Dell Latitude E6420 User Manual download pdf (Page 20)

A Principled Technologies test report 20

Durability and battery life of Dell Latitude laptops

3. Click Start all tests.

Conducting the drop test

We used a Lansmont PDT56ED Precision Drop Tester, and dropped each laptop onto commercial carpet. We

opened the laptop so that the screen and keyboard formed a 120-degree angle, and then placed the laptop flat on the

platen. Orienting the laptop in this way resulted in a flat drop. (Figure 10 shows our test setup.)

To allow us to scan the laptops identically, we

booted to Hiren’s boot CDs and installed the hard disk

scanning software to the Microsoft Windows mini XP

virtual machine’s RAMDISK. Running the scanning

software from RAM, we scanned the hard disk with HD

Tune Pro 4.01 and HDDScan for Windows 3.2, and

recorded the number of bad sectors and blocks before

and after the drop test. We also recorded any other

physical defects, such as cracks or breaks in the display,

as well as separated hinges or displaced screws, which

the impact of the drop caused. Refer to Appendix D for

the drop-test checklist. We took still photographs of the

laptops before and after each drop. We dropped each

laptop three times (unless the system failed to boot after

a drop), using this process:

1. Install MAXON CINEBENCH R10 onto the test

laptop, as we outline above.

2. Run EFD Software’s HD Tune Pro 4.01 and

HDDScan 3.2 to get baseline data on the state of

the hard disk. Boot the system using a Hiren’s

BootCD disc.

a. Install HD Tune Pro 4.01:

i. Insert a USB flash drive containing

the HD Tune Pro installation executable, and click once on My Computer.

ii. Navigate to the USB drive, and double-click the hdtunepro_401_trial.exe installation file to install

the application.

iii. At the welcome screen, click Next.

iv. Click the I accept the agreement radio button, and click Next.

v. In the Select Destination Location window, click Browse.

vi. Click the RAMDisk drive once to select it, and click OK.

vii. Click Next in the next two windows.

viii. Leave check box empty for Create a desktop icon, and click Next.

ix. Click Install.

x. Leave the check box checked for Launch HD Tune Pro, and click Finish.

b. Run the HD Tune Pro 4.01 Error Scan:

i. Select the Error Scan tab.

ii. Click Start in the right hand pane.

Figure 10: Our physical data protection test setup.

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