Hard drive cycling on and off

[klm39]

I just bought my HP 400y from Best Buy in December. It has been running fine but over the last week it has been acting strange. The hard drive comes on and off constantly. You can hear it cycling over and over. It sounds like a fan turning on and off. I checked it for dust but there was none. I don't know what to do to fix it. Can anyone help?

[wb2001]

Silly question, did you really open the case, or is this an observation from outside. I ask, as hard drives do not have a dust issue. (Yes, hard drives have a mircon filter, but that is not an issue).

Are you sure it's the hard drive? Holding the hard drive, can you feel it cycling off?

What manufacturer, model, and firmware revision. There are Seagate 7200.11 and 7200.12 with problems. But, that machine is Aug2010 circa. HP should not have any of those drives still on the shelf.

HP's warranty is 1 yr, and you pay shipping to HP and back..... $100 avg.

[TEDUinManila]

May I join your conversation please.I'm interested to help and share some

experience.
  It is my experience that my customers call the same thing in so many ways. I believe the "Hard drive" mentioned here
is the same thing as what other people call "the tower" usually in North America,"the CPU" in Southeast Asia,and "hard drive" in Australia and New Zealand.. It is actually the computer itself, that which we computer geeks call the CPU chassis , where the motherboard and the HDD is contained.  

   Just another thing like "grounding" in the USA,and Philippines, as "earthing" in the UK and the Commonwealth countries.By the way,in Australia they call the US and Phil "power outlets" as "powerpoints".Please don't confuse

that with the MS Office software. In the UK,they call it "AC MAINS".
Best Regards
TEDUinManila

[kajuntiger]

make sure its not your cd/dvd drive cycling