laptop wont boot

Please help:

I was getting signs of a dead cmos battery on my laptop (not keeping time) so i replaced it but ever since doing this when my laptop boots it doesnt find the hdd so therefore wont boot when I go into BIOS there is nothing there, I double checked the hdd was in correctly and it was any thing I am missing obviuos things? many mnay thanks in advance..
rains_karsAsked:
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TuxxCommented:
Are the boot settings in the bios correctly set?
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jazzIIIloveCommented:
SATA thing?
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rains_karsAuthor Commented:
what settings should I have that might make the hdd not detectable
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jazzIIIloveCommented:
first check the BIOS --> you may be able to easily resolve this with a change in the SATA access mode.

In my bios:
"Advanced Tab->Onboard Devices Conf.->Configure as: AHCI (all options are: AHCI,IDE) " ==> If you set this to IDE, the XP x64 installation CD should "see" your hard drive and you can then proceed with the installation.

or vice-versa for you

Best regards...

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jazzIIIloveCommented:
<< the XP x64 installation CD should...

of course, omit this...
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rains_karsAuthor Commented:
sorry this did not work and the os is installed just cant get bios to see the hdd
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rains_karsAuthor Commented:
juat flashed bios still no success
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jazzIIIloveCommented:
ok...i am revising...
first check the BIOS --> you may be able to easily resolve this with a change in the SATA access mode.

In my bios:
"Advanced Tab->Onboard Devices Conf.->Configure as: AHCI (all options are: AHCI,IDE) " ==> If you set this to IDE or vice-versa, your OS will be detected...

Your disk SATA or IDE?
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rains_karsAuthor Commented:
in my bios sata access mode simply says enabled with no option to change
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jazzIIIloveCommented:
you reset the CMOS...as maybe the setting to detect SATA drives was disabled?
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jazzIIIloveCommented:
try for f6 and install SATA drivers...
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jazzIIIloveCommented:
Disable/Enable AHCI?
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rains_karsAuthor Commented:
all settings in bios are enabled ahci isnt available the os was working beofre bios battery changed so drivers are there still just bios not detecting drive
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jazzIIIloveCommented:
<<I was getting signs of a dead cmos battery on my laptop (not keeping time) so i replaced
You plug it in rightful way? Please check it...
When you replaced the battery was the computer unplugged? Did you leave the old battery out for a few minutes or set the CMOS jumper to clear to make sure the CMOS was reset to defaults?

If so, replug the old cmos and see how the system reacts...

or

Remove and plug again the memory sticks. Retry...

or

Remove all components and replug them...Retry...
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rains_karsAuthor Commented:
why might old batery make difference (not being cheeky) and I have done the rest replugged everything and resetted components..
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jazzIIIloveCommented:
well, if i were you i would try that too...any progress by the way?
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rains_karsAuthor Commented:
Thanks everyone for their help with this one but after taking the laptop apart I realised the issue which was the new cmos battery had more insulation tape than the first shrink wrapped battery and was holding the riser card for the hdd sightly off its connection (every so slightly) thanks guys/girls for all your help
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jazzIIIloveCommented:
cool...
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