The reason Windows wants to run CHKDSK is because the filesystem has some flags set that indicate the drive needs to be checked (usually unsafe/unclean shutdowns can cause this, but some other situations can as well).
I think this drive has some kind of mechanical problem. I've never seen a drive read all LBAs on a drive without any errors, then a few hours later begin exhibiting what you see above. The issue is not related to bad drive cache either -- it's definitely something mechanical.
My initial guess would be a misaligned head or something of that nature. Substrate problems are unlikely given the low number of power-on hours on the drive and would have shown up sooner in the drive's lifetime. There's nothing I can do aside from what I've already done WRT this drive.
My advice at this point is to RMA the drive. Don't mess around any longer with it -- just RMA it. Western Digital can/will have a fun time figuring out what's causing problems with that one. -- Making life hard for others since 1977. I speak for myself and not my employer/affiliates of my employer.
As predicted, the drive is getting worse. Some remaps didn't even work (also indicated by the write error rate), others did, and there are still even more pending. RMA away!
For Advanced RMAs, WD often marks up the cost of the drive by 2-3x compared to retail. This is to protect them in the case they never receive the bad drive within 30 days. For example, a WD10EFRX (WD Red 1TB) warrants a potential charge of US$250, which is roughly 3x higher than the retail price. They only charge your credit card if they do not receive the bad drive. -- Making life hard for others since 1977. I speak for myself and not my employer/affiliates of my employer.
Ok it passed memtest, seems like while the memory was seated pressing down on it made it work, this case has to be one of the cheapest cases I've ever seen.. every friken panel on it flexes, the side panels feel like a sheet of paper..
I'm going to take the memory sticks out but support the back panel with something since that flexes like crazy..
Also remember that hard disk "issues" can manifest themselves in a way most people don't expect: depending on how software (whether it be drivers or applications, doesn't matter) handles I/O errors (specifically files which can't be read due to "suspect" LBAs), some may just silently continue onward with no error handling. The end result, more often than not, is a piece of memory that was used to read the file contents containing random data (or zeros if they use memset() or calloc()), and the software treating that data as if it were correct.
This is why with hard disk issues, the first thing I do is replace the hard disk + reinstall the OS (or do a full bare metal restore from backups).
Glad you at least tracked it down to something physical though. Hooray PC hardware. *cough* -- Making life hard for others since 1977. I speak for myself and not my employer/affiliates of my employer.
I was going to say, the issue in the first post was indicative of something other than the hard drive. The DVD/hard drive activity LEDs flashing like that is the PC rebooting itself rapidly, pre-POST.
I had an HP PC at work act similarly recently, it would eventually settle down and POST after being left on for a couple of minutes. It ended up being a faulty power supply (12v rail was pretty high but I'm not sure if that was the exact cause). The hard drives acted pretty spastic as well until the power supply was replaced. -- KI6RIT
I checked it with my meter and I got 12.3 on the 12V rail, I tried to get almost everything installed before leaving for work but I wont be able to install the anti virus program until I get back home later today.
Also I had a motherboard go out, it was a gigabyte, about a week before it started doing crazy things like being slow, hanging up.. well one day it finally died, when you powered on all it did was make a low tone continuous tone, it ended up taking out one of my samsung hard drives along with it but not the 2nd one. -- It's NOT Ni-kon It's NE-KON!