http://en.wikipedia.org/wiki/Dell_MediaDirect
Be very careful when considering disk imaging on hard drives with this HPA crap on them.
http://en.wikipedia.org/wiki/Host_protected_area
Dell really try their best to limit people to using *Dell* for support.
For example, you can use a universal PSU to power a Dell laptop, but it won't charge it. Dell has an extra conductor in the power cable where the OEM Dell charger sends a signal saying "I'm an official 65W Dell PSU".
It adds to safety so you don't blow up a 65W charger with a 90W laptop, so the laptop will just draw a small amount of power, but it means universal PSUs can not be used. (until they come with a hack to trick the Dell laptops)
And the story of "we don't want to blow up small PSUs so we just run in low power mode and don't charge the battery" is not 100%, because it doesn't even charge the battery (even slowly) when the laptop is off.
Its more like a *Dell Enforcement* technique.
I think I'm gonna steer away from Dell if possible.
Be very careful when considering disk imaging on hard drives with this HPA crap on them.
http://en.wikipedia.org/wiki/Host_protected_area
The chosen approach causes disk geometry to be deliberately misreported, can prevent the successful backup of hard disks and may trigger catastrophic data loss when MediaDirect is launched.
Unless the drive and all pre-existing operating systems are left as originally installed, MediaDirect can trigger a forced repartitioning of the drive whilst attempting to load. This intervention typically causes the loss of all operating systems and data on the device. Removing or disabling the application is challenging because Dell employs Host protected area technology to cloak the location of the partition containing the software, contributing to the misreported disk geometry.
Dell really try their best to limit people to using *Dell* for support.
For example, you can use a universal PSU to power a Dell laptop, but it won't charge it. Dell has an extra conductor in the power cable where the OEM Dell charger sends a signal saying "I'm an official 65W Dell PSU".
It adds to safety so you don't blow up a 65W charger with a 90W laptop, so the laptop will just draw a small amount of power, but it means universal PSUs can not be used. (until they come with a hack to trick the Dell laptops)
And the story of "we don't want to blow up small PSUs so we just run in low power mode and don't charge the battery" is not 100%, because it doesn't even charge the battery (even slowly) when the laptop is off.
Its more like a *Dell Enforcement* technique.
I think I'm gonna steer away from Dell if possible.
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