most laptops are 2.5 inch drives - only the height varies; rated as 1/8 height, 1/4 height or 1/2 height.
Remeber that you will need a way of re-installing your operating system once the hardware is fixed. You will need the recovery disk or original os disk provided with the laptop to make this operation go smoothly.
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A ticking sound is usually a major indicator that your Hard Drive is / has gone out. I would look at replacing your Hard Drive. If it is a bad Hard Drive it would lock your system up bad enough to have to remove the battery to shut down the system.
If this is the first time your trying to start up this computer try to restart it. Sometimes brand new laptops can fail to find the operating system on first startup. If this isn't the case it sounds like your Hard Drive is either disconnected or has had a critical failure.
If the sound you are referring to is a clicking sound, then it is a hard drive failure. Your computer is trying to boot up the operating system from the hard drive, but when it fails to access the hard drive, it tries to boot up from other devices configured on the BIOS. Apparently, your next choice for booting the operating system is set to the LAN card. Hence, you get the message "PXE-E61 Media test failure", which means that the computer tried to boot up the operating system over the network but it found out that your network cable is not connected to your computer's network interface card.
How Do I Change the Primary Master HDD User Password?
Prior to loading an operating system, your computer will first execute the BIOS program. The BIOS has an extra password feature, called the hard disk drive (HDD) user password, that can't be bypassed and provides a layer of defense to keep your data secure. To change an existing HDD user password you will have to load the BIOS menu, which is only accessible during the computer's operating system reboot procedure.
1. Close any windows that are currently open on your computer. Eject any discs inserted into the optical drive and disconnect any peripheral USB devices.
2. Open the "Start" menu and select "Shut Down." Turn on your computer once the operating system finishes shutting down.
3. Press the key your computer uses to load the BIOS menu. For example, with Dell computers tap "F2" when the "Press F2 for Setup" option appears. Press the "Access IBM" key on IBM laptops or "F10" on HP desktops.
4. Navigate to the BIOS tab that contains the HDD password option, which will usually be the "Security" tab. Some computer manufactures instead include the password option in the "Advanced" tab.
5. Scroll down to the option labeled either "User Password" or "BIOS lock" and hit "Enter." Type the current master HDD user password when the prompt appears and press "Enter."
6. Input a new HDD user password and hit "Enter" again. Navigate to the BIOS tab labeled "Exit" or something similar.
7. Move over to the "Save and Exit" entry and press "Enter." Select "Yes" and tap "Enter."
Sounds like your hard drive died. If hard drive is dead you wont be able to get into anything but the bios. Hold down the CTRL key when computer starts and dont let go and try to force it into going into bios for you.
One thing you could check is what order your computer is booting from. CD drive hard drive then other. Should be hard drive first. Go into the bios to do that. If you hold the power button down for 5 to 10 seconds the machine should physically shut down rather than unplugg. The unplug thing sounds like its in the power settings. But I've never heard of power settings being connected to bootup except for a password. Anyway a wild guess is check the bios bootup order.
If you get the "Operating System Not Found" meessage, it is caused by the hard drive having failed to locate the files to start your computer. You NEED the disk you got with your computer, then with that disk in the drive, start your computer. If it fails to go to the DVD drive hold down the F12 key at startup. Select the drive as your boot device. Whewn the restore screen comes up make the appropriate selection and you should be up and running.
Try taking out the hard drive and putting it in an external hard drive enclosure to see if the hard drive and operating system is ok. If you can not access the hard drive then you should try installing a new hard drive and operating system.
How old is the laptop and is it sued a lot. Is it left running 24 hours a day.
Hard drives fail all of the time and it sounds like yours died.
you have no choice but to open it up, this is to check that the hard drive works or has disslodged, pull the hard drive out and then reseat it again, reboot the laptop and see if the bios has found the hard drive, if it does try to boot into it
Operating system not found indicates that the system is not seeing a bootable device. Possible causes are:
1. Hard drive not detected due to loose connection. Reseat the HDD.
2. Hard Drive is failing/Failed. Replace HDD
3. System has a floppy drive and a diskette in the drive, remove diskette, reboot
4. Hard drive not in boot sequence. Reset BIOS to defaults