New mobo+cpu won't boot 'old' harddrive win7

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silverferret88

Honorable
Jun 27, 2015
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10,535
Built a new rig, keeping my old harddrive for now.

Windows 7, home premium

The system will boot into the BIOS section of the new Mobo, but will fail on load up. Windows cant repair the system to start.

Am I right to assume I'll need to reformat the drive to base to remove all previous MOBO drivers/settings? I've also read somewhere that the cdkey might be tied to my old MOBO? Is that true?

Ive assembled the new rig, I still have the old parts however have no interest in putting them all back together. What are my options?
 
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jimmysmitty
He is actually screwed. Not the nicest way to put it but here is why.

You went from AMD to Intel. The chipsets are vastly too different an is what is causing the HDD tono longer boot as it is trying to load AHCI drivers for the AMD SATA controller but it is now an Intel controller.

I have tried multiple times to "fix" this issue but the only way a change like this works is if you re using the same chipset manufacture, i.e. a Intel chipset to Intel or AMD chipset to AMD. In fact I just did this with my HTPC. I went from a AMD 760G to a AM1 chipset. Both are AMD chipsets and use the same controller information.

The only way to get it to work is to backup anything from the drive and reinstall Windows fresh.
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blazorthon

Glorious
Sep 24, 2010
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Windows 7 OEM is tied to the motherboard and can be fickle about being reused because Microsoft doesn't want it to be reused. Retail copies are not tied to the motherboard and can be reused.

It is difficult to transplant a hard drive like that without doing a reformat. Possible, but difficult. To have a chance at it, you'd need to be able to install the drivers for the new motherboard (if you change CPU brand, it is may be impossible).
 
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jimmysmitty

jimmysmitty

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Oct 5, 2007
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OEM allows 3 activations per year. You are allowed to add/upgrade/change parts in it which can cause a reactivation to trigger. You are not allowed to do a complete new build.

If you change the HDD, say your HDD goes bad, that counts as one reactivation in that year.

However it is not tied just to the motherboard.
 
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blazorthon

Glorious
Sep 24, 2010
14,022
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43,265
You'd install the new motherboard drivers from the disk the new motherboard came with, or you could download more up to date drivers from the motherboard's website. However, I have never attempted transplanting a hard drive after changing the CPUs. You'd need to manually install the CPU driver too and I don't know if that can be done.
 
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jimmysmitty

jimmysmitty

Champion
Oct 5, 2007
21,605
599
59,140
He is actually screwed. Not the nicest way to put it but here is why.

You went from AMD to Intel. The chipsets are vastly too different an is what is causing the HDD tono longer boot as it is trying to load AHCI drivers for the AMD SATA controller but it is now an Intel controller.

I have tried multiple times to "fix" this issue but the only way a change like this works is if you re using the same chipset manufacture, i.e. a Intel chipset to Intel or AMD chipset to AMD. In fact I just did this with my HTPC. I went from a AMD 760G to a AM1 chipset. Both are AMD chipsets and use the same controller information.

The only way to get it to work is to backup anything from the drive and reinstall Windows fresh.
 
Upvote 0 Downvote
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