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Ultra LSX 750W Power Supply Review

paulktreg    -   December 1, 2010
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Specification:

 

Review Sample: Ultra LSX 750W Power Supply, Part Number U12-40874.

 

Ratings Table:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ultra LSX 750W (U12-40874) Power Supply Specification Table
AC Input
115-230V     12-8A     50-60Hz
DC Output
+3V3
+5V
+12V
-12V
+5VSB
Maximum Load
24A
30A
58A
0.5A
3A
Maximum Combined
Wattage
150W
696W
6W
15W
729W
21W
750W

 

System Protection:

 

The only information available for the Ultra LSX 750W power supply is for over-voltage.

Ultra LSX 750W (U12-40874) Power Supply Over-Voltage Protection
Rail
Trip Point (Maximum)
3V3
4.8V
5V
7.0V
12V
17V

 

Safety & Agency Approvals:

 

CE, CB, UL 1950, IEC 60950 & FCC Class B.

 

Power Supply Weight:

 

Power Supply Weight
Manufacturer/Model
Weight
Ultra LSX 750W/U12-40874
2.4kg
5.3 lbs

 

Power Supply Connectors:

 

Ultra LSX 750W (U12-40874) Power Supply Connectors
Connector Type
Qty
Motherboard 20/24-Pin
1
EPS12V 8-Pin
1
ATX12V 4-Pin
1
PCI-E 6+2-Pin
4
SATA Power 15-Pin
8
Peripheral 4-Pin
6
FDD 4-Pin
1

 

Power Supply Cable Lengths:

 

Ultra LSX 750W (U12-40874) Power Supply Cable Set
Cable Type
Cable Length/Connector Spacing’s
Qty
Captive
PSU > 22" > Motherboard 24-Pin
1
Captive
PSU > 22" > EPS12V 8-Pin > 6" > ATX12V 4-Pin
1
Captive
PSU > 22" > PCI-E 6+2-Pin > 6" > PCI-E 6+2-Pin
2
Captive
PSU > 18" > SATA > 6" > SATA > 6" > SATA > 6" > SATA
2
Captive
PSU > 18" > Peripheral > 6" > Peripheral > 6" > Peripheral
1
Captive
PSU > 18" > Peripheral > 6" > Peripheral > 6" > Peripheral > 6" > FDD
1

 

Features:

The Ultra LSX 750W power supply doesn't include a feature list, so the information below is drawn from the user manual and packaging.

  • Industry leading support
  • Limited lifetime warranty
  • Whisper quiet 135mm cooling fan
  • Quality construction
  • Braided cables
  • Loads of extras
  • 80 Plus Bronze efficiency



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