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Lian-Li Silent Force 750W Review

paulktreg    -   October 7, 2008
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Closer Look (The Power Supply):

The Lian-Li Silent Force 750W certainly looks the part. I especially liked the black textured finish to the paint work, probably because it's different. The back of the power supply as a large honeycombed grill, power inlet and a nice large power on/off switch. Have you ever struggled with your hand round the back of your PC trying to find the small rocker switch that most manufacturers insist on fitting? This one should be easier to find! A very nice inclusion is the label telling you what voltages are available on the modular cable connectors and which 12V rails they are connected to (in this case 12V3 and 12V4). Not only does this help me know were to connect the loads, it helps you the installer find the correct connection points for your hardware.

 

 

 

 

 

 

 

 

The standard specification label is attached to one side and on the other we are informed of the Fan Delay-Off Function. I could not get this to work on the last power supply that included this function so let's hope I have better luck this time.

 

 

The next two photographs show the sleeved hard wired and modular cables. You will notice the inclusion of a plastic sheathed ferrite bead at the power supply end of the cable on the two PCI-E power cables in the center of the photograph. These are normally fitted to help reduce EMI (electromagnetic or radio interference) on the power rails and this is the first power supply I have seen with these fitted. I have to question the inclusion of this component but unfortunately I have no valid way of testing their effectiveness.

 

 

The Lian-Li Silent Force 750W is fitted with a large 12V DC 135mm clear plastic ball bearing fan manufactured by Globe and covered by a black, slightly metallic, painted grill. If you look carefully at the internal view of the fan on the right you will see the inclusion of slightly fogged, plastic baffle, to optimise airflow over the internal printed circuit board and heatsinks for maximum cooling effect.

 

 

The internal layout ot the power supply is uncluttered which should maximise airflow over the components. The copper coloured heatsinks have a fine toothed surface to increase the surface area of the heatsink and improve heat dissipation.

 

 

The view below shows more notches cut into the heatsink to further increase the overall surface area. In the photograph above you can see a sheet of insulator material, also fitted to the otherside of the power supply (I have folded it down to take the photograph) to prevent any shorts to the earthed power supply casing.

 

The main capacitor is made by Nippon Chemi-Con of Japan and in case you forget this, there is a MIJ label stuck to the top of the main capacitor proclaiming these components are of Japanese origin. All the electrolytics, on which I could make out a manufacturers mark, are Japanese in origin and rated at 105°C, rather than 85°C, which will improve the lifespan of the power supply.

A well built unit containing what would appear to be quality components. I am very impressed with overall quality of this power supply so far, let's hope the electrical performance is up to the same high standard.

 




  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & 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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