Comparison

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General
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Brand	LC Power
Product name	Silent Giant 550W
Product code	LC6550
Tested by	Zahied Bholai
Test Date	03/05/2006
Details	Details
Average price
Specifications	LC Power Silent Gian ...
Color	Black
Size fan 1	14 cm
Size fan 2	0
Size fan 3	0
Lighted fans
Fan speed controlled by temperature
Manual rpm adjustment
Connector for rpm control
Modular
Mesh around mainboard cable
Mesh around other cables
Adjustable voltage outputs
Weight	1.7 kg
Extras / Accessoires
Retail / OEM	Retail
Quoted power	LC Power Silent Gian ...
Continuous power	550 W
Max. current 12 V - Rail 1	16 A
Max. current 12 V - Rail 2	18 A
Max. current 12 V - Rail 3	0
Max. current 12 V - Rail 4	0
Max. current 5 V	40 A
Max. curren 3.3 V	35 A
Measured voltage 12V1 rail (+ opt. 12V3 and 12V4)	LC Power Silent Gian ...
4 A load (= 50 W @ 12 V)	12.15 V
8 A load (= 100 W @ 12 V)	12.03 V
12 A load (= 150 W @ 12 V)	11.93 V
16 A load (= 200 W @ 12 V)	11.83 V
20 A load (= 250 W @ 12 V)	11.75 V
24 A load (= 300 W @ 12 V)	0
28 A load (= 350 W @ 12 V)	0
32 A load (= 400 W @ 12 V)	0
36 A load (= 450 W @ 12 V)	0
40 A load (= 500 W @ 12 V)	0
Maximum load 12V1 (+3/4) within 5% margin	21 A
Connectors	LC Power Silent Gian ...
Standard peripheral	7
Floppy	2
Serial ATX	2
6 pin PEG	1
Mainboard connector	24 pins
4 pin CPU
8 pin CPU
Measured voltage 12V2 rail	LC Power Silent Gian ...
4 A load (= 50 W @ 12 V)	12.09 V
8 A load (= 100 W @ 12 V)	11.94 V
12 A load (= 150 W @ 12 V)	11.82 V
16 A load (= 200 W @ 12 V)	11.71 V
20 A load (= 250 W @ 12 V)	0
Maximum load 12V2 within 5% margin	18 A
Measured voltage 5V rail	LC Power Silent Gian ...
4 A load (= 20 W @ 5 V)	5.04 V
8 A load (= 40 W @ 5 V)	4.99 V
12 A load (= 60 W @ 5 V)	4.96 V
16 A load (= 80 W @ 5 V)	4.92 V
20 A load (= 100 W @ 5 V)	4.89 V
24 A load (= 120 W @ 5 V)	4.85 V
28 A load (= 140 W @ 5 V)	4.81 V
32 A load (= 160 W @ 5 V)	4.78 V
36 A load (= 180 W @ 5 V)	0
40 A load (= 200 W @ 5 V)	0
44 A load (= 220 W @ 5 V)	0
48 A load (= 240 W @ 5 V)	0
52 A load (= 260 W @ 5 V)	0
56 A load (= 280 W @ 5 V)	0
60 A load (= 300 W @ 5 V)	0
64 A load (= 320 W @ 5 V)	0
Maximum load 5V within 5% margin	33 A
Measured voltage 3.3V rail	LC Power Silent Gian ...
4 A load (= 13.2 W @ 3.3 V)	3.3 V
8 A load (= 26.4 W @ 3.3 V)	3.28 V
12 A load (= 39.6 W @ 3.3 V)	3.27 V
16 A load (= 52.8 W @ 3.3 V)	3.24 V
20 A load (= 66.0 W @ 3.3 V)	3.23 V
24 A load (= 79.2 W @ 3.3 V)	3.21 V
28 A load (= 92.4 W @ 3.3 V)	3.2 V
32 A load (= 105.6 W @ 3.3 V)	2.69 V
Maximum load 3.3V within 5% margin	25 A
Noise production (20 cm. distance)	LC Power Silent Gian ...
No load - Min. rpm	46.9 dB(A)
No load - Max. rpm	46.9 dB(A)
266 W load - Min. rpm	49.2 dB(A)
266 W load - Max. rpm	49.2 dB(A)
Power usage	LC Power Silent Gian ...
Power usage - 266 W load (8A@12V1,12V2,5V,3.3V)	316 W
Efficiency - 266 W load	84.2 %
Power usage - 339 W load (12A@12V1,12V2,5V,3.3V)	501 W
Efficiency - 339 W load	67.7 %
Power usage PC off - PSU power switch on	0.3 W
Power usage PC off - PSU power switch off	0