48-bit LBA support driver

Hi, Foz.

Take a look at the following:
303013 How to Enable 48-bit Logical Block Addressing Support for ATAPI Disk
http://support.microsoft.com/?id=303013

Additionally, check out the Device Manager to update the driver.
I presume your BIOS will allow it since you're able to see it and have done
so before. However, from a performance standpoint, have you added any
device, like a CD-rom drive to the same cables as your HDs? Doing so could
cause a bottleneck.

--
Have a great day!

Graham, MCSE²+I, MCSA
Microsoft Corporation Exchange Enterprise Messaging

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"Foz Jones" <anonymous@discussions.microsoft.com> wrote in message
news:02e001c3d8c1$8e1a6c90$a401280a@phx.gbl...

> I have a driver in folder C:\windows\system32\drivers -
> description-5.1.2600.1106 (xpsp1.020828-1920) that
> previously showed up in my search for Atapi.sys, but it
> does not show up now and my 200gb hard drive work very
> poorly. The above driver is still in folder but I don't
> think it is working. It is needed to support 48-bit LBA.
> My 200GB H/D is running in DMA PIO mode, which is to slow
> to play video files from this H/D. My primary 120GB H/D
> is running in ultra DMA mode 5 and works fine. What do I
> need to do to reactivate above driver. Thanks Foz