Changed Mobo to Asus P8B75-M, Can't boot into Win7

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alexnaut

alexnaut

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Nov 30, 2014
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I recently changed my proprietary alienware motherboard to a M-ATX mobo from asus (P8B75-M) and it wont boot into windows any more. when i startup my pc it either asks me to insert proper boot device, it will blue screen, or windows will try to run the error check and fail. I have no idea what to do. i didnt change any other component from my original rig other than the mobo and gpu. i had the old rig running fine with the new gpu, windows worked, etc.
Im using the same hdd with win7 home premium installed.

ASUS M-ATX P8B75-M Mobo
MSI GTX 970
Intel Core I7 3770
16GB of Ram
2tb Seagate HDD
Corsair 600w CX PSU
No Optical Drive

Any help would be greatly appreciated
 
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pctech2005

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Mar 13, 2010
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if your bios is set on the new pc to ahci and the old pc to ide or something else, that could be the problem, you will probably need to reinstall windows as the drivers for the old board are not compatible with the new board
 
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alexnaut

alexnaut

Reputable
Nov 30, 2014
12
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4,510
because my old rig was prebuilt, win7 was pre installed will i have to buy a win7 disc to re-install it? since i have no optical drive will i need to purchase one?
 
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