Some users complains that their HDD LED indicator stays on all time. This problem can be an indication of a Virus Attack or a Hardware problem. Let’s find out how to diagnose it.
First you have do a complete virus scan, check if your Antivirus caught any Virus or Spyware. Take the appropriate steps to heal the infections. After this restart your system and check your HDD LED. Does it shows the same problem. If your answer is YES this may an indication of some Hardware problem.
The next step is go to BIOS check the Hardware Monitor page which shows the power levels to your system. Check +12v ,-12v, 5v etc. If you do not know the default power levels check with the booklet which comes with your motherboard or google it. If you find variations replace your SMPS with a working one. If it does not solve your problem you have to check the other devices installed in your system.
Remove all the devices except your Hard disk from your system(sound card, graphics card, Lan card, CD drives, DVD drives, Secondary Hard Disk etc).Connect your Hard Disk with a new IDE or SATA cable. After this boot your sytem ,check your HDD LED indicator.
If this solves your problem install the removed devices one by one and rule out the defective device.
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