General :: Ubuntu Server - Random Hard Drive Corruption

So I built a new system few months to act as a development/"mess around with" server with an Asus Mobo and a Q6600 processor and 8 gigs of ram. Along with file, web and app hosting, I also do some virtualization on it... or atleast I had hoped to.

Ever since the first install, I've been randomly getting crashes and lockups. Sometimes it would just dump an error to the screen but stay alive, and sometimes it would dump an error and then lock up fully. The error mentions something about "kernel not tainted" etc. I will post the detailed error once it comes up again, as I have just formatted it again.

Other problems include downloaded files becoming corrupt. Files downloaded through any means (wget, torrents, ssh, ftp etc.) seem to randomly get corrupted (ie: the hashes are wrong).

I currently have one WD 150GB raptor as my primary OS partition, and 3 WD 1TB greens as my storage in an mdadm raid 5 array. At first, I had thought it was the raid array or it's drives causing issues. After painfully transfering the data off of it, I took the drives out and tried to run ubuntu with just the OS drive for a while. This still had the same issues. I then put in only one of the 1TB greens and had the same issue...

I downloaded WD's hardware diagnostic tool and ran full scans on all the drives. They all check out fine.

I left memtest running overnight and it had no errors either.

Most recently, ubuntu would not even install. It would get stuck at the stage of partitioning, and the keyboard lights would flash. After much googling, I tried popping in "noapic nolapic" to the end of the grub string, and it managed to install.

Now, I'm in a fresh system and just wgetted vmware server. However, it wont untar, I just realized the MD5 hash doesn't match!

So definately not the memory or the hds... I'm assuming it has to do with the APIC? From what I found on google, it seems as though this is only needed for the install.

Do I really need this to be on the boot string too? From what I understand, APIC allows processes to be divided out to the least loaded CPU. Having a quad core, I'd rather leave this on since it seems somewhat beneficial... I have yet to try putting this into the grub yet since I'm offsite and need

As a side note, this latest install is using just the WD Raptor as an OS drive.

And I'll post up the dumped errors if I get them again. There were none dumped out when the vmware download corrupted. The message format is very similar to the one here: [url

However, sometimes it mentions ext3 (or one of the other filesystem types I had tried with thinking it was a problem with ext3) Again, the error message is not the EXACT same, however the format is very similar...