Solaris V440 keeps crashing

Hi,

I have Sun Solaris V440, every two days or so, the system crashes and it's at OK prompt. After that I do the FSCK and clear all the bad sectors. Then system stays up for close to 48 hours. Then it crashes again. I checked the logs and I don't see anything under /var/adm/messages file.

How can I find what's wrong with the system?

Please advise. Thanks.

It appears you have a bad disk. New bad sectors do not magically appear on good disks over and over.

Make sure you have a good backup of a fresh

fsck

of the disk, then replace the disk, restore from tape or wherever....