Monday, April 1, 2013

AMD SB850/SB950 bug - performance issue

If you are using AMD SB850/SB950, and also you find your hard disk running very slow. (A new purchase machine and also clean install Windows) For example, when you click a software to run, the whole windows is freezing (cannot open the other software and even the task manager, the performance and reliability monitor about the harddisk is empty (No information is show up).

It maybe you hit the bug of the SATA IDE combined mode.

Solution:

Go to BIOS and disable the “SATA IDE Combined Mode”

IMG_20130325_010458 (Large)

If you cannot find this option, please make sure all the SATA connection are using RAID/AHCI. (No “IDE” option have been set for SATA device)

 

After you make the above change, you should see the IDE ATA/ATAPI Controller – show “AMD SATA Controller” only, no other IDE device/controller.

AHCI_Win7

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