Hello all and season's greetings. I have a system which has 5 hard disks connected. Three are IDE and two are SATA. The IDE disks are performing fine but the SATA disks are a problem. I've had various issues with them ranging from being unable to write to them both disappearing from the system without even an error. Sometimes I do get an error though. I had this motherboard & CPU pair working in a Windows XP box for a few months without issue. I say that hesitantly because there are a few brain cells murmuring in the back of my head but I can not find them to learn more. Could this be a flaky SATA controller? Could it be some BIOS setting that needs tweaked? Or... As always, any help would be appreciated. The system information is as follows: Fedora Core 6 uname -a = Linux www 2.6.22.14-72.fc6 #1 SMP Wed Nov 21 15:12:59 EST 2007 i686 i686 i386 GNU/Linux Motherboard: ASRock 775Dual-vsta Chipset: VIA® PT880 Pro/Ultra Chipset CPU: Intel Pentium D 915 Presler 2.8GHz LGA 775 Dual-Core Processor Model BX80553915 Hard Drives: Western Digital Caviar SE16 WD5000AAKS 500GB 7200 RPM SATA 3.0Gb/s Below is an example of an error message: Dec 23 12:14:41 www kernel: sd 0:0:0:0: [sda] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK Dec 23 12:14:41 www kernel: end_request: I/O error, dev sda, sector 58654863 Dec 23 12:14:41 www kernel: Buffer I/O error on device sda1, logical block 7331850 Dec 23 12:14:41 www kernel: lost page write due to I/O error on sda1 Dec 23 12:14:41 www kernel: Buffer I/O error on device sda1, logical block 7331851 Dec 23 12:14:41 www kernel: lost page write due to I/O error on sda1 Dec 23 12:14:41 www kernel: Buffer I/O error on device sda1, logical block 7331852 Dec 23 12:14:41 www kernel: lost page write due to I/O error on sda1 Dec 23 12:14:41 www kernel: Aborting journal on device sda1. Dec 23 12:14:41 www kernel: sd 0:0:0:0: [sda] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK Dec 23 12:14:41 www kernel: end_request: I/O error, dev sda, sector 56475719 Dec 23 12:14:41 www kernel: Buffer I/O error on device sda1, logical block 7059457 Dec 23 12:14:41 www kernel: lost page write due to I/O error on sda1 Dec 23 12:14:41 www kernel: sd 0:0:0:0: [sda] READ CAPACITY failed Dec 23 12:14:41 www kernel: sd 0:0:0:0: [sda] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK Dec 23 12:14:41 www kernel: sd 0:0:0:0: [sda] Sense not available. Dec 23 12:14:41 www kernel: sd 0:0:0:0: [sda] Write Protect is off Dec 23 12:14:41 www kernel: sd 0:0:0:0: [sda] Asking for cache data failed Dec 23 12:14:41 www kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through Dec 23 12:14:41 www kernel: journal commit I/O error Dec 23 12:14:41 www kernel: ext3_abort called. Dec 23 12:14:41 www kernel: EXT3-fs error (device sda1): ext3_journal_start_sb: Detected aborted journal Dec 23 12:14:41 www kernel: Remounting filesystem read-only Dec 23 12:15:13 www kernel: Buffer I/O error on device sda1, logical block 2 Dec 23 12:15:13 www kernel: lost page write due to I/O error on sda1 Dec 23 12:15:13 www kernel: Buffer I/O error on device sda1, logical block 7045120 <snip> -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.