Hard drive only runs in PIO mode

[Freosi]

My primary IDE (hard drive) is in PIO mode, I have tried uninstalling it and reinstalling and also everything in the article http://winhlp.com/node/10. It is set to 'DMA if available' as it should be. All drivers are up to date

I have found that I get 5 atapi timeout errors and 1 atapi controller error (6 in total), which I guess are causing the fallback to PIO. They occur on installation of the primary IDE, I don't get them on normal startup.

I have downloaded the Western Digital diagnostics software but that has shown up nothing unusual, and there are no known issues with this hardware.

Please help anyone, I'm desperate as I can't use my Computer for what I need it for!!

I am a beginner, here are the specs that I know about

HP Compaq ze4200
Win XP SP3
2.2Ghz Celeron M
MB - Hewlett-Packard 002A NS570 Version PQ1A78
1Gb Ram 333MHz
160Gb Western Digital HDD

 

[Cromewell]

What kind of cable do you have connecting the drive? You'll want an 80wire one, the old 40wire ones can't run at the higher speeds.

 

[Freosi]

The harddrive that I replaced ran fine in DMA mode so I think the cabling should be fine.