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Fix for a "hanging" PIO only mode on a device that should run in a higher mode

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Fix for a "hanging" PIO only mode on a device that should run in a higher mode.  Using device manager, make sure that DMA is set to Automatic.  If when it is set to Automatic and you close device manager, and then re-open it it should have changed the mode.  If it still says "Automatic", but again says PIO, then refer to the below screen-shot of a registry edit you can do.  Make sure the "MasterDeviceTimingMode" and "MasterDeviceTimingModeAllowed" are the same for the "Slave Device".  Also the bottom "UserSlaveDriveTimingModeAllowed" should match the 0xfffffffff Data also.

 
 

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This page last updated 09/29/11

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