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Windows 7 won't boot after BIOS Update! HELP!

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Last response: in Windows 7
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Hi Guy's,

Since April my New PC has been working fine. Then I re-downloaded Portal2 off Steam onto the Computer. Now I have had Problems with Portal 2 on my Old Laptop, e.g. Glitchy Sound, Not loading SP. It was a successful install (or so it say's) and I thought it would be ready to play. I entered the game and it crashed, and gave me the BSOD. Then I found out it was a problem with AMD's Bulldozer CPU's and that the only way to fix it was by updating the BIOS. So I updated BIOS successfully with Gigabyte's Q-Flash. Now ever time I turn the PC on say's loading Windows.... Then crashes and I get a quick BSOD message and it restarts! What should I do?

- Sam

Spec's:

AMD FX-4100
Gigabyte's GA-970A-D3
G.SKILL 1600Hz 8gb Ripjaws
1TB Seagate HDD
EVGA GTX 560 1GB
Cooler Master eXtreme 700w

More about : windows boot bios update

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quilciri said:
Clearing CMOS doesn't do anything to the BIOS version. If the BIOS flash failed, you still have a bad BIOS, only with default values. You need to either flash the BIOS again using a BIOS image on a cd, or restore from the backup BIOS.

http://www.overclockers.com/forums/showthread.php?t=697...


Okay so I did method 1 and 2 on the Overclockers Forum. Method 1 didn't work but Method 2 come up with a screen I've never seen (BIOS something, creating BIOS Image now.). Then I restarted the PC and Windows still stuffs up. :/  Could this be a Problem with my HDD?

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Windows 7 Expert

Go into your BIOS and make sure your SATA Controller is set to ACHI or ACPI mode. You probably installed Win 7 when the BIOS was in ACHI mode and now the SATA is in IDE mode it is binning it at a driver level.

Wamphryi said:
Go into your BIOS and make sure your SATA Controller is set to ACHI or ACPI mode. You probably installed Win 7 when the BIOS was in ACHI mode and now the SATA is in IDE mode it is binning it at a driver level.


Thankyou! It worked I'm now back on the computer! Everythings fine but I'm missing a few desktop icons, nothing major. Thankyou for fixing this stressful problem! :D 

- Samo

No RAID on our Dell E6500 which would not boot Windows 7 following replacing an IO Board which required removing the CMOS/Coin Cell battery, but this worked for us as well.

The "default" is IRRT and changing it to AHCI got it working. (changing it to ATA did not help).

2 other interesting observations:
1.Booting to Ubuntu worked with either setting
2.Disk diagnostics passed just fine.

Thanks!

The answer to the problem also helped me alot, although I have to ad (which I found on anandtech) that with some mainboards changing it to ACHI might change other settings like bootorder(which happened in the bios of the gigabyte mainboard which I was fighting with)...

So make sure to check the bootorder after you changed the IDE to AHCI setting.

Hope this will help others as it helped me.
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