Comparison

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General

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