Laptop HDD keeps breaking down

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Download and run "HDTune" - check results.

http://img813.imageshack.us/img813/8728/read.jpg
http://img560.imageshack.us/img560/626/healthl.jpg

The first one is normal.

Regarding the second, check the error scan and then you will see how many sectors are bad if any. The error scan is time consuming.

I know for a fact that there are 166 bad sectors and, as mentioned in the first post, this is the 3rd HDD that reaches a high count of bad sectors. What could be bad, the MB?

The motherboard is fine. Maybe you just got a bad batch of HDDs. Or, this PC has seen some unusual level of vibrations, bumps, knocks, etc. all of which are bad for the HDDs.

Low frequency vibrations can travel great distances; miles!

3 HDD in a row? I seriously doubt that. The HDD broke even when I held the laptop still, on my lap or on a desk, without moving it for a week or so.

Consider the marvels of modern day automated assembly. HDDs like other consumer products are assembled and tested on high speed automated assembly machines that utilize hard automation, robotics, lasers (welding, marking), and other pick-and-place mechanisms. When something goes wrong on the line, the entire batch of products will be bad; not just a few random assemblies. Some of these bad assemblies do slip past QA (that's why they have serial numbers, date codes, etc. for traceability). I am not saying that this is the case, but it is a definite possibility not to be ignored.

Case in point: A computer in the office was giving trouble. The guy from the contract repair service traced it to a bad PSU and replaced the PSU. The next day the same problems re-appeared. After a lot (excessive amount) of trouble-shooting, the repair guy identified the problems to a bad PSU that he had just replaced, and installed another new PSU. Same problems the next day.

The real problem (identified by the repair guy) was two bad defective new PSUs in a row. The third one (PSU) turned out to be fine.

In your case, buy a HDD of a different brand and try it. It is quite possible that the voltage supplied to the HDD in your computer is not within the prescribed range.

Wow. I have had at least 30 HDD's of various makes, models and sizes in my many desktops and laptops starting back in 1994, and honestly, I think only one failed on me in all that time. Bad luck dude. Yeah, I'd be trying a different make. My M1730 Dell has two 320GB Hitachi HDD's, and no problems that I know of - or maybe I'm not looking hard enough.

How can I check the voltages sent to the HDD? I couldn't find anything related to this in the bios.

On your laptop this is hard to do. Searching on the internet may provide answers. On a desktop we can check the voltages at the 4-pins Molex connector.

I can check in the HDD user manual but how can I see what are the actual voltages sent out to the HDD?

The HDD specs should list the HDD voltage, and that voltage must match the voltage supplied to it by the motherboard.

The things that are affect HDDs are:
1) Heat
2) Vibrations and impact forces in excess of design specs
3) Voltage (over or under specs)
4) Virus
5) Manufacturing defects (clearances between the heads and the platters, bad bearing supports)
6) Wear and tear through use
7) Unforeseen

And yet my question remains: how do I see the actual voltages?! (not the voltages in the HDD's specsl)

This is possible only by taking the computer apart and checking the voltage at the connector end. I DO NOT recommend doing this. Computer repair shops may have a connector that simulates a hard disk, thereby enabling them to check voltages.

Quit using Samsung Spinpoint hard drives..... :-/


That should fix your problem.

 

So there isn't any software that could indicate the voltages used? I already took the laptop apart and I have a voltmeter so, off I go. Thank you for your help.

Laptop hard drives all run on +5VDC

I contacted Dell support and they replaced the original 5400RPM, 320GB Samsung with a 7200 RPM, 320GB Seagate Barracuda. I sure hope this one will last. Thanks for the help.

Yes, for laptops, the Seagate Barracuda is a much better choice compared to Samsung.

Nice. I'd call that a warranty win. Dell does that quite often (upgrades a customer to something better) in warranty claims.