Bsod driver_power_state_failure

I have sporadic BSOD issues with a PC I've built. Minidump says this:

DRIVER_POWER_STATE_FAILURE (9f)
A driver is causing an inconsistent power state.
Arguments:
Arg1: 00000003, A device object has been blocking an Irp for too long a time
Arg2: 84cbac08, Physical Device Object of the stack
Arg3: 82b66ae0, Functional Device Object of the stack
Arg4: 85171a60, The blocked IRP


Attached is the full minidump, along with information about my system. Thanks for any help you can give on this issue!



OS Name Microsoft Windows 7 Ultimate
Version 6.1.7600 Build 7600
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name VENUS
System Manufacturer Abit
Motherboard IP35-E
System Type X86-based PC
Processor Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz, 3060 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date Phoenix Technologies, LTD 6.00 PG, 5/30/2008
SMBIOS Version 2.5
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "6.1.7600.16385"
User Name Venus\Charlotte
Time Zone Eastern Daylight Time
Installed Physical Memory (RAM) 2.00 GB
Total Physical Memory 2.00 GB
Available Physical Memory 872 MB
Total Virtual Memory 4.00 GB
Available Virtual Memory 2.32 GB
Page File Space 2.00 GB
Page File C:\pagefile.sys