Got the exact same problem ...
This is a very interesting thread for me. I also bought a new PC consisting of the following components:
- Intel DG965WH motherboard
- 2GB PC667 DDR2 memory
- 2 Seagate SATAII 250GB harddisks
- 1 Samsung DVD player
- 1 Samsung DVD writer
- Sparkle 7600GT videocard
Under XP my player is locked into PIO mode and unusable, however: the DVD writer is behaving correctly. Both are PATA drives btw.
I have tried everyhting I can think of:
- Switched the drives physically on the IDE cable
- Switched master/slave
- Different versions of firmware on the drives
- Newest firmware on my motherboard
- Only connect the player
- Registry hacking as mentioned at a link in another post here
- Installing every driver for the motherboard I could find
- Not installing every driver I could find
- Changing BIOS settings from SATA IDE to SATA AHCI to SATA RAID mode
- Several reinstalls of XP
- Etc. etc. etc.
Nothing, but absolutely nothing worked. There was however two instances where it DID work: The first one was after I installed Vista. Both DVD drives behaved as they should. But I cannot keep Vista, because I borrowed it just for testing this DVD problem. The second one was when I put an three year old DVD player as a replacement into the system. But I do not want to keep that one, because, well, it is old ...
I notice a few common denominators here with everyone having this problem: a Core2Duo processor, a nVidia videocard in the 7 series and SATA(II) harddisks. But I have no clue where to look beyond that.
It would make me very very very happy if anyone can come up with a solution for this, because it frustrates me a little that my shiny new PC shows this nagging problem.
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