what do I need to boot from ahci

November 5, 2014 at 06:09:18
Specs: windows 7intel
How do I reboot from ahci(os system not found).system crash ..screen says os system not found.boot from ahci and what do I need

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#1
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#2
November 6, 2014 at 05:30:56
Was this system previously working properly with this installation of Windows? If so, did you change any settings in the BIOS (setup) screens, or have an issue with those settings due to a weak CMOS battery?

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#3
November 6, 2014 at 15:43:11
I'd go with Derek's original inclination--a problem with the hard drive, maybe a corrupted or deleted operating system. A 'missing operating system' message is different than 'no boot device found'.

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#4
November 8, 2014 at 05:34:28
I tried to access info on a music CD and my laptop started having problems straight away later the screen gave the message.. Boot from ahci CD ROM is system not found.I havnt changed anything as u am an amateur

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#5
November 8, 2014 at 07:47:28
"I tried to access info on a music CD". Does that mean you tried to boot to the music CD, or access it while you were already in Windows?

Does your computer boot into Windows?


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#6
November 8, 2014 at 12:27:13
Are you saying all this started when you noticed problems with the music cd and now it won't boot up at all? I doubt the music cd had anything to do with it.

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#7
November 10, 2014 at 03:34:37
I wasn't on line I put in a cd to. See what the video was that was on the music CD and things started to go wrong.next time I turned laptop on I got the message

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#8
November 10, 2014 at 03:40:08
That is what happened .now nothing works.I do get the f2 button stuff but ain't got a clue what to do if itll do anything anyway

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#9
November 10, 2014 at 06:56:19
If the CD is still in the player, the system could be trying to boot from the CD and not finding an operating system. Power up and immediately press the eject button continuously until the CD pops open. With the CD out you may be able to boot up normally, or at least see what damage was done. It is possible that if the CD was not yours and came from an unknown source, it might have a virus on it and then you will need to assess the damage to the system.

You have to be a little bit crazy to keep you from going insane.


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#10
November 10, 2014 at 07:20:03
I was able to eject CD .if the CD infected programme do I need to go to repair shop?

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#11
November 10, 2014 at 12:54:35
A few questions:

What is the make and model of your pc?

Did the pc come with any disks?

When the F2 prompt comes up does it say to enter setup? (eg click F2 to enter setup)?

Are you able to get into "Safe Mode"?

To get into safe mode repeatedly tap the F8 key in one second intervals as soon as you press the power button on the pc to power it up.


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#12
November 11, 2014 at 06:30:23
When I press f8 on start up I only get screen message saying..boot from ahci c d ROM.op system not found.....I can get into f2 menu..p.s. I have no discs or CD s for this Samsung w 7 Intel RV510 ao4 UK model. Can I do anything with the f2 menus ? thanks

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#13
November 11, 2014 at 14:25:44
You didn't indicate if you have removed the offending CD disk from the player.

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#14
November 11, 2014 at 14:37:12
"You didn't indicate if you have removed the offending CD disk from the player"
Post #11

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#15
November 11, 2014 at 14:58:19
Yes l have removed CD

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#16
November 12, 2014 at 18:01:48
Since F8 does not offer other boot options aside from the CD boot, it sounds like the hard drive is gone.
Try a few tests to see about the hardware:
Try booting to a CD with Memtest86 on it. This does not require an operating system and does not require the hard drive. It runs under DOS and runs off the CD and a small portion of your RAM. Let it run through all tests. This will confirm your memory is working properly and the hardware is running properly.
Then boot to a CD with Seatools from Seagate and run the short test. This also runs off of the CD and your RAM and tests your hard drive to see if it is in working condition. If Seatools does not find the hard drive, check in your BIOS set up to see if it appears there and if it is, make sure that it is set to be bootable. If the BIOS and Seatools do not 'see' the hard drive, it is probably beyond saving.

You have to be a little bit crazy to keep you from going insane.


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#17
November 14, 2014 at 02:52:59
Thanks I will let you know what happens.it will take me a few days to sort this out tho as I am an amateur at this.

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