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Principled Technologies, Inc.: Energy consumption of seven Intel chipset motherboards
2. Power down the computer.
3. Attach an external USB hard disk.
4. Power on the computer.
5. At the Symantec Ghost screen, click OK.
6. Select LocalÆDiskÆTo Image.
7. Click OK.
8. Select the Primary disk, and click OK.
9. Select the external hard disk in the copy image to drop-down box, name the file BASE, and click Save.
10. At the Compress Image dialog, select High.
11. At the Proceed dialog, select Yes.
12. When the ghost image is complete, click OK, and exit Ghost.
13. Power down the computer.
14. Disconnect the USB hard disk.
15. Reboot the computer.
Extech Power Analyzer setup and test procedure
We did the following to set up the Extech Power Analyzer and software:
1. Power off each computer under test.
2. Connect the power cord from the computer under test to the Power Analyzer’s output load power outlet.
3. Plug the power cord from the Power Analyzer’s input voltage connection into a power outlet.
4. Connect a separate host computer to the Power Analyzer using an RS-232 cable. This computer will
monitor and collect the power measurement data.
5. Turn on the Extech Power Analyzer by pressing the green On/Off button.
6. Turn on the host computer.
7. Insert the Extech software installation CD into the host computer, and install the software as follows:
a. Using Windows Explorer, browse to the Extech Power Analyzer installation CD, and click on the
Setup.exe.
b. At the Welcome to the Power Analyzer screen, click OK.
c. At the installation screen, leave the default installation directory, and click the icon button to begin
installation.
d. At the Setup has completed successfully screen, click OK.
8. Launch the Extech Power Analyzer software by clicking StartÆAll ProgramsÆPower Analyzer.
9. At the Select COM port dialog, click OK.
10. From the top menu, select OptionÆCOM. Select COM1.
11. Exit the Extech Power Analyzer software.
We did the following to measure energy consumption during a test:
1. Power on the computer under test, and make sure you have prepped it to run a test.
2. On the host computer, launch the Extech Power Analyzer software by going to StartÆAll
ProgramsÆPower Analyzer.
3. From the top menu, click OptionÆSample Rate. Type 1.0, and click OK.
4. From the top menu, click FileÆName.
5. In the Name field, type a name that appropriately describes the platform and configuration, and click OK.
6. To begin recording power, click FileÆStart RecordingÆNow (Auto) at the same time you start a test.
7. To stop recording power, click FileÆEnd Recording at the same time you stop a test.
To view the power measurement data, double-click on the My Computer desktop icon and select the C:
driveÆProgram FilesÆPower Analyzer. When the program launches, select the test name selected earlier, and
double-click that file name. To open the file, select Excel as the program for viewing the data. This is the file you
will use to calculate the average power usage. We calculate average power usage by doing the following:
1. Use Windows Explorer to locate the log file. By default, Windows saves the log file in C:\Program
Files\Power Analyzer.
2. Open the log file with Microsoft Excel.
3. Insert a column by right-clicking on column E, and clicking Insert.
4. In cell E1, type =value(left(D1,7)), and press Enter.
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