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Amiga computer related discussion => General chat about Amiga topics => Topic started by: Hodgkinson on January 26, 2008, 09:54:01 AM

Title: Need help with Micro$oft and UDMA
Post by: Hodgkinson on January 26, 2008, 09:54:01 AM

Hope you guys can help,
Its my main PC and im kinda stuck with it in bits. I hope admin dont mind this "Link" thread.

Link to thread (http://www.amiga.org/forums/showthread.php?t=34086)

Hodgkinson.

Title: Re: Need help with Micro$oft and UDMA
Post by: meega on January 26, 2008, 10:19:20 AM

Google search (http://www.google.co.uk/search?hl=en&q=registry+hack+to+make+the+system+redetect+the+UDMA&btnG=Google+Search&meta=)

Result number 5 (http://sniptools.com/tipstricks/getting-back-to-dma-mode-in-windows-xp)

Comment by "Stark" in that thread (http://sniptools.com/tipstricks/getting-back-to-dma-mode-in-windows-xp#comment1891)

Any help?

If not...

3005 diggs (http://digg.com/hardware/Little-Known_Tweak_to_Boost_Hard_Drive_Performance!)

What they dugg (http://neodon.blogspot.com/2006/07/little-known-tweak-to-boost-hard-drive.html)

 kengineer on 07/03/2006 (http://digg.com/hardware/Little-Known_Tweak_to_Boost_Hard_Drive_Performance!?t=2175546#c2175546) pointed to a Microsoft KB article (http://support.microsoft.com/kb/817472/)

Title: Re: Need help with Micro$oft and UDMA
Post by: Hodgkinson on January 26, 2008, 10:46:56 AM

Very useful - Thanks!

Im not trying to get PIO to go to DMA, rather im trying to make the system use the correct DMA mode that it is capable of (The BIOS says UDMA4 whilst XP says UDMA3).

And then there were the days when you could just plug in, errr, say a Blizzard 1230IV and it just works instantly! :roll:

Title: Re: Need help with Micro$oft and UDMA
Post by: meega on January 26, 2008, 10:51:33 AM

From the KB article

Quote

WORKAROUND
To re-enable the typical, or faster, transfer mode for an affected device:
1.   Double-click Administrative Tools, and then click Computer Management.
2.   Click System Tools, and then click Device Manager.
3.   Expand the IDE ATA/ATAPI Controllers node.
4.   Double-click the controller for which you want to restore the typical DMA transfer mode.
5.   Click the Driver tab.
6.   Click Uninstall.
7.   When the process completes, restart your computer. When Windows restarts, the hard disk controller is re-enumerated and the transfer mode is reset to the default value for each device that is connected to the controller.

Title: Re: Need help with Micro$oft and UDMA
Post by: Hodgkinson on January 26, 2008, 10:59:36 AM

Ta.

Just going for a cuppa  :lotsacoffee: and I'll give it a try! Thanks!