computer suddenly gives empty activity

Usually if the computer can not be turn on and without a beep sound,it may be caused by the memory bank,usually the memory bank is a little loose so if it comes to me I can open my box and take out the momory bank from the mainboard,then I will brush the golden finger of memory bank with my eraser and plug it to the mainboard again fastly. If the PC still can not open again then I have no choice but just go to the repair store and have a check.

Hi, I don't get the "indirectly" in unplugging the power, but I do understand that you have unplugged the power source for the HDD, for whatever reason I also don't know. I am not also sure if you HDD is IDE or SATA, the latter power interface, being just on a strip, is easy to break if you are not careful. That could one reason for the inactivity. If that is the case, then you may consider buying another HDD.

I would suggest at least checking the obvious before spending money on professional help, with can be very expensive. When you say that you unplugged the hard drive I assume that you are referring to the internal cables attached to it. If this is the case then check to make sure that it is reconnected securely. There should be 2 cables in the hard drive, a power cable and either a SATA or IDE cable. Make certain they are properly attached and reseat then if necessary, also ensure that the cables are not disturbed beyond that point. Ensure the SATA or IDE cable is still properly seated in the motherboard, the power cable usually has connectors between the hard drive and PSU, so check that they have not been loosened by the movement. Whether the hard drive works or not the BIOS should still be accessible, so you should check whether the hard drive is recognised there.

Thanks for sharing this discussion. Well i can understand your situation very much and i know u must be tensed to see so many unwanted things happening at the same time with your computer. I think u need to contact the service center as soon as possible before any untoward incident happen with your computer. Had i been in your place, i would have cried a lot as i would never have expected such things to happen with me as all my documents are there in my computer. What say?

The first thing that I would do is make sure that the power supply to the hard drive is securely attached to both the drive and the motherboard. Given what you've described, it sounds more to me like it's just not connected properly than something broke. Check that before you take it to a service center, unless you're uncomfortable working on your computer by yourself.