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I consistently lose one of my two SATA drives (one SSD, one HD) after (almost?) exactly one hour. Doesn't matter if the computer is at idle or the disk is being written to frequently. The machine is dual boot and the behavior is the same in Windows 7 and Ubuntu 10. Seems to be whichever port is closest to the top of the machine. The drive will disappear and will not remount until I do a hard (power cycling) reboot. Both drives appear to be fine.
I don't see anything in the BIOS that would do this, but 15 times in a row at between 58 and 62 minutes (maybe exactly 60) is some setting somewhere, isn't it? It's an ASUS mobo, AMI BIOS, Marvell controller for the 6GB port, but the phenomenon also happens when both drives are plugged into 3GB/s ports.
What drives are they? – None – 2012-08-20T21:53:57.357
One is a Western Digital Caviar Black (the HD). The SSD is a Crucial M4. Right now, the SSD is on the 6 GB/s port and drops out. I think if I swap the ports, I also swap which goes away. At least, that was true when both were on 3 GB/s ports. – Andrew Lazarus – 2012-08-20T22:01:57.983
Have you checked your BIOS updates? – None – 2012-08-20T22:02:34.567
Seems to be most recent, but I will double check. – Andrew Lazarus – 2012-08-20T22:33:39.803
What's the exact motherboard model ? As if you have a Marvell 812X on board, they're famous for this kind of problems. – don_crissti – 2012-08-23T22:32:51.400
@don_crissti - Asus P6X58E Pro. – Andrew Lazarus – 2012-08-23T23:09:49.790
Here is a topic discussing some similar issues: link
– don_crissti – 2012-08-23T23:33:39.277