Comparison

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General

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Brand	Point of View	LC Power
Product name	Black Diamond 500W	Silent Giant 550W
Product code	BLACK DIAMOND 500WATT	LC6550
Tested by	Zahied Bholai	Zahied Bholai
Test Date	03/27/2006	03/05/2006
Details	Details	Details
Average price
Specifications	Point of View Black Diamo ...	LC Power Silent Gian ...
Color	Black	Black
Size fan 1	12 cm	14 cm
Size fan 2	0	0
Size fan 3	0	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	2.1 kg	1.7 kg
Extras / Accessoires
Retail / OEM	Retail	Retail
Quoted power	Point of View Black Diamo ...	LC Power Silent Gian ...
Continuous power	500 W	550 W
Max. current 12 V - Rail 1	16 A	16 A
Max. current 12 V - Rail 2	17 A	18 A
Max. current 12 V - Rail 3	0	0
Max. current 12 V - Rail 4	0	0
Max. current 5 V	40 A	40 A
Max. curren 3.3 V	34 A	35 A
Measured voltage 12V1 rail (+ opt. 12V3 and 12V4)	Point of View Black Diamo ...	LC Power Silent Gian ...
4 A load (= 50 W @ 12 V)	12.12 V	12.15 V
8 A load (= 100 W @ 12 V)	12.02 V	12.03 V
12 A load (= 150 W @ 12 V)	11.94 V	11.93 V
16 A load (= 200 W @ 12 V)	11.87 V	11.83 V
20 A load (= 250 W @ 12 V)	0	11.75 V
24 A load (= 300 W @ 12 V)	0	0
28 A load (= 350 W @ 12 V)	0	0
32 A load (= 400 W @ 12 V)	0	0
36 A load (= 450 W @ 12 V)	0	0
40 A load (= 500 W @ 12 V)	0	0
Maximum load 12V1 (+3/4) within 5% margin	19 A	21 A
Connectors	Point of View Black Diamo ...	LC Power Silent Gian ...
Standard peripheral	8	7
Floppy	2	2
Serial ATX	2	2
6 pin PEG	2	1
Mainboard connector	24 pins	24 pins
4 pin CPU
8 pin CPU
Measured voltage 12V2 rail	Point of View Black Diamo ...	LC Power Silent Gian ...
4 A load (= 50 W @ 12 V)	12.03 V	12.09 V
8 A load (= 100 W @ 12 V)	11.89 V	11.94 V
12 A load (= 150 W @ 12 V)	11.76 V	11.82 V
16 A load (= 200 W @ 12 V)	11.65 V	11.71 V
20 A load (= 250 W @ 12 V)	11.56 V	0
Maximum load 12V2 within 5% margin	19 A	18 A
Measured voltage 5V rail	Point of View Black Diamo ...	LC Power Silent Gian ...
4 A load (= 20 W @ 5 V)	5.18 V	5.04 V
8 A load (= 40 W @ 5 V)	5.16 V	4.99 V
12 A load (= 60 W @ 5 V)	5.13 V	4.96 V
16 A load (= 80 W @ 5 V)	5.11 V	4.92 V
20 A load (= 100 W @ 5 V)	5.07 V	4.89 V
24 A load (= 120 W @ 5 V)	5.05 V	4.85 V
28 A load (= 140 W @ 5 V)	5.02 V	4.81 V
32 A load (= 160 W @ 5 V)	5 V	4.78 V
36 A load (= 180 W @ 5 V)	4.97 V	0
40 A load (= 200 W @ 5 V)	4.96 V	0
44 A load (= 220 W @ 5 V)	4.94 V	0
48 A load (= 240 W @ 5 V)	4.93 V	0
52 A load (= 260 W @ 5 V)	0	0
56 A load (= 280 W @ 5 V)	0	0
60 A load (= 300 W @ 5 V)	0	0
64 A load (= 320 W @ 5 V)	0	0
Maximum load 5V within 5% margin	48 A	33 A
Measured voltage 3.3V rail	Point of View Black Diamo ...	LC Power Silent Gian ...
4 A load (= 13.2 W @ 3.3 V)	3.38 V	3.3 V
8 A load (= 26.4 W @ 3.3 V)	3.36 V	3.28 V
12 A load (= 39.6 W @ 3.3 V)	3.35 V	3.27 V
16 A load (= 52.8 W @ 3.3 V)	3.32 V	3.24 V
20 A load (= 66.0 W @ 3.3 V)	3.31 V	3.23 V
24 A load (= 79.2 W @ 3.3 V)	3.29 V	3.21 V
28 A load (= 92.4 W @ 3.3 V)	3.28 V	3.2 V
32 A load (= 105.6 W @ 3.3 V)	3.27 V	2.69 V
Maximum load 3.3V within 5% margin	32 A	25 A
Noise production (20 cm. distance)	Point of View Black Diamo ...	LC Power Silent Gian ...
No load - Min. rpm	38.5 dB(A)	46.9 dB(A)
No load - Max. rpm	38.5 dB(A)	46.9 dB(A)
266 W load - Min. rpm	44.7 dB(A)	49.2 dB(A)
266 W load - Max. rpm	44.7 dB(A)	49.2 dB(A)
Power usage	Point of View Black Diamo ...	LC Power Silent Gian ...
Power usage - 266 W load (8A@12V1,12V2,5V,3.3V)	319 W	316 W
Efficiency - 266 W load	83.4 %	84.2 %
Power usage - 339 W load (12A@12V1,12V2,5V,3.3V)	480 W	501 W
Efficiency - 339 W load	70.6 %	67.7 %
Power usage PC off - PSU power switch on	3.3 W	0.3 W
Power usage PC off - PSU power switch off	0	0