Hello
My PC has crashed with a blue screen and the following error:
UNMOUNTABLE_BOOT_VOLUME

Can anyone help...Please!!!!
Thank you
Seamus

If that's a quote, the hardware information is wrong. An 80 wire ide ribbon
cable is required/mandatory for all UDMA66 / ATA66 hard drives, and those
faster.

UDMA100 / ATA100 hard drives cached data flow is just under the PCI delivery
rate of 33 MB/s. ATA133 exceeds that, and the standard PCI bus can't
deliver at the rate its being filled, so such a hard drive has to pause in
such a case. This rate of speed is from the onboard hard drive cache. Not
normal throughput, which is what's more likely to be used.

The 80 wire ide ribbon cable serves not only to prevent / diminish data
spread to other wires on that cable. But, also prevents / diminishes RF in
the PC enclosure around it. For the latter reason, one should be using this
type cable in any latter day PC for ANY ide device.
---
Jonny
"gmit IT Staff" <gmit IT (E-Mail Removed)> wrote in message
newsD6C791A-94FD-4F1B-8FCD-(E-Mail Removed)...
>
> Welcome > Part VII Appendices > Appendix C Common Stop Messages for
> Troubleshooting > Common Stop Messages
> Stop 0x000000ED or UNMOUNTABLE_BOOT_VOLUME
> The kernel mode I/O subsystem attempted to mount the boot volume and it
> failed. This error might also occur during an upgrade to Windows XP
> Professional on systems that use higher throughput ATA disks or
controllers
> with incorrect cabling. In some cases, your system might appear to work
> normally after you restart.
>
> Interpreting the Message
> This Stop message has two parameters:
>
> Device object of the boot volume
> Status code from the filesystem on why it failed to mount the volume
> Resolving the Problem
> The following suggestions are specific to Stop 0xED errors. For additional
> troubleshooting suggestions that apply to all Stop errors, see "Stop
Message
> Checklist" later in this appendix.
>
> If using higher throughput ATA disks and controllers, those capable of
data
> transfer rates above 33.3 megabytes per second, replace the standard
40-pin
> cable with an 80-pin cable. Using an 80-pin cable is optional for transfer
> rates up to and including 33.3 megabytes per second, but is mandatory for
> higher transfer rates. The additional grounded pins are required to avoid
> data loss.
> Some firmware enables you to force higher transfer rates even when you are
> using the incorrect cable type. Your firmware might issue a warning but
allow
> the startup process to proceed. Restore the default firmware setting for
ATA
> cable detection.
> Problems that cause 0xED errors might also cause Stop 0x7B errors. For
more
> information about 0x7B Stop messages, see "Stop 0x0000007B or
> INACCESSIBLE_BOOT_DEVICE" earlier in this appendix.
> For more information about Stop 0xED messages, see the Microsoft Knowledge
> Base link on the Web Resources page at
> http://www.microsoft.com/windows/reskits/webresources. Search using
keywords
> winnt, 0x000000ED, and 0xED.
>
>
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