I bought a lot of 2 TB WD Caviar. I had very good results in them on my iMac. I mainly used to store data, where the rapid recovery of data will not be considered used. These sources are more interested in require the device's USB port when I please. However, I am also interested in them in power, because ..Well, simply because they are interested. Over the years I have worked my way up the stairs to the hard drive capacity. How many of you, I was very pleased with how hot these older models are surprised. I swear, you can fry eggs, some of them. I've never felt comfortable in my life in fear, to burn likely. Fortunately, no one.
If the product of the Caviar GP (1TB for the first time realized that), I was enough to reduce the power required interest. Electronics, heat is the enemy of the ingredients. Usually 10 ° C to cause the reduction of the half-life of components. Caviar seemed a sure way to reduce energy when the numbers really happened to be indicated.
I took a unit of work where I was speaking test teaching materials. In particular, I have a very good Tektronix current probes, which allowed me to measure AC and DC currents. I built a small cable that allows me to +12 V and +5 V to get cable, so I can my current sensor using the wires to measure the energy consumption clip. I have added a boy to feed the two power supplies, so I can have two different voltages. So I can see and measure the energy consumption of individuals and groups in the army. For more accurate measurements so you can easily figure out, you rarely see a fraction of watts.
Because it is not (actually I do not know how), the scope of this review to take pictures, everything, what can I do to verbally describe the observations. My research is ongoing, but there is a good idea of how to get these units, and when I draw.
* If the camera is sitting doing nothing, but the thread is the current collector 12 0.24 V and +5 V 0,13 discharge. Equal to 4.2 watts in idle. They are measured in the previous sections, high performance, but I'm willing to bet Caviar Green broke more than half the power of traditional hard drives. Do not be surprised, if 1 / 3 power.
* If you are close to the supply voltage of more arrests and power. This is to enable a comfortable way on or off. I would like to power up to +5 V rail, the district judge from a single +5 V PFET is easier than 12 V.
* If the camera is turned on, +5 V pull relatively stable 500-600 mA. Current 12 V, 200 mA, ramp and jump your way up to 600 mA for 10 seconds when the camera is the speed. At this stage, 12 V peak counts at idle) 0.24. This does not change much later, regardless of disk activity (delete, write, read, etc..) In addition, the power of +5 V is reserved. It is clear that the servo head is based on +5 V, and is a source of 12 V. It is difficult to describe in words to the +5 V, but I would say that the current assessment of the work of head movement on is 400 mA. No activity is the +5 V voltage of 0.13. If the device to do what you do and then goes into standby 4.2 W in standby mode I mentioned earlier. If you are under the designer must recognize that these trends medium provides a DC, and his "diamond" alternating current, which leads to a list of average values. Current 5 V is about 300 mA Hash percentage points, 12 V and the hash is probably 400 mA pp
* I never have to put the OSX disk to sleep. I've tried all the Mac users around the world (spin-down, cocktail), but no matter what you do, you do not, at least for me. If you're a tool for PC WD does not really support OSX. Although the right to sit the hard drives on the desktop, 4.2 Push-to-B, turn and drawing. Not "totally green" to me.
* Standby my infrared thermometer measures the temperature of 12 degree rise, which is a relatively small number. UL limits for human consumption in touch, the temperature usually between 50 and 55 degrees - begin the withdrawal of the parties at this temperature. So if the unit is 12 degrees above the ambient temperature is sitting at normal temperature (25 degrees), temperature of the disk is only 37 degrees (98.6 degrees Celsius, at the heart of man!). This explains why people are told that a single "good". Because there are things that actually works pretty well.
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