OCZ ZX 1250 Watt Power Supply Test Drive

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First let’s do a little copy/paste from OCZ’s web site so you can see what they say about their own ZX 1250 Watt Power Supply:

The Company Line

“Max-Performance PSU / 1250W / 80+ Gold / Triple VGA-Ready / Fully Modular / Single +12V Rail

The ZX Series is the unsurpassed solution for driving today’s Enthusiast and gaming systems. It has the ability to easily power both NVIDIA SLI and ATI CrossFire modes, supporting even the most power hungry GPUs with up to triple GPU configurations. Industrial-grade yet designed with enthusiasts, gamers and modders in mind, this PSU is stable, robust, and sports a sleek look and the most compact form factor of its class.

Kept ultra-cool with a load-controlled ultra quiet 140mm fan, the ZX Series was engineered to be the quietest PSU available and eliminate distracting noises from your PC. Highly efficient, featuring up to 92% efficiency at typical load and up to 89% at full load, this leading-edge power supply remains rock solid and powerful while retaining superior efficiency under load. The OCZ ZX Series provides universal Input and Active PFC (Power Factor Correction) to effectively regulate input voltage across worldwide power grids and maintain an economical, stable supply of power.

Backed with OCZ’s 5-year “PowerSwap” warranty, the OCZ ZX Series PSU gives you the ultimate power and peace of mind to ensure the stability, low noise, optimized air flow, and efficiency of your gaming system.”

You would expect the features and specifications of a power supply this robust to be quite expansive, and it is indeed! Some of the highlights are the 5 year PowerSwap warranty, and the whopping 104 amps on the single +12v rail!


  • 1250W Continous Power
  • OCZ PowerWhisper Technology
  • Ultra Quiet 140mm Ball-Bearing Fan
  • SLI and CrossFire Support
  • Fully Modular Cable Management System
  • 5 Year Warranty Backed By OCZ’s Exclusive PowerSwap Replacement Program, No More Endless Return-For-Repair Loops!


Part Number OCZ-ZX1250W
Fan 140 mm Ultra Quiet
PFC Active PFC
Efficiency 92% (Typical Load)
Operating Temp 10c to 50c
Protection Features Over voltage
Over Current
Short Circuit
Dimensions 150 mm (W) x 86 mm (H) x 175 mm (D)
Weight 2.3 kg – 5.07 Lbs
Compliance ATX12V v2.2, EPS12V
Certifications 80 Plus Gold
MTBF 100,000 Hours
Modular Connectors
ATX 1x 20+4 pin ATX  (560 mm)
EPS 12V 2x Dual 4+4 pin (560 mm)
PCI-e 6x  6+2 pin (560 mm)
SATA ** 4x SATA (560 mm +150 mm +150Mm)
3 SATA power connectors on each cable
Molex ** 3x Molex (560 mm + 150mm + 150 mm)
(+150 mm FDD x1)
3 Molex power connectors on each cable
FDD power available on one of the cables
Product Sheet Link
Mechanical Drawing Link

** Note: Not all can be connected simultaneously

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