Computer keeps restarting and won't load windows 7.

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Wesley Dortch

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Jun 3, 2013
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I just installed a new CPU and Motherboard into my computer and now when I try to start my computer it loads fine till it gets to the windows loading screen, then a blue screen pops up for just a second and restarts from the beginning?

The error code is 0X0000007B
It is a computer I build
 
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vegettonox

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Oct 11, 2006
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That has nothing to do with his current problem, he installed a new motherboard and cpu, the cpu being the important part. If the new processor has a drastically different chipset/cores/architecture then the system will fail to boot especially depending on the version of windows. I have found that newer versions of windows are less susceptible to this and will generally locate the changed hardware and install it if possible. It most likely comes down to when the hardware was released and if the os has the core drivers necessary to run it out of the box.
 
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ShadeTreeTech

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Jun 23, 2011
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I have a hunch, but I need more information to narrow it down.

What version of windows (mainly XP, Vista, Win7, etc...)? What is the BSOD error? If you tap F8 on start up you'll get a black and white menu prior to launching windows. Choose "Disable automatic restart on system failure" option, this will cause the system to stop on the BSOD and you can get the error code (ie 0x0000007B, or some other 8 digit hexadecimal code).
Is this a retail computer (Dell, HP, etc...) you are refreshing? Did you build it? Was the computer operating fine prior to swapping out the mainboard and proc?
 
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jayambroziak

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Dec 14, 2012
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Windows is married to the chipset, northbridge, and southbridge. It will require a clean install of windows if it's not EXACTLY THE SAME motherboard. You can use your previously used version of windows by calling the 1 800 number and saying that you replaced the motherboard.

BUT... your old installation of widows tht's already on the harddrive, is no longer or will no longer be valid. I hope you backed up your important files or you have a spare harddrive to install windows on. Then, you can get your old info off of the "older" drive.

Hope this helps.
 
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vegettonox

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I have personal experience of swapping an installed copy of windows to other systems and having it boot just fine. It will most likely detect that it is a different system and require a reauthentication. You can change your hardware I believe 3 times before you require a new key from microsoft.
 
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ShadeTreeTech

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vegettonox is correct that the windows installation is not "married to the chipset", that is a licensing thing. I also have experience changing mainboards (to a different chipset), and not having any issues with the windows installation.

XP was a lot more restrictive on changing components after an installation (i have changed a mainboard on a XP install). Vista less restrictive, and Win7 is fairly forgiving on changing a mainboard and keeping the current installation of windows. Although you still have to load drivers for the new mainboard, it's not any different than loading drivers for a new windows install.

Can it fail? Sure, it's possible that Wesley might have to reinstall windows to get it to work properly, an OS is very complex after all. However, I don't think that is what is going on here. I still need info from him to make any kind of judgement call.
 
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jayambroziak

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You are both wrong.

the oem microsoft license agreement says:

“An upgrade of the motherboard is considered to result in a “new personal computer” to which Microsoft® OEM operating system software cannot be transferred from another computer. If the motherboard is upgraded or replaced for reasons other than a defect, then a new computer has been created and the license of new operating system software is required.”

New motherboard = new computer. XP was easy to change motherboards by using a SATA controller card. Vista and 7, you are not able to do this.

Swapping the license over to to the new motherboard isn't a problem. Keeping the old windows installation is. It will require a fresh install of windows and a call to the 1-800 number to clarify why the license is being transferred (tell them that your motherboard died).
 
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ShadeTreeTech

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I have no interest in arguing with anyone. I just do this for fun. This is obligation-free assistance after all for both parties. I honestly don't mind if Wesley decides post answers to the questions I've asked or not (seriously it's cool). If he does, I will attempt to help him with what knowledge I have.
 
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dipakchaurasia

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Jun 13, 2013
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ShadeTreeTech

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Every time I've run across 0x0000007B errors it's due to changing how the controller interacts with the HDD. Your old board was probably set on IDE or compatibility mode, and your new board is likely set for AHCI. Change the setting in the BIOS to IDE mode which will resolve this error. (if the new board is already set to IDE mode switch to AHCI)

You should be able to load into windows and then install the drivers specific to your mainboard at that point. You should have a disk with these drivers on it. Is this 100%? Nope, but I've done it quite a few times.
 
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