Hey I think I might have a similar problem. This is my first post on Toms and didn't know where else to turn to. Been trying to fix this 24/7 for the past few days.
I got a ga-p35-ds3l with e6550.
2 SATA HD, 1 that has XP (I wanna install vista now)
2 ATA HD, 1 Hooked up. until i get the IDE cable with the xtra connector
1 pioneer dvr-111d.
I set one of the SATA to first disk boot priority but set the cd-rom as first boot device. I put vista in but it won't boot. I'm not sure if its bios settings or something but I've just been frustrated lately because I've tried everything.
Further info: I've set the IDE HD as master and the cd-rom as slave. So jumper settings are right. If i disconnect the IDE HD and the sata without OS on it, then it always gives me disk boot failure when i try to boot disc in cd-rom.
However If i connect everything together then sometimes it will load to desktop but whenever I use it, it will randomly blank screen and cpu usage will strike for no reason.
Drive is not faulty because I tried with a different cd-drive. same errors. Not faulty HDs either because I've tried to set other HDs as first priority so maybe I can install OS to there. Still no luck.
Really need and will appreciate the help. Thanks in advance.