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Hard disk stuck in PIO

G

G|ass

Guest
#1
If your hard disk drive is stuck in PIO when it is capable of DMA, how do you fix that if when you go to Device Manager>IDE/ATAPI Controllers>Primary IDE Channel>Advanced "DMA if available" is greyed out? I know there is something you can edit in the registry to make your PC recheck your drive's DMA capability to fix this problem, but I don't know where or what to edit exactly. Anyone know? Thanks.
 

rushm001

In the beginning......
Political User
#2
I get something similar with a DVD-ROM Drive. Don't know how to fix it though. Would like to know though.
 
#4
Hey i like the easy ones:D

This is one of my old ones ....if you are using Win XP.

Open REGEDIT and find the following keys:

HKEY_LOCAL_MACHINE\SYSTEM\currentcontrolset\control\class\ {4D36E96A-E325-11CE-BFC1-08002BE10318}\000x

Last four digits are likely 0001, 0002. Under those keys you will find MasterIDdataChecksum, SlaveIddataChecksum. Delete the value corrosponding to your drive.It will make th OS redetect the drive DMA capabilities after rebooting.

Hope it helps
 

Gus K

NTFS abuser
#6
It may mean that at some point (assuming it wasn't always that way) there was a problem causing XP to throttle it down to PIO.
 

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