UDMA/66 in WindowsNT Revisited

[jkersenbr]

<edit>I'm still trying to make this work, please read my current reply.</edit>

I just installed NT4.0 Workstation on a system at home. My first installation of NT -- Win98 just wasn't worth re-installing again. And W2K takes a faster system than this one.

Anyway, the newest service pack I had access to without downloading (boy am I craving BROADBAND!) was SP3.

What is the best way to make UDMA/66 work from here? Will going and getting the current SP6a do it? Or do I need to get SP5 first and then get 6a? Any patches other than the SP's I need to get?

Thanks for any info.

 

[NT4Mike]

All the info you will need to know is right here. I don't think that you need to have SP5 as they state in their article. If I remember correctly, SP4 included DMA support as well. Either way, get SP6a.

-Mike

 

[jkersenbr]

Thanks for the info NT4Mike, but I can't make it work.

Here's what I've done:

- Installed SP6a (actually a painless install, but my system takes a minute longer to boot now)

- Ran a disk benchmark for reference.

- Obtained and ran DMACHECK from MS enabling DMA

- Ran disk benchmark again -- no difference.

- Did the registry hack provided in the link in NT4Mike's post.

- System wouldn't boot.

- Restored registry. Now DMA is &quot;enabled&quot; but not working.

My hardware is definitely UDMA capable. Any ideas? 4MB/sec transfer rates using 82% of CPU seems a little ridiculous.

 

[jkersenbr]

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^^^^ Get on up there so some NT guru can help!
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[jkersenbr]

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