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Corsair HX750W Power Supply Review

paulktreg    -   August 2, 2009
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Specifications:

Ratings Table:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corsair HX750W Specifications (Model: CMPSU-750HX)
AC Input
100-240VAC     10A     50-60Hz
DC Output
+3V3
+5V
+12V
-12V
+5VSB
Maximum Load
25A
25A
62A
0.8A
3A
Maximum Combined Wattage
150W
744W
9.6W
15W
Total Power: 750W

 

System Protection:

 

Corsair HX750W
Over Current Protection
DC Rail
Trigger Point
+3V3
44A
+5V
44A
+12V
90A
Over Voltage Protection
DC Rail
Trigger Point
+3V3
4.5V Max
+5V
7.0V Max
+12V
15.6V Max
Over Power Protection
Fold back at approximately 110%~150% of rated maximum load
Short Circuit Protection
All outputs to ground

 

Safety & Agency Approvals:

 

  • CE EN55022:1998/A1:2000/A2:2003 CLASS B EN 6100-3-2:2000
  • EN 6100-3-3:1995/A1:2001 EN55024:1998/A1:2001/A2:2003
  • FCC Part 15 & Part 2 (CISPR 22 CLASS B)
  • C-TICK AS/NZS CISPR 22:2002 CLASS B
  • UL 60950-1
  • CSA C22.2 NO. 60950-1
  • TUV EN 60950-1
  • CB IEC 60950-1

 

Power Supply Weight:

 

Power Supply Weight
Manufacturer/Model
Weight
Corsair HX750W
2.5kg
5.5lbs

 

Power Supply Connectors:

 

Corsair HX750W Connectors
20+4 Pin Motherboard
Captive
1
ATX12V 4+4 Pin or EPS12V 8 Pin
Captive
1
Peripheral 4 Pin
Modular
8
SATA Power
Modular
12
FDD
Adapter
2
PCI-E 6+2 Pin
Modular
4

 

Power Supply Cable Lengths:

 

Corsair HX750W Connector Cable Lengths
Captive
PSU > 24” > 20+4 Pin Motherboard
1
Captive
PSU > 24” > 4+4 Pin ATX12V/EPS 12V
1
Modular
PSU > 18” > Peripheral > 4” > Peripheral > 4” > Peripheral > 4” > Peripheral
2
Modular
PSU > 18” > SATA > 4” > SATA > 4” > SATA > 4” > SATA
3
Modular
PSU > 24” > PCI-E 6+2 Pin
4
Adapter
Peripheral > 4” > FDD
2

 

Corsair Advantages:

Exactly as printed in the user manual.

  • Flat Modular Cables - Low-profile cable design allows for superior airflow and complete flexibility to choose only the cables that you need.
  • 140mm Thermally Controlled Fan - Ultra-quiet, double ball bearing fan intelligently throttles fan speed based on temperature.
  • 105°C Solid State Capacitors - Solid-state capicitors rated at 105°C for uncompromised performance and long term reliability.
  • DC-to-DC Converter - DC-to-DC conversion for 3V3 and %v voltage rails for best-in-class efficiency.

 

Corsair Core Features:

Exactly as printed in the user manual.

  • Guaranteed to sustain its full rated wattage at an ambient temperature of 50°C.
  • Up to 90% energy-efficiency under real-world load conditions.
  • Single +12V rail design providing up to 70A (60A for 750W).
  • Multi-GPU ready.
  • 105°C solid-state capacitors.
  • Active Power Factor Correction (PFC) with PF value of 0.99.
  • Supports ATX12V 2.3 and EPS12V 2.91 standards. Backwards compatible with ATX12V 2.01.
  • Auto switching circuitry for universal AC input from 90-264V.
  • Over Current/Voltage/Power Protection, Under Voltage Protection and Short Circuit Protection provide complete component safety.
  • Dimensions: 150mm(W) x 86mm(H) x 180mm(L).
  • MTBF: 100,000 hours.

 




  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specifications & Features
  4. Testing: DC Voltage Load Regulation At 110VAC & 230VAC
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
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