Lian Li Silent Force 850W Review

Testing:

For more information on how we test our power supplies, please browse our testing methodology.

Electrical Safety:

 

 

 

 

 

 

 

 

 

Electrical Safety Test Class 1
Manufacturer/Model	Pass/Fail
Lian Li Silent Force 850W	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 177W which is 21% of Rated Maximum Output Power.
PSU DC Line	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	3.20	10.88	3.135 – 3.465	Pass
+5V0	5.19	4.85	25.17	4.75 – 5.25	Pass
+12V0(1)	12.18	2.59	31.55	11.4 – 12.6	Pass
+12V0(2)	12.23	2.59	31.67	11.4 – 12.6	Pass
+12V0(3)	12.18	2.56	31.18	11.4 – 12.6	Pass
+12V0(4)	12.23	2.60	31.80	11.4 – 12.6	Pass
-12V0	11.82	0.35	4.14	10.8 – 13.2	Pass
+5VSB	5.12	2.07	10.60	4.75 – 5.25	Pass
Total Power Supply Loading			177W

 

110VAC - Total Load at 466W which is 55% of Rated Maximum Output Power.
PSU DC Line	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	8.26	28.08	3.135 – 3.465	Pass
+5V0	5.19	4.84	25.12	4.75 – 5.25	Pass
+12V0(1)	12.13	8.18	99.22	11.4 – 12.6	Pass
+12V0(2)	12.19	8.13	99.10	11.4 – 12.6	Pass
+12V0(3)	12.18	8.23	100.24	11.4 – 12.6	Pass
+12V0(4)	12.21	8.13	99.27	11.4 – 12.6	Pass
-12V0	11.99	0.36	4.32	10.8 – 13.2	Pass
+5VSB	5.11	2.07	10.58	4.75 – 5.25	Pass
Total Power Supply Loading			466W

 

110VAC - Total Load at 860W which is 101% of Rated Maximum Output Power.
PSU DC Line	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	12.76	43.38	3.135 – 3.465	Pass
+5V0	5.29	14.12	74.69	4.75 – 5.25	Fail
+12V0(1)	12.05	11.56	139.30	11.4 – 12.6	Pass
+12V0(2)	12.17	11.37	138.37	11.4 – 12.6	Pass
+12V0(3)	12.14	18.52	224.83	11.4 – 12.6	Pass
+12V0(4)	12.16	18.49	224.83	11.4 – 12.6	Pass
-12V0	12.20	0.37	4.51	10.8 – 13.2	Pass
+5VSB	5.10	2.07	10.56	4.75 – 5.25	Pass
Total Power Supply Loading			860W

 

Testing @ 230VAC

 

 

230VAC - Total Load at 177W which is 21% of Rated Maximum Output Power.
PSU DC Line	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	3.19	10.85	3.135 – 3.465	Pass
+5V0	5.19	4.83	25.07	4.75 – 5.25	Pass
+12V0(1)	12.23	2.59	31.67	11.4 – 12.6	Pass
+12V0(2)	12.23	2.59	31.67	11.4 – 12.6	Pass
+12V0(3)	12.22	2.55	31.16	11.4 – 12.6	Pass
+12V0(4)	12.23	2.61	31.92	11.4 – 12.6	Pass
-12V0	11.82	0.35	4.14	10.8 – 13.2	Pass
+5VSB	5.12	2.07	10.60	4.75 – 5.25	Pass
Total Power Supply Loading			177W

 

230VAC - Total Load at 462W which is 54% of Rated Maximum Output Power.
PSU DC Line	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	8.25	28.05	3.135 – 3.465	Pass
+5V0	5.19	4.85	25.17	4.75 – 5.25	Pass
+12V0(1)	12.12	8.17	99.02	11.4 – 12.6	Pass
+12V0(2)	12.20	8.09	97.08	11.4 – 12.6	Pass
+12V0(3)	12.20	8.12	99.06	11.4 – 12.6	Pass
+12V0(4)	12.21	8.09	98.78	11.4 – 12.6	Pass
-12V0	11.99	0.36	4.32	10.8 – 13.2	Pass
+5VSB	5.11	2.07	10.58	4.75 – 5.25	Pass
Total Power Supply Loading			462W

 

230VAC - Total Load at 863W which is 101% of Rated Maximum Output Power.
PSU DC Line	Measured Voltage(V)	Measured Current (A)	Load Power (W)	ATX12V V Limits (V)	Pass/Fail
+3V3	3.40	12.83	43.62	3.135 – 3.465	Pass
+5V0	5.30	14.37	76.16	4.75 – 5.25	Fail
+12V0(1)	12.06	11.60	139.90	11.4 – 12.6	Pass
+12V0(2)	12.17	11.43	139.10	11.4 – 12.6	Pass
+12V0(3)	12.15	18.49	224.65	11.4 – 12.6	Pass
+12V0(4)	12.16	18.50	224.96	11.4 – 12.6	Pass
-12V0	12.20	0.37	4.51	10.8 – 13.2	Pass
+5VSB	5.10	2.07	10.56	4.75 – 5.25	Pass
Total Power Supply Loading			863W

 

The DC voltage load regulation of the Lian Li Silent Force is, on the whole, very good, apart from two minor failures on the +5V0 rail. The +5V0 rail voltage is slightly high, of the order of 50mV, at 100% load at both 110VAC and 230VAC. This is a minor failure, although a failure nonetheless, and wouldn't really cause a problem when installed. The 12V rails all held up very well, and the 3V3 rail remained constant at 3.4V throughout testing, which is excellent.