I've been offline for a while because what should have been an easy computer upgrade has been 3 week nightmare. Hopefully someone may be able to help me figure out what is happening. I trust you guys more then the laptop manufacturer, Windows or the drive manufactured.
I have an Win7 64bit, i7 ASUS G73SW laptop with 2 hard drives. One drive setup for OS and Programs, the other set up for Data. I initially had replaced the factory drive (500GB WD Black Scorpio) with a 500GB Segate Momentus XT Hybrid for slight performance improvement. The original drive was used in slot drive HD1 for data. This worked very well for about a year and half. About 3 weeks ago I started getting a single click every 5-10 minutes from the drive area but everything seemed to still work ok but then I started getting BSODs and chkdsk error screens on start up for the C: drive. Thinking it was a sign of impending death, I replaced the C: drive (HD0) with a OCZ 240gb Vertex 3 SSD. (jumped Windows performance rating from 5.1 to 7.1!!) The first SSD drive pooched because of firmware problem but the retailer exchanged it for a new one. Got it working and windows re-installed. I still had the click coming from the the drive and then got the chckdsk error on start up for drive D. Figure it should be replaced so I purchased a WD 750gb Black Scoprio and installed. Still got the click? I did some research and found that WD drives have aggressive power management causing hard head parking every 8 seconds so I disabled it in the drive, disabled power management in Windows 7 but nothing worked. The drive would continue to work most of the time but then click like it was going into hibernation. Sometimes the drive would be dropped by windows and sometimes during events like backups. The click would cause failures in backups or large file transfers. Ran different HD utilities and saw no issue with the HD.
I began to think it was a hardware issue (SATA controller or Mother Board) and RMA'd the laptop with the factory drive back to ASUS for repairs. All they did was replace to original drive with a new drive (500GB Seagate Momentus) and re-imaged the drive.
I re-installed the SSD and the WD750gb but still got click issues. The clicks in the WD750gb also happened on while it was in a cradle so I got it exchanged at the retailer. The new drive was installed and it too clicks! Thinking its could be a problem caused by my SSD and my Windows setup, I re installed the factory system disk but it too had the click in the second drive. Strange thing is I tried a DOS based utility called Spinrite and it ran for a couple hours in DOS with no click at all which suggests to me its not a hardware issue. Seems to only happen while in the Win7. I checked the BIOS and drivers and they appear to be up to-date and re-ran HDD utilites. Anyways, for no reason at all I was able to get it to run, even with the click but no drive drops in Windows for most of the day so I transferred 100gb of data files from my original backup to the new drive. No problem. Once finished, I decided to do a back up of the new drive but then the click caused the backup to fail and then the drive was dropped from windows resulting in me having to re-scan it. This dance continued for a few hours before I gave up and got a wobbly pop.
A day later, I was finally able to get a back up. Not sure why but I'll take it.
Today I'm running a deep scan with Spinrite and its been running in DOS with no clicking for over an hour.
I'm completely baffled as to what is causing this and how to fix it. Its like my laptop is being held together with Duct Tape and spit. Its working but for how long I don't know.
Right Now, since beginning what should be a simple upgrade here is what works and doesn't while using Windows 7
HD0 - 500gb Segate Momentus (factory) = No problem
HD0 - 240gb OSZ Vertex 3 SSD = No problem
HD0 - 240gb OSZ Vertex 3 SSD + HD1 - 750GB WD Scorpio Black #1 = click
HD0 - 240gb OSZ Vertex 3 SSD + HD1 - 750GB WD Scorpio Black #2 = click
HD0 - 240gb OSZ Vertex 3 SSD + HD1 - 500GB WD Scorpio Black (original Data drive before RMA replacement) = click
HD0 - 500gb Segate Momentus (factory) + HD1 - 750GB WD Scorpio Black #2= click
plus the orginal configuration:
HD0 - 500gb Segate Momentus XT (original OS drive) + 500GB WD Scorpio Black (original Data drive) = click
Common problems:
1.) WD drives in HD1 slot are causing a click.
2.) Click happens while in Windows 7 and not in DOS.
Any of you guys who build your own systems have any idea what could be causing this? Any suggestions would be much appreciated. I'm going crazy with this.
Sorry for the long post.
Thanks

. Good thing I have a backup safe and sound on my home server which is staying there until the gremlins are expelled from my system.
Oh, New Egg is in Canada now!