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Computer Posts but won't boot into Windows after rebuild

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josiahse

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Discussion starter · #1 ·
Hey Guys!

I need some help. *I apologize if this is in the wrong section of the forums*

For my recent birthday, I received a Corsair Obsidian 450D, so a couple days ago I took apart my whole system (in my sig) and reassembled it into my new case. At the same time I also replaced my older Corsair 750W PSU with the one in my sig rig.

Now the rig isn't booting. I can get into the BIOS and everything and checked temps and stuff, CPU is in under 50. Boot order is fine. Tried reseating the RAM and double checked they were in the right slots.

Here are the only things that I can think of that changed:
Case (shouldn't make any difference, though the front connectors did change)
PSU (again, I don't think this should make a difference. Since the system posts it seems like it should be fine)
Case fans (with the new case)
CPU Cooler Fan (swapped to a quieter fan)
Removed a storage HDD. Tried putting it back in and still no go.

Thanks for looking, and I really appreciate any insights you guys might have.
 
#2 ·
What happens after POST? Does it freeze, crash, reboot?

Does your BIOS recognize all of your drives?
 
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#3 ·
Sounds like you changed the Sata mode to/from IDE/AHCI or something else on the sata controller has windows getting confused and resetting. Toss in a win7 install disc and use the automatic boot repair? If it won't even boot to the install disc then something with the hardware is probably wacked.
 
Discussion starter · #4 ·
firehawk: Heh, sorry. Knew I was forgetting something.

After the computer posts it goes into this screen:

Hitting Startup Repair launches startup repair. I did this twice (once before and once after reseating RAM) to no avail.

Hitting "Launch Windows Normally" reboots the computer and lands me back on the same screen.

And yes, BIOS recognizes all my drives.

kenolak: I'll check those settings and try that out, thanks.
 
#5 ·
I've had win7 fail to boot and do what your describing after plugging the HDD back into the wrong sata plug. Didn't think about it at the time, but noticed it later. None the less the install disc fixed it within just a few min.
 
Discussion starter · #6 ·
kenolak, you were exactly right. Setting had gotten switched to IDE, switched it back to AHCI and it booted straight away. Booted a couple more times to make sure.

Thanks very much! Was really worried that I'd have to replace my mobo/CPU (which I can't afford right now).

Thank you thank you thank you!

Would never have thought of that on my own.
 
#8 ·
Check AHCI/IDE setting like kenolak suggested.

Edit: NVM, glad it got fixed
 
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#9 ·
Sorry to thread jack but i have a similar question regarding this.

exactly when should u be using IDE or ahci?

when i build my first rig, i didnt mess with any of those. (only had 1 HDD)

and someone tells me you only switch to AHCI if you have atleast one SSD in the system.
 
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