Hi,
Thanks for replay.I have RB44 with VIA chepset.
(VIA Technologies, Inc. VT6105 [Rhine-III] (rev: 134) Vendor ID 0x1106 Device ID 0x3106)
I was check 2 RB44 on two RB230 and it was the same !!
I guess i found the problem. I was do several things.
1- change the bios battery backup.
2- set pci-back off (i don't know what's this mean ?
) to disable in bios (default is enable)
3- set cpu mode to normal (default is power save)
until now i have 23 hour without any reboot.
Best Regards
Ali