I want to enable DMA on the disc drive: Optiarc BD-ROM BC-5500S.I have this on Hp Pavilion dv5z-1000 system with Vista 64 bit.
I have tried :
1)Removed drive and placed it back.
But the problem is as shown in the snap:
But I cant see anything in there.Attached is the image of Channel 0 .Same is the problem with channel1