Transfer speed of SATA2 on PCI-Express - TechRepublic
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May 5, 2009 at 06:43 PM
theonlyrick

Transfer speed of SATA2 on PCI-Express

by theonlyrick . Updated 17 years, 2 months ago

Hi – This one’s for any hardware guys out there…

I recently installed a PCI-Express SATA card, it says it’s 3GB/s. I also have onboard SATA (which I thought was the old SATA v.1 – 1.5GB/s)

Copying a 4 GB file to an internal PATA drive took 2 minutes using the onboard SATA. Using the PCI-e SATA card, it took five minutes-ish (and the progress bar was all over the place).

Is this typical? Even if they were the same SATA version, I wouldn’t expect the PCIe card to take twice as long as the onboard SATA controller.

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