265W Power Supply for OptiPlex 390 790 990 3010 MT Precision T1600 T1650 XPS 8500

Replace a failed or unstable desktop power supply with this 265W internal PSU designed for compatible Mini Tower and tower systems. This unit is a direct-fit replacement for a wide range of OptiPlex, Precision, Vostro, Inspiron, XPS, and Studio desktop platforms that use the same 265W power supply form factor, mounting layout, and connector set.

With standard desktop output rails, a 24-pin ATX motherboard connector, 4-pin CPU power connector, and four SATA power connectors, this power supply is a practical replacement for systems experiencing no power, random shutdowns, boot issues, or PSU fan failure. It is commonly used in business desktops, entry workstation systems, and consumer tower platforms built around the same chassis and PSU family.

Technical Specifications

• Max Power: 265W
• AC Input: 100-240V ~ 5A 50-60Hz
• DC Output:
  • +12VA / 17A
  • +12VB / 9A
  • +5V / 13A
  • +3.3V / 10A
  • -12V / 0.5A
  • +5V(FP) / 4A
• Dimensions: 150mm x 86mm x 140mm
• Form Factor: Internal desktop power supply
• Motherboard Connector: (1) 24-Pin ATX
• CPU Power Connector: (1) 12V 4-Pin
• Drive Power Connectors: (4) SATA
• Application: Mini Tower and tower desktop systems using the same 265W PSU platform

Interchangeable / Replacement Part Numbers

GVY79, D3D1C, 9D9T1, 053N4, PJFXN, YC7TR, D265A001L, L265EM-00, D265EM-00, F265EM-00, AC265AM-00, DPS-265EB A, L265AM-00, H265AM-00, D-0265ADU00-101, PS-6271-6DF, PS-6271-01DA

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or chassis manufacturer prior to installation.

✔️ OptiPlex Mini Tower Series: 390 MT, 790 MT, 990 MT, 3010 MT, 7010 MT, 9010 MT
✔️ Precision Tower Series: T1500, T1600, T1650
✔️ Inspiron Mini Tower Series: 530 MT, 531 MT, 535 MT, 537 MT, 545 MT, 546 MT
✔️ Vostro Mini Tower Series: 200 MT, 220 MT, 230 MT, 260 MT, 400 MT, 410 MT, 420 MT, 430 MT, 460 MT
✔️ XPS Tower Series: 8000, 8100, 8500
✔️ Studio Desktop Series: 540, 540s

☑️ Key Features

☑️ 265W replacement desktop power supply for supported Mini Tower and tower systems
☑️ Standard 24-pin ATX motherboard connector for compatible desktop platforms
☑️ 4-pin CPU power connector for supported system boards
☑️ Four SATA power connectors for hard drives, SSDs, and optical drives
☑️ Broad compatibility across OptiPlex, Precision, Inspiron, Vostro, XPS, and Studio systems using the same PSU family
☑️ Ideal replacement for systems with no power, intermittent shutdowns, failed startup, or power supply fan issues
☑️ Compact internal PSU dimensions designed for compatible desktop chassis layouts
☑️ Suitable for business desktops, home towers, and entry workstation systems

⚙️ Fit Notes

• Please match your original power supply part number before ordering.
• Verify the chassis is a Mini Tower or compatible tower form factor using this 265W PSU style.
• Confirm your original unit uses a 24-pin ATX motherboard connector and 4-pin CPU power connector.
• Make sure the mounting screw pattern, PSU dimensions, and rear exhaust layout match your original power supply.
• Some systems within the same family may use different wattages or different PSU housing styles depending on configuration.
• This power supply is intended for systems designed around this 265W platform and is not a universal replacement for all desktop towers.