You're using an external hard drive via a USB 2. That would explain a lot. The USB 2. If you are transferring a lot of data, the back-up will take time. Browse Community. Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Search instead for.
Did you mean:. Last reply by jackshack Unsolved. Larry Rood 3 Argentum. Setting hard drive to dma mode in Windows 7. Any help will be appreciated. All forum topics Previous Topic Next Topic. Replies 7.
Dell Forum member since Nice informative article from you. It is valuable one. What happens if no entry shows anything with "channel"? But, if I don't install those drivers and let Windows to install some default drivers instead , its okay, I can finally see ATA channels. If you already installed your CD drivers, just right click "Intel We believe in providing quality content to our readers. If you have any questions or concerns regarding any content published here, feel free to contact us using the Contact link below.
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Windows 7 is an operating system created by Microsoft to be installed on computers and laptops. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Drive-by DMA attacks can lead to disclosure of sensitive information residing on a PC, or even injection of malware that allows attackers to bypass the lock screen or control PCs remotely.
PCI devices are DMA-capable, which allows them to read and write to system memory at will, without having to engage the system processor in these operations.
These devices have historically existed only inside the PC chassis, either connected as a card or soldered on the motherboard. Access to these devices required the user to turn off power to the system and disassemble the chassis. It allows users to attach new classes of external peripherals, such as graphics cards or other PCI devices, to their PCs with a hot plug experience identical to USB. Drive-by DMA attacks are attacks that occur while the owner of the system is not present and usually take less than 10 minutes, with simple to moderate attacking tools affordable, off-the-shelf hardware and software that do not require the disassembly of the PC.
A simple example would be a PC owner leaves the PC for a quick coffee break, and within the break, an attacker steps in, plugs in a USB-like device and walks away with all the secrets on the machine, or injects a malware that allows them to have full control over the PC remotely. Peripherals with DMA Remapping compatible drivers will be automatically enumerated, started, and allowed to perform DMA to their assigned memory regions.
By default, peripherals with DMA Remapping incompatible drivers will be blocked from starting and performing DMA until an authorized user signs into the system or unlocks the screen. By default, peripherals with DMA remapping compatible device drivers will be automatically enumerated and started.
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