Am 03.03.2013 17:48 schrieb Andrew Goodbody:
On 03/03/13 14:28, Andrew Basterfield wrote:
I think I will have to re-cap the board to restore the 2nd CPU socket to eliminate this variable.
You say it is stable with one CPU using the Tyan BIOS so it is at least possible to use the board as is. There is certainly code in the S2895 devtree and mptable to allow for the missing devices caused by a missing 2nd CPU but I have no idea how well tested that is. How does it behave if you boot with ACPI disabled?
Can you try someting completely different? Make sure the total amount of RAM is 2 GB or less. Retry.
Failing SATA/USB was a symptom of some bug we hit on some AMD boards with configurations of more than 2 GB RAM a few years ago. Nobody ever managed to find out what was broken (the issue may also have fallen through the cracks in the big employment reshuffle which affected a few coreboot contributors back then). I simply gave up and used 2 GB.
If reducing the amount of RAM to 2 GB works for you, we can retry to debug this.
Regards, Carl-Daniel