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Windows 7: 90% cpu usage after AMD chipset update

12 Dec 2014   #11

7 x64 Ultimate

Quote   Quote: Originally Posted by Layback Bear View Post
Did you installed Windows 7 update KB3004394?
If so did the problem start before or after that update?
This update not installed.

As far as I know AHCI is only updateable through the motherboard bios.
As you know from the tutorial: you switch it on from the BIOS, but the chipset drivers get installed after the OS.
My System SpecsSystem Spec
12 Dec 2014   #12

8.1 Pro x64

I see you tried those drivers initially, but reverting the drivers worked for me.
Spent an hour trying to figure this out earlier today, after installing the Catalyst Omega chipset drivers on my 760G mobo + FX6300.

Problem went away when I reverted to Microsoft's AHCI drivers. Back to ~0.1% interrupts periodically instead of ~11% constantly.
My System SpecsSystem Spec
12 Dec 2014   #13

7 x64 Ultimate

Sigh. I had to rollback too. But it did fix that problem.
My System SpecsSystem Spec


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