8a420f71_BSOD_Index__Parameter_4
[Parameter 1] 0x101 (Windows 2000 only) [Parameter 2] The child device object (FDO) [Parameter 3] The child device object (PDO) [Cause] A parent device object has detected that a child device has not set the DO_POWER_PAGABLE bit. [Parameter 4] 
The parent device object
BSOD Index
Parameter 4