Rebuilt PC, Windows 7 won't boot

I have a nasty feeling I'm unaware of some law of the universe that I should have taken into account here.

I had an old PC. I bought Win 7 for it, installed. Turns out my motherboard doesn't have Win 7 drivers available, resulting in funky power supply issues across all peripherals (a roll of the dice if the thing boots or not). Obvious solution: use as an excuse to buy a new motherboard, requiring a new processor and more memory. I kept the GPU, HDD and PSU (capacity well over load, not cheap).

Now I have an i3 (Intel Core i3 2120) system. Everything lights up just fine, except booting Windows only goes as far as the first few frames of the logo animation. Then it terminates, reboots, and loads up the "there seems to be something wrong" boot screen. I tried the recovery start-up, it couldn't identify or fix anything. It doesn't give me options to do anything else.

Known issue: the mobo doesn't have an IDE slot so I couldn't plug in my DVD drive.

Possible issues that spring into mind:

- Windows doesn't like the amount of change in the system. It doesn't say anything to the effect, though.
- I can't use a 32-bit Windows on the 64-bit system. I did think about this but thought I would only miss out on the benefits of the 64-bit architecture, I thought it was supposed to be backwards compatible regardless?
- The missing DVD drive is somehow jinxing the load-up. I turned it off the boot sequence in BIOS, no effect.

The only thing I think I can still do is get an adapted to connect my DVD drive and see if a disc boot works any better.

Maybe I'm just missing it, but you didn't say you did yet another fresh install of Windows after switching to the new motherboard and other new hardware.

In my experience, in general, sometimes Windows behaves fine when you switch motherboards. You do your driver installs and everything goes great. Other times Windows flips the bird at you and informs you where you can shove your new hardware but does so without actually informing you what the problem is.

I've never found any consistency when I try it, and I've given it a shot four (maybe five?) times now. It worked fine twice.

- Windows doesn't like the amount of change in the system. It doesn't say anything to the effect, though.

Very likely this. However, check your IDE mode in the BIOS, between IDE and AHCI mode.

- I can't use a 32-bit Windows on the 64-bit system. I did think about this but thought I would only miss out on the benefits of the 64-bit architecture, I thought it was supposed to be backwards compatible regardless?

You can run 32b windows on 64b hardware, but not 64b windows on 32b hardware.

- The missing DVD drive is somehow jinxing the load-up. I turned it off the boot sequence in BIOS, no effect.

It shouldn't do, all you're saying is which drive to boot from.

Regarding the setup, you can use this to load an iso onto a USB stick to boot from, although that will need an iso file or one made from the disc.

Scratched wrote:
- Windows doesn't like the amount of change in the system. It doesn't say anything to the effect, though.

Very likely this. However, check your IDE mode in the BIOS, between IDE and AHCI mode.

Ahh, switching the BIOS IDE mode to IDE from AHCI did it! Booted up just fine. Thanks a ton!

jlaakso wrote:
Scratched wrote:
- Windows doesn't like the amount of change in the system. It doesn't say anything to the effect, though.

Very likely this. However, check your IDE mode in the BIOS, between IDE and AHCI mode.

Ahh, switching the BIOS IDE mode to IDE from AHCI did it! Booted up just fine. Thanks a ton!

Glad it was something simpler