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Rectangular metal power supply unit with ventilation grille and cable bundle

Logisys Computer Inc.

Logisys Computer Inc. Power Supply for Compaq Presario SR2000 Series

SKU CH-S66N-QHYFM

Replacement power supply for Compaq Presario SR2000 series desktops with 100–240 V input and 3.3 V, 5 V, 12 V outputs

  • Wide input range suits global mains voltages 100-120V or 200-240V
  • Stable multi-rail output powers legacy components +3.3V 28A +5V 36A +12V 16A
  • Direct replacement fits listed Presario SR2000 series models without modification
  • New condition ensures full service life from first installation
  • One-year parts and labour warranty backs the unit

Direct Replacement PSU

This power supply is built as a direct replacement for Compaq Presario SR2000 series desktops. It matches the original form factor and connector layout so the unit fits without modification. The unit is new and carries a one-year parts and labour guarantee from the manufacturer. It supports the full model list from SR2000 through SR2034NX.

100-240V Input with Multi-Rail Output

The supply accepts 100-120V at 10A or 200-240V at 5A across 50/60Hz mains. On the output side it delivers +3.3V at 28A, +5V at 36A and +12V at 16A, with -12V at .8A, -5V at .5A and +5VSB at 2A. This rail distribution covers the original system requirements for typical office workloads.

ATX Connector Set for SR2000 Chassis

The connector bundle mirrors the factory harness used in the SR2000 chassis, including the main ATX power plug and peripheral leads. Mounting holes align with the existing screw positions so the unit secures with the original hardware. No adapter cables or case alterations are required for installation.

Highlights

  • Wide input range suits global mains voltages 100-120V or 200-240V
  • Stable multi-rail output powers legacy components +3.3V 28A +5V 36A +12V 16A
  • Direct replacement fits listed Presario SR2000 series models without modification
  • New condition ensures full service life from first installation
  • One-year parts and labour warranty backs the unit

Specifications

BrandCompaq

Questions about this item

How do I install this power supply in a Compaq Presario SR2000 series desktop, and what step is often missed?

Remove the side panel, unplug the 20-pin or 24-pin ATX connector and the 4-pin CPU power lead from the old unit, unscrew the four rear mounting screws, slide the new supply in, refit the screws, then reconnect both the main motherboard power and the 4-pin CPU power — forgetting the 4-pin CPU plug is the common error.

What maintenance or replacement will this unit need later?

The internal cooling fan is the only moving part; after several years of continuous use its bearings can wear, so plan to clean dust from the intake grill annually and replace the fan if it becomes noisy or stops spinning.

Which output limit appears first when the system runs under sustained load?

The +12 V rail is rated at 16 A, so heavy CPU and graphics demand will hit that ceiling before the +5 V rail at 36 A or the +3.3 V rail at 28 A.

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