BSOD error 124

Since yestarday I got two BSOD with error code 124. No software/driver changes.

Any help appreciated

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1033

Additional information about the problem:
BCCode: 124
BCP1: 0000000000000000
BCP2: FFFFFA8007104028
BCP3: 00000000BE200000
BCP4: 000000000005110A
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\080212-14835-01.dmp
c:\Users\Rix\AppData\Local\Temp\WER-51870-0.sysdata.xml

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Blue screen view report

Code:

 Dump File

 Crash Time

 Bug Check String

 Bug Check Code

 Parameter 1

 Parameter 2

 Parameter 3

 Parameter 4

 Caused By Driver

 Caused By Address

 File Description

 Product Name

 Company

 File Version

 Processor

 Crash Address

 Stack Address 1

 Stack Address 2

 Stack Address 3

 Computer Name

 Full Path

 Processors Count

 Major Version

 Minor Version

 Dump File Size


 080212-14835-01.dmp 02-08-2012 14:07:45   0x00000124 00000000`00000000 fffffa80`07104028 00000000`be200000 00000000`0005110a hal.dll hal.dll+12a3b         x64 ntoskrnl.exe+7f1c0         C:\Windows\Minidump\080212-14835-01.dmp 4 15 7601 262.144


 080112-16411-01.dmp 01-08-2012 16:41:27   0x00000124 00000000`00000000 fffffa80`0707b028 00000000`be200000 00000000`0005110a hal.dll hal.dll+12a3b         x64 ntoskrnl.exe+7f1c0         C:\Windows\Minidump\080112-16411-01.dmp 4 15 7601 262.144