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Lian-Li Silent Force 750W Review

paulktreg    -   October 7, 2008
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Testing:

For more information on our testing system, please browse our testing methodology.

 

 

 

 

 

 

 

 

Electrical Safety:

 

Electrical Safety Test Class 1
Manufacturer/Model
Pass/Fail
Lian-Li Silent Force 750W
Pass

 

Short Circuit Protection:

I short circuited the 3V3, 5V0 and all four 12V lines in turn. The power supply did shut down, and once the short was removed and the unit switched off for at least one second, resumed normal operation. Although listed here at the beginning of the testing section, I tend to leave this test until the very end, in case it doesn't quite go to plan.

 

DC Output Voltage Load Regulation:

 

Testing @ 110VAC

 

 

110VAC - Total Load at 176W which is 23% of Rated Maximum Output Power.

PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.38
3.16
10.68
3.135 – 3.465
Pass
+5V0
5.11
4.78
24.43
4.75 – 5.25
Pass
+12V0(1)
12.18
2.57
31.30
11.4 – 12.6
Pass
+12V0(2)
12.19
2.58
31.45
11.4 – 12.6
Pass
+12V0(3)
12.18
2.55
31.06
11.4 – 12.6
Pass
+12V0(4)
12.18
2.60
31.67
11.4 – 12.6
Pass
-12V0
11.90
0.36
4.28
10.8 – 13.2
Pass
+5VSB
5.03
2.16
10.86
4.75 – 5.25
Pass
Total Power Supply Loading
176W
 

 

110VAC - Total Load at 476W which is 64% of Rated Maximum Output Power.

PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.33
7.91
26.43
3.135 – 3.465
Pass
+5V0
5.07
9.40
47.66
4.75 – 5.25
Pass
+12V0(1)
12.11
7.79
96.52
11.4 – 12.6
Pass
+12V0(2)
12.11
8.02
97.12
11.4 – 12.6
Pass
+12V0(3)
12.08
8.03
97.00
11.4 – 12.6
Pass
+12V0(4)
12.08
7.99
96.52
11.4 – 12.6
Pass
-12V0
12.19
0.37
4.51
10.8 – 13.2
Pass
+5VSB
4.94
2.15
10.62
4.75 – 5.25
Pass
Total Power Supply Loading
476W
 

 

110VAC - Total Load at 748W which is 100% of Rated Maximum Output Power.

PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.28
12.21
40.05
3.135 – 3.465
Pass
+5V0
5.06
9.40
47.56
4.75 – 5.25
Pass
+12V0(1)
12.05
13.40
161.47
11.4 – 12.6
Pass
+12V0(2)
12.02
13.47
161.91
11.4 – 12.6
Pass
+12V0(3)
11.96
13.45
160.86
11.4 – 12.6
Pass
+12V0(4)
11.97
13.44
160.88
11.4 – 12.6
Pass
-12V0
12.56
0.39
4.90
10.8 – 13.2
Pass
+5VSB
4.83
2.12
10.24
4.75 – 5.25
Pass
Total Power Supply Loading
748W
 

 

Testing @ 230VAC

 

 

230VAC - Total Load at 176W which is 23% of Rated Maximum Output Power.

PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.38
3.15
10.65
3.135 – 3.465
Pass
+5V0
5.12
4.78
24.47
4.75 – 5.25
Pass
+12V0(1)
12.18
2.57
31.30
11.4 – 12.6
Pass
+12V0(2)
12.19
2.58
31.45
11.4 – 12.6
Pass
+12V0(3)
12.18
2.55
31.06
11.4 – 12.6
Pass
+12V0(4)
12.18
2.59
31.55
11.4 – 12.6
Pass
-12V0
11.88
0.36
4.28
10.8 – 13.2
Pass
+5VSB
5.10
2.18
11.12
4.75 – 5.25
Pass
Total Power Supply Loading
176W
 

 

230VAC - Total Load at 477W which is 64% of Rated Maximum Output Power.

PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.33
7.94
26.44
3.135 – 3.465
Pass
+5V0
5.07
9.42
47.76
4.75 – 5.25
Pass
+12V0(1)
12.10
7.99
96.68
11.4 – 12.6
Pass
+12V0(2)
12.11
8.04
97.36
11.4 – 12.6
Pass
+12V0(3)
12.08
8.04
97.12
11.4 – 12.6
Pass
+12V0(4)
12.08
8.02
96.88
11.4 – 12.6
Pass
-12V0
12.20
0.37
4.51
10.8 – 13.2
Pass
+5VSB
4.94
2.15
10.62
4.75 – 5.25
Pass
Total Power Supply Loading
477W
 

 

230VAC - Total Load at 748W which is 100% of Rated Maximum Output Power.

PSU
DC Line
Measured
Voltage(V)
Measured
Current (A)
Load Power
(W)
ATX12V V Limits
(V)
Pass/Fail
+3V3
3.27
12.26
40.09
3.135 – 3.465
Pass
+5V0
5.00
9.43
47.15
4.75 – 5.25
Pass
+12V0(1)
12.02
13.42
161.31
11.4 – 12.6
Pass
+12V0(2)
12.02
13.49
162.13
11.4 – 12.6
Pass
+12V0(3)
11.96
13.46
160.98
11.4 – 12.6
Pass
+12V0(4)
11.97
13.48
161.36
11.4 – 12.6
Pass
-12V0
12.55
0.39
4.89
10.8 – 13.2
Pass
+5VSB
4.83
2.12
10.24
4.75 – 5.25
Pass
Total Power Supply Loading
748W
 

 

The DC voltage regulation of the Lian-Li Silent Force 750W is excellent. I was able to take the power supply to 100% of the rated load and the power supply held the rails well within the ATX12V specification, the primary 3V3, 5V0 and particularly the 12V rails are almost perfect.

 




  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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