SATA drive 0 works as PIO only 2

[euston]

In the properties of Primary IDE channel of IDE ATA/ATAPI controllers advanced settings, the transfer mode for device 0 is PIO. Device type 0 is Auto Detection. I want to make this SATA drive be recognised as Ultra DMA capable. Any ideas what I should be prodding?

Owzat! On ya way, back to the pavilion!

 

[linney]

Are the relevant settings in the Bios correct for Sata? Is the hard drive connected correctly?

DMA reverts to PIO

http://winhlp.com/node/10

http://www.google.com.au/search?hl=...rd+drive++PIO+only&btnG=Search&meta=&aq=f&oq=

 

[kjv1611]

Yeah, I'd check the BIOS settings for sure.

Also, did this just occur on an already used drive, or is it a new drive? Or have any changes been made at all before you noticed this, at least?

If it's a new drive, or newly used drive, I'd also take a look at the jumper settings (rare), but there are some that limit speed, size, etc, so I'd wonder if one (not 100% sure) could force a drive to operate in PIO mode when operating in IDE mode..

Also, you could try setting it to one of the non-IDE modes just to see if any difference - well, so long as you can still access the drive doing it this way. Worth a shot..

 

[kjv1611]

One other thing to check as well. If you've got an extra SATA cable, it wouldn't hurt to try swapping it out. It sounds a little odd for this to make a difference, but so does having to even think about UDMA vs PIO for a SATA drive.

 

[BadBigBen]

This happens when the SATA mode is set to LEGACY or COMPATIBLE in the BIOS, and Windows XP sees the drive as IDE and when XP detects more than 6 errors in DMA it reverts to PIO as the transfer speed, to ensure that you can still access the data....

to get around this, you either follow Linney's first link or set the SATA mode to AHCI and do a repair install with the F6 driver floppy at hand...

since you did not mention the chipset of the controller, thus I can't tell you how to change the mode internally (XP)...


Ben
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