I updated BIOS to F4 version, messages the same; I attached this time
logs from Beta LiveCD; this time stable without messages from system
about errors and possible unstability; I saw additional lines about
Error Correction and Detection Code before known messages, and please
see those logs, anyone see something else ;-)

                                                                         EDAC 
MC: Ver: 2.1.0 Sep 25 2009
Oct 25 02:16:08 ubuntu kernel: [   71.567175] ACPI: I/O resource piix4_smbus 
[0xb00-0xb07] conflicts with ACPI region SOR1 [0xb00-0xb0f]
Oct 25 02:16:08 ubuntu kernel: [   71.567179] ACPI: Device needs an ACPI driver
Oct 25 02:16:08 ubuntu kernel: [   71.567195] piix4_smbus: probe of 
0000:00:14.0 failed with error -16
Oct 25 02:16:08 ubuntu kernel: [   71.838504] EDAC amd64_edac:  Ver: 3.2.0 Sep 
25 2009
Oct 25 02:16:08 ubuntu kernel: [   71.841047] parport_pc 00:09: reported by 
Plug and Play ACPI
Oct 25 02:16:08 ubuntu kernel: [   71.841099] parport0: PC-style at 0x378, irq 
7 [PCSPP,TRISTATE]
Oct 25 02:16:08 ubuntu kernel: [   71.845792] EDAC amd64: This node reports 
that Memory ECC is currently disabled.
Oct 25 02:16:08 ubuntu kernel: [   71.845797] EDAC amd64: bit 0x400000 in 
register F3x44 of the MISC_CONTROL device (0000:00:18.3) should be enabled
Oct 25 02:16:10 ubuntu kernel: [   71.845799] EDAC amd64: bit 
0x0000000000000010 in MSR 0x0000017b of node 0 should be enabled
Oct 25 02:16:10 ubuntu kernel: [   71.845801] EDAC amd64: WARNING: ECC is NOT 
currently enabled by the BIOS. Module will NOT be loaded.
Oct 25 02:16:10 ubuntu kernel: [   71.845802]     Either Enable ECC in the 
BIOS, or use the 'ecc_enable_override' parameter.
Oct 25 02:16:10 ubuntu kernel: [   71.845803]     Might be a BIOS bug, if BIOS 
says ECC is enabled
Oct 25 02:16:10 ubuntu kernel: [   71.845803]     Use of the override can cause 
unknown side effects.
Oct 25 02:16:10 ubuntu kernel: [   71.845824] amd64_edac: probe of 0000:00:18.2 
failed with error -22


** Attachment added: "kern.log"
   http://launchpadlibrarian.net/34342020/kern.log

-- 
EDAC amd64: WARNING: ECC is NOT currently enabled by the BIOS. Module will NOT 
be loaded.
https://bugs.launchpad.net/bugs/422536
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