Code:
0: kd> .bugcheck
Bugcheck code 000000D1
Arguments 00000000`00000000 00000000`00000002 00000000`00000000 fffff800`a7190dc5
0: kd> kn
# Child-SP RetAddr Call Site
00 fffff801`f10cd628 fffff801`ef3eeae9 nt!KeBugCheckEx
01 fffff801`f10cd630 fffff801`ef3ed33a nt!KiBugCheckDispatch+0x69
02 fffff801`f10cd770 fffff800`a7190dc5 nt!KiPageFault+0x23a
03 fffff801`f10cd900 00000000`00000000 STXII+0x2f7dc5
0: kd> lmvm STXII
start end module name
fffff800`a6e99000 fffff800`a71c7000 STXII T (no symbols)
Loaded symbol image file: STXII.sys
Image path: \SystemRoot\system32\drivers\STXII.sys
Image name: STXII.sys
Timestamp: Tue Feb 18 04:24:18 2014 (5302E072)
CheckSum: 002A6DDC
ImageSize: 0032E000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
STXII is the culprit.
It's a C-Media audio driver for your sound card, which I believe is the ASUS Essence.
It's quite outdated, so an update should resolve the issue.