Question about Samsung R519-53S Notebook

5 Answers

My laptop says boot from ahci cd-rom operating system not found and i have no disk but i can switch it on and press f2 which brings me 2 the set up utility but then i dont know what 2 do

Posted by lexus anderson on

  • lexus anderson Sep 28, 2011

    thank you very much Brian Sullivan and Art Ellison i done a mixture of both and my laptop is now working , i just need clear some space on it now thank u .

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5 Answers

Brian Sullivan

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  • Samsung Master
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Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer

you could select the option start at last known configuration that worked this will tell you if and what file has been corrupted or missing then you will know if its a hardware issue then select restart if the problem still persists f8 back into safe mode you might need to select your operating system to load into safe mode

click start control panel administration tools computer management in the left panel events + to expand then system you will see all errors in right panel right click select properties this will tell you what has occurred and the time it occurred

you might use the system restore to restore your system to an earlier time click start all programs accessories system tools you should see your system restore option if it is a hardware issue the system restore might not work
if you need more help with this or if I have misunderstood the problem post a reply
hope this helps you

Posted on Sep 28, 2011

  • 5 more comments 
  • Art Ellison
    Art Ellison Sep 28, 2011

    That won't work. From what I read, the computer cannot find the O/S which indicates a hard drive failure.

  • Brian Sullivan
    Brian Sullivan Sep 29, 2011

    Restart your computer
    During the boot process you will see on the screen to press a certain key to enter setup
    Press and hold that key during the boot up process to enter BIOS using the arrow keys load failsafe defaults or load optimized defaults press escape then press f10 to save to cmos to restart
    hopeit helps

  • lexus anderson Sep 29, 2011

    thank u very much

  • Brian Sullivan
    Brian Sullivan Sep 30, 2011

    try uninstalling a few unnecessary programs click start control panel add remove programs/uninstall programs this will vary depending on your operating system

    then click start run type cmd then type chkdsk/r/f this should schedule to happen on reboot which will scan for and attempt to recover bad sectors and automatically fix any corrupt files on your hard drive also
    do not do anything while the chkdsk utility is in progress any input might damage your hard drive
    another way of doing this is

    click start control panel administrative tools computer management disk management right click on your drive select properties click tools you should see click check now click start tick in both boxes automatically fix files and scan for and attempt recovery of bad sectors place then a tick in both boxes then select check now start should schedule this task when restart
    do not do anything while the chkdsk utility is in progress any input may damage your computer

    then click start all programs accessories system tools defragment your hard drive
    scroll to the bottom toolbar (bottom of screen) right click you can select task manager applications also processes you will see whats running on your computer (ticking over) you might have virus slowing your computer also select users you will see who is using your computer

    this will free up space and speed up your computer although installing more ram might be the best option of speeding a computer up

    hope this helps you

  • Susan Lawn
    Susan Lawn Feb 11, 2013

    I had the same problem and did exactly what you recommended Brian. I am both pleased and very thankful to say it worked. I was so worried this is a new laptop I saved hard for, I was sore afraid I had been sold a Pig in a pokee

  • Susan Lawn
    Susan Lawn Feb 11, 2013

    Should have said 'poke'. No edit facility :)

  • Brian Sullivan
    Brian Sullivan Feb 11, 2013

    happy to hear your computer is running again if you need more help with anything post a reply

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Art Ellison

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  • Master
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When you press F2, you should be taken to the main CMOS setup screen.
There you will see the hard drive, CD, etc.
If it lists "none" for the hard drive, you've found your problem--the hard drive has gone bad.
There should be a menu item for "boot" or "boot order"
Going there you should see the CD as the first boot device and the hard drive as the next one.
If the hard drive has gone bad, you will be seeing the message you described. It is trying to boot from the CD, but if there isn't a bootable CD, it tries the hard drive. If the drive is bad, it will say O/S not found.

Posted on Sep 28, 2011

  • 5 more comments 
  • Brian Sullivan
    Brian Sullivan Sep 28, 2011

    test all leads that attach to your hard drive including electrical extensions SATA
    the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them they could be faulty

    make sure all leads that are attached to your drives dvd\cd have secure connections and are not faulty or just replace them they could be faulty ?
    even something as small as an electrical extension or a faulty fan lead can cause this problem computer needs all of the data and power to travel through every working device and to have an end for a computer to be able work properly

    a motherboard and a hard drive any leads between them will fail before your motherboard or your hard drive check all electrical extensions make sure they are securely seated even the cd/dvd drives need to have current go through make sure these devices are working

  • Art Ellison
    Art Ellison Sep 28, 2011

    The system here is a laptop--not a desktop.

  • Brian Sullivan
    Brian Sullivan Sep 28, 2011

    all have motherboards and eletrical wires and fans some have cd and dvd drives possibly external

  • Art Ellison
    Art Ellison Sep 29, 2011

    So you expect a neophyte to take the laptop apart and check the connections? Sorry, I do this as a business and cannot agree with your advice, well-intentioned though it is.

  • lexus anderson Sep 29, 2011

    thank you every one for ur help i will use this again in the future

  • Art Ellison
    Art Ellison Sep 29, 2011

    We are very glad you like the service. We really try to help whenever we can.

  • Brian Sullivan
    Brian Sullivan Sep 29, 2011

    so a neophyte has fixed it with some of our suggestions it does not hurt to supply a little imformation as small as it might seem

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James Young

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  • Master
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Double check your boot sequence. You should be able to access the Bios settings and make sure you are set to Cd, Usb Drive, Hard Drive. Make sure the hard drive is properly connected. Finally, put a bootable CD in the cd drive, if you never created the Windows restore disk or don't have them you can download a program called Knoppix, it is also available in many half price book stores. This program is actually a Linux based Operating system that will run from the CD and allow you to access the hard drive and do repair operations on the drive. It sounds like your hard drive crashed or has lost it's Master Boot Record which it needs in order to locate the files needed to start the operating system. You can try accessing the recovery drive by pressing the power button than immediately pressing F10 right after the Computer splash screen comes up and try using the start up repair feature available in Windows or reload the operating system to factory settings.

Posted on Sep 30, 2011

Bayyagg

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Hmmmm...wuts hapening here? NO COMMENT!
Art Ellison is right!

Posted on Sep 29, 2011

Jay Angel

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  • Contributor
  • 49 Answers

Boot from ahci cd-rom
operating system not found :)The problem is on your bios set upThe ahci cd-rom was booted 1st..
Go to boot setup. and set your hardrive on 1st boot not the cd-rom1st-Hardrive2nd-CD-ROM 3rd-Disable( Optional )

Posted on Oct 09, 2011

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