows several part numbers such as GVY79 and 9D9T1 — which one should I match to my OptiPlex 390 MT?

Match any of the listed numbers — GVY79, 9D9T1, YC7TR, 053N4, D3D1C, F265EM-00, AC265AM-00, L265EM-0, H265AM-00, or L265AM-00 — to the label on your original Mini Tower unit; all refer to the same 265 W MT model.

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