PIO- mode

[negerhenriksen]

Har en 40 gb, 60gxp ibm disk som jeg ikke klarer å kjøre udma mode, den kjører bare PIO-mode...hva kan jeg gjøre ?

[skol]

Hei,

 

jeg fant dette på en nettside, husker ikke hvilken, men fremgangsmåten virker.

 

This is mainly for XP users but is informative to all. 
I recently found out why my ripping speed seemed to be slow even though I was using a Artec 16X DVD drive and thought this might help some of you. There seems to be a problem with Windows XP Pro where it does not detect CD or DVD ROMs correctly for PIO and DMA. DMA is the idea mode and stands for Direct Memory Access. It does not use near the processor power as PIO and there for will rip faster. You can check your speed easily by ripping some stuff with DVD Decrypter or Smart Ripper. If you are sure your drive is DMA but XP seems stuck on PIO. First check in device manager under IDE controllers that you have it set to "DMA if available" for your DVD Rom. If you reboot and recheck and it is still stuck on PIO which mine were then go to run and type in regedit. Find the following key: 

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\000X 

000X "X" being the number of the controller such as 0001 for primary and 0002 for secondary. Under this location find the key "MasterIdDataCheckSum" or "SlaveIdDataCheckSum" depending on which one your drive is and delete the value for the key. this will force XP to redetect your drive after reboot. Please be careful when editing your registry. 
I have gotten both of my XPs running in DMA mode using this methode and on a single layer DVD I can easily hit 10X or higher. In PIO mode I could only hit 2X. That is a big difference and since both of my XP Pros had the problem I would guess it is very common. I hope this helps some of you. 
321 - Out standing job on 1.4. 

-=Enjoy=- 
Halftech

[KAS]

Tungvindt. Når man først er i enhetsbehandlinga er det mye enklere å bare høyreklikke på IDE-kanalen som kjører en DMA-kompatibel enhet i PIO-modus, og velge Uninstall.