The crash was blamed on your video driver
Code:
nvlddmkm.sys Fri May 13 23:55:21 2011 (4DCDFD29)
which you just recently updated. If that's an isolated incident, I would write it off as a glitch.
Otherwise roll back to the previous version or remove driver with one of the aforementioned driver sweepers and try again.
As for your spike problem check this and cross reference with that latency checker
Download What's My Computer Doing? 1.02 Free - It shows all programs that are accessing your hard disk or using the CPU - Softpedia
The on board chip doesn't do anything on its own. So uninstall whatever causes the spikes and you're golden 
-DG
Code:
Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.
Loading Dump File [C:\Users\David\Desktop\MvdB\060911-19609-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available
Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows 7 Kernel Version 7601 (Service Pack 1) MP (8 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.17592.amd64fre.win7sp1_gdr.110408-1631
Machine Name:
Kernel base = 0xfffff800`03014000 PsLoadedModuleList = 0xfffff800`03259650
Debug session time: Thu Jun 9 09:11:14.735 2011 (GMT-4)
System Uptime: 0 days 0:00:10.578
Loading Kernel Symbols
...............................................................
..................................
Loading User Symbols
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
Use !analyze -v to get detailed debugging information.
BugCheck 1000007E, {ffffffffc0000005, fffff8000308a8b4, fffff8800375a6e8, fffff88003759f40}
Unable to load image nvlddmkm.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
Probably caused by : nvlddmkm.sys ( nvlddmkm+aa274 )
Followup: MachineOwner
---------
4: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M (1000007e)
This is a very common bugcheck. Usually the exception address pinpoints
the driver/function that caused the problem. Always note this address
as well as the link date of the driver/image that contains this address.
Some common problems are exception code 0x80000003. This means a hard
coded breakpoint or assertion was hit, but this system was booted
/NODEBUG. This is not supposed to happen as developers should never have
hardcoded breakpoints in retail code, but ...
If this happens, make sure a debugger gets connected, and the
system is booted /DEBUG. This will let us see why this breakpoint is
happening.
Arguments:
Arg1: ffffffffc0000005, The exception code that was not handled
Arg2: fffff8000308a8b4, The address that the exception occurred at
Arg3: fffff8800375a6e8, Exception Record Address
Arg4: fffff88003759f40, Context Record Address
Debugging Details:
------------------
EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.
FAULTING_IP:
nt!memcpy+204
fffff800`0308a8b4 488b040a mov rax,qword ptr [rdx+rcx]
EXCEPTION_RECORD: fffff8800375a6e8 -- (.exr 0xfffff8800375a6e8)
ExceptionAddress: fffff8000308a8b4 (nt!memcpy+0x0000000000000204)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 0000000000000000
Parameter[1]: 000000010fbeea58
Attempt to read from address 000000010fbeea58
CONTEXT: fffff88003759f40 -- (.cxr 0xfffff88003759f40)
rax=fffff8a000df7ff0 rbx=0000000000000008 rcx=fffff8a000df7ff0
rdx=000007610edf6a68 rsi=fffff8a000df7ff0 rdi=0000000000000008
rip=fffff8000308a8b4 rsp=fffff8800375a928 rbp=fffff8800375acf0
r8=0000000000000008 r9=0000000000000001 r10=fffffa80066a0148
r11=fffff8a000df7ff0 r12=000000000000000a r13=fffff8800375aa68
r14=000000010fbeea58 r15=0000000000000000
iopl=0 nv up ei ng nz na po nc
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010286
nt!memcpy+0x204:
fffff800`0308a8b4 488b040a mov rax,qword ptr [rdx+rcx] ds:002b:00000001`0fbeea58=????????????????
Resetting default scope
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
PROCESS_NAME: System
CURRENT_IRQL: 0
ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.
EXCEPTION_PARAMETER1: 0000000000000000
EXCEPTION_PARAMETER2: 000000010fbeea58
READ_ADDRESS: GetPointerFromAddress: unable to read from fffff800032c3100
000000010fbeea58
FOLLOWUP_IP:
nvlddmkm+aa274
fffff880`0f4ac274 ?? ???
BUGCHECK_STR: 0x7E
LAST_CONTROL_TRANSFER: from fffff8000338f7c2 to fffff8000308a8b4
STACK_TEXT:
fffff880`0375a928 fffff800`0338f7c2 : fffffa80`00000001 00000000`00000008 00000000`00000000 00000000`000007ff : nt!memcpy+0x204
fffff880`0375a930 fffff800`0338ce2b : fffffa80`09da3d60 fffff880`0375ada0 00000000`00000001 fffff880`0375ad30 : nt!ObpCaptureObjectName+0x102
fffff880`0375a9b0 fffff800`0338cee5 : fffffa80`066aca60 fffffa80`067284a0 00000000`0000006c 00000000`00000000 : nt!ObpCaptureObjectCreateInformation+0x279
fffff880`0375aa30 fffff800`0332a50e : fffffa80`0672b040 fffff880`0375abb0 fffff880`0375ad30 00000000`00000000 : nt!ObCreateObject+0x75
fffff880`0375aaa0 fffff800`03092f93 : fffffa80`0672b040 00000000`c000009a 00000000`00000000 fffffa80`08ba6000 : nt!NtCreateSymbolicLinkObject+0xbe
fffff880`0375ab30 fffff800`0308f530 : fffff800`034027b6 00000000`000090de fffffa80`0a7c8080 fffff980`2f418fa0 : nt!KiSystemServiceCopyEnd+0x13
fffff880`0375acc8 fffff800`034027b6 : 00000000`000090de fffffa80`0a7c8080 fffff980`2f418fa0 fffffa80`0a7c8080 : nt!KiServiceLinkage
fffff880`0375acd0 fffff880`0f4ac274 : 00000000`00000000 fffffa80`0a7c8080 00000000`c000009a fffff800`03421ed1 : nt!IoCreateSymbolicLink+0x46
fffff880`0375ad30 00000000`00000000 : fffffa80`0a7c8080 00000000`c000009a fffff800`03421ed1 fffff980`00000100 : nvlddmkm+0xaa274
SYMBOL_STACK_INDEX: 8
SYMBOL_NAME: nvlddmkm+aa274
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nvlddmkm
IMAGE_NAME: nvlddmkm.sys
DEBUG_FLR_IMAGE_TIMESTAMP: 4dcdfd29
STACK_COMMAND: .cxr 0xfffff88003759f40 ; kb
FAILURE_BUCKET_ID: X64_0x7E_nvlddmkm+aa274
BUCKET_ID: X64_0x7E_nvlddmkm+aa274
Followup: MachineOwner
---------
4: kd> lmntsm
start end module name
fffff880`00f6e000 fffff880`00fc5000 ACPI ACPI.sys Sat Nov 20 04:19:16 2010 (4CE79294)
fffff880`04678000 fffff880`04701000 afd afd.sys Sat Nov 20 04:23:27 2010 (4CE7938F)
fffff880`01237000 fffff880`01242000 amdxata amdxata.sys Fri Mar 19 12:18:18 2010 (4BA3A3CA)
fffff880`05726000 fffff880`0572c000 AsIO AsIO.sys Mon Aug 23 21:53:02 2010 (4C7325FE)
fffff880`0571f000 fffff880`05726000 AsUpIO AsUpIO.sys Mon Aug 02 22:47:59 2010 (4C57835F)
fffff880`013aa000 fffff880`013b3000 atapi atapi.sys Mon Jul 13 19:19:47 2009 (4A5BC113)
fffff880`013b3000 fffff880`013dd000 ataport ataport.SYS Sat Nov 20 04:19:15 2010 (4CE79293)
fffff880`041d4000 fffff880`041db000 Beep Beep.SYS Mon Jul 13 20:00:13 2009 (4A5BCA8D)
fffff880`05607000 fffff880`0571f000 BHDrvx64 BHDrvx64.sys Wed Apr 13 20:16:01 2011 (4DA63CC1)
fffff880`0494e000 fffff880`0495f000 blbdrive blbdrive.sys Mon Jul 13 19:35:59 2009 (4A5BC4DF)
fffff880`041a1000 fffff880`041cb000 cdrom cdrom.sys Sat Nov 20 04:19:20 2010 (4CE79298)
fffff880`00cfc000 fffff880`00dbc000 CI CI.dll Sat Nov 20 08:12:36 2010 (4CE7C944)
fffff880`01d94000 fffff880`01dc4000 CLASSPNP CLASSPNP.SYS Sat Nov 20 04:19:23 2010 (4CE7929B)
fffff880`00c9e000 fffff880`00cfc000 CLFS CLFS.SYS Mon Jul 13 19:19:57 2009 (4A5BC11D)
fffff880`0145e000 fffff880`014d0000 cng cng.sys Sat Nov 20 05:08:45 2010 (4CE79E2D)
fffff880`01dc4000 fffff880`01dd2000 crashdmp crashdmp.sys Mon Jul 13 20:01:01 2009 (4A5BCABD)
fffff880`04930000 fffff880`0494e000 dfsc dfsc.sys Sat Nov 20 04:26:31 2010 (4CE79447)
fffff880`04921000 fffff880`04930000 discache discache.sys Mon Jul 13 19:37:18 2009 (4A5BC52E)
fffff880`01d7e000 fffff880`01d94000 disk disk.sys Mon Jul 13 19:19:57 2009 (4A5BC11D)
fffff880`0418e000 fffff880`041a1000 dump_dumpfve dump_dumpfve.sys Mon Jul 13 19:21:51 2009 (4A5BC18F)
fffff880`040fa000 fffff880`04186000 dump_mv91xx dump_mv91xx.sys Fri Aug 27 05:49:22 2010 (4C778A22)
fffff880`04186000 fffff880`0418e000 dump_mvxxmm dump_mvxxmm.sys Fri Aug 27 05:49:03 2010 (4C778A0F)
fffff880`01dd2000 fffff880`01ddc000 dump_scsiport dump_scsiport.sys Fri Apr 22 16:04:32 2011 (4DB1DF50)
fffff880`100b5000 fffff880`101a9000 dxgkrnl dxgkrnl.sys Sat Nov 20 04:50:50 2010 (4CE799FA)
fffff880`101a9000 fffff880`101ef000 dxgmms1 dxgmms1.sys Sat Nov 20 04:49:53 2010 (4CE799C1)
fffff880`04882000 fffff880`048fb000 eeCtrl64 eeCtrl64.sys Tue May 03 00:23:25 2011 (4DBF833D)
fffff880`048fb000 fffff880`04921000 EraserUtilRebootDrv EraserUtilRebootDrv.sys Tue May 03 00:23:25 2011 (4DBF833D)
fffff880`01242000 fffff880`01256000 fileinfo fileinfo.sys Mon Jul 13 19:34:25 2009 (4A5BC481)
fffff880`01000000 fffff880`0104c000 fltmgr fltmgr.sys Sat Nov 20 04:19:24 2010 (4CE7929C)
fffff880`0162c000 fffff880`01636000 Fs_Rec Fs_Rec.sys Mon Jul 13 19:19:45 2009 (4A5BC111)
fffff880`01d44000 fffff880`01d7e000 fvevol fvevol.sys Sat Nov 20 04:24:06 2010 (4CE793B6)
fffff880`01c51000 fffff880`01c9b000 fwpkclnt fwpkclnt.sys Sat Nov 20 04:21:37 2010 (4CE79321)
fffff800`035fd000 fffff800`03646000 hal hal.dll Sat Nov 20 08:00:25 2010 (4CE7C669)
fffff880`01d3b000 fffff880`01d44000 hwpolicy hwpolicy.sys Sat Nov 20 04:18:54 2010 (4CE7927E)
fffff880`01256000 fffff880`013aa000 iaStor iaStor.sys Sat Nov 06 03:44:52 2010 (4CD50774)
fffff880`04807000 fffff880`04882000 IDSvia64 IDSvia64.sys Fri Mar 11 21:15:42 2011 (4D7AD74E)
fffff880`047d0000 fffff880`047fd000 Ironx64 Ironx64.SYS Fri Nov 12 18:06:50 2010 (4CDDC88A)
fffff800`00ba6000 fffff800`00bb0000 kdcom kdcom.dll Sat Feb 05 11:52:49 2011 (4D4D8061)
fffff880`01600000 fffff880`0161b000 ksecdd ksecdd.sys Sat Nov 20 04:21:15 2010 (4CE7930B)
fffff880`01860000 fffff880`0188b000 ksecpkg ksecpkg.sys Sat Nov 20 05:10:34 2010 (4CE79E9A)
fffff880`00c3b000 fffff880`00c8a000 mcupdate mcupdate.dll Sat Nov 20 08:03:51 2010 (4CE7C737)
fffff880`01154000 fffff880`0116e000 mountmgr mountmgr.sys Sat Nov 20 04:19:21 2010 (4CE79299)
fffff880`013dd000 fffff880`013e8000 msahci msahci.sys Sat Nov 20 05:33:58 2010 (4CE7A416)
fffff880`04050000 fffff880`0405b000 Msfs Msfs.SYS Mon Jul 13 19:19:47 2009 (4A5BC113)
fffff880`00fce000 fffff880`00fd8000 msisadrv msisadrv.sys Mon Jul 13 19:19:26 2009 (4A5BC0FE)
fffff880`01400000 fffff880`0145e000 msrpc msrpc.sys Sat Nov 20 04:21:56 2010 (4CE79334)
fffff880`040e7000 fffff880`040f2000 mssmbios mssmbios.sys Mon Jul 13 19:31:10 2009 (4A5BC3BE)
fffff880`01d29000 fffff880`01d3b000 mup mup.sys Mon Jul 13 19:23:45 2009 (4A5BC201)
fffff880`0116e000 fffff880`011fa000 mv91xx mv91xx.sys Fri Aug 27 05:49:22 2010 (4C778A22)
fffff880`0122f000 fffff880`01237000 mvxxmm mvxxmm.sys Fri Aug 27 05:49:03 2010 (4C778A0F)
fffff880`018e0000 fffff880`019d3000 ndis ndis.sys Sat Nov 20 04:23:30 2010 (4CE79392)
fffff880`04775000 fffff880`04784000 netbios netbios.sys Mon Jul 13 20:09:26 2009 (4A5BCCB6)
fffff880`04701000 fffff880`04746000 netbt netbt.sys Sat Nov 20 04:23:18 2010 (4CE79386)
fffff880`01800000 fffff880`01860000 NETIO NETIO.SYS Sat Nov 20 04:23:13 2010 (4CE79381)
fffff880`0405b000 fffff880`0406c000 Npfs Npfs.SYS Mon Jul 13 19:19:48 2009 (4A5BC114)
fffff880`04666000 fffff880`04672000 nsiproxy nsiproxy.sys Mon Jul 13 19:21:02 2009 (4A5BC15E)
fffff800`03014000 fffff800`035fd000 nt ntkrnlmp.exe Sat Apr 09 00:15:23 2011 (4D9FDD5B)
fffff880`01652000 fffff880`017f5000 Ntfs Ntfs.sys Thu Mar 10 22:39:39 2011 (4D79997B)
fffff880`041cb000 fffff880`041d4000 Null Null.SYS Mon Jul 13 19:19:37 2009 (4A5BC109)
fffff880`100b0000 fffff880`100b5000 nvBridge nvBridge.kmd Fri May 13 23:47:37 2011 (4DCDFB59)
fffff880`0f402000 fffff880`100b0000 nvlddmkm nvlddmkm.sys Fri May 13 23:55:21 2011 (4DCDFD29)
fffff880`0474f000 fffff880`04775000 pacer pacer.sys Sat Nov 20 05:52:18 2010 (4CE7A862)
fffff880`00e40000 fffff880`00e55000 partmgr partmgr.sys Sat Nov 20 04:20:00 2010 (4CE792C0)
fffff880`00e00000 fffff880`00e33000 pci pci.sys Sat Nov 20 04:19:11 2010 (4CE7928F)
fffff880`0113d000 fffff880`01144000 pciide pciide.sys Mon Jul 13 19:19:49 2009 (4A5BC115)
fffff880`01144000 fffff880`01154000 PCIIDEX PCIIDEX.SYS Mon Jul 13 19:19:48 2009 (4A5BC114)
fffff880`0161b000 fffff880`0162c000 pcw pcw.sys Mon Jul 13 19:19:27 2009 (4A5BC0FF)
fffff880`00c8a000 fffff880`00c9e000 PSHED PSHED.dll Mon Jul 13 21:32:23 2009 (4A5BE027)
fffff880`0188b000 fffff880`018dc000 rdbss rdbss.sys Sat Nov 20 04:27:51 2010 (4CE79497)
fffff880`04035000 fffff880`0403e000 RDPCDD RDPCDD.sys Mon Jul 13 20:16:34 2009 (4A5BCE62)
fffff880`0403e000 fffff880`04047000 rdpencdd rdpencdd.sys Mon Jul 13 20:16:34 2009 (4A5BCE62)
fffff880`04047000 fffff880`04050000 rdprefmp rdprefmp.sys Mon Jul 13 20:16:35 2009 (4A5BCE63)
fffff880`01cef000 fffff880`01d29000 rdyboost rdyboost.sys Sat Nov 20 04:43:10 2010 (4CE7982E)
fffff880`01200000 fffff880`0122f000 SCSIPORT SCSIPORT.SYS Sat Nov 20 05:34:01 2010 (4CE7A419)
fffff880`04784000 fffff880`047a1000 serial serial.sys Mon Jul 13 20:00:40 2009 (4A5BCAA8)
fffff880`01ce7000 fffff880`01cef000 spldr spldr.sys Mon May 11 12:56:27 2009 (4A0858BB)
fffff880`040d1000 fffff880`040e7000 SRTSPX64 SRTSPX64.SYS Tue Mar 29 22:46:18 2011 (4D92997A)
fffff880`0104c000 fffff880`010bd000 SYMDS64 SYMDS64.SYS Tue Dec 07 19:16:58 2010 (4CFECE7A)
fffff880`014de000 fffff880`015c2000 SYMEFA64 SYMEFA64.SYS Sun Mar 13 23:20:58 2011 (4D7D899A)
fffff880`0409b000 fffff880`040d1000 SYMEVENT64x86 SYMEVENT64x86.SYS Thu Mar 24 19:02:36 2011 (4D8BCD8C)
fffff880`04600000 fffff880`04666000 SYMNETS SYMNETS.SYS Thu Mar 17 23:24:33 2011 (4D82D071)
fffff880`01a4d000 fffff880`01c51000 tcpip tcpip.sys Sat Nov 20 04:25:52 2010 (4CE79420)
fffff880`0408e000 fffff880`0409b000 TDI TDI.SYS Sat Nov 20 04:22:06 2010 (4CE7933E)
fffff880`0406c000 fffff880`0408e000 tdx tdx.sys Sat Nov 20 04:21:54 2010 (4CE79332)
fffff880`047bc000 fffff880`047d0000 termdd termdd.sys Sat Nov 20 06:03:40 2010 (4CE7AB0C)
fffff880`0572c000 fffff880`05752000 tunnel tunnel.sys Sat Nov 20 05:51:50 2010 (4CE7A846)
fffff880`00e33000 fffff880`00e40000 vdrvroot vdrvroot.sys Mon Jul 13 20:01:31 2009 (4A5BCADB)
fffff880`041db000 fffff880`041e9000 vga vga.sys Mon Jul 13 19:38:47 2009 (4A5BC587)
fffff880`04000000 fffff880`04025000 VIDEOPRT VIDEOPRT.SYS Mon Jul 13 19:38:51 2009 (4A5BC58B)
fffff880`00e55000 fffff880`00e6a000 volmgr volmgr.sys Sat Nov 20 04:19:28 2010 (4CE792A0)
fffff880`010e1000 fffff880`0113d000 volmgrx volmgrx.sys Sat Nov 20 04:20:43 2010 (4CE792EB)
fffff880`01c9b000 fffff880`01ce7000 volsnap volsnap.sys Sat Nov 20 04:20:08 2010 (4CE792C8)
fffff880`047a1000 fffff880`047bc000 wanarp wanarp.sys Sat Nov 20 05:52:36 2010 (4CE7A874)
fffff880`04025000 fffff880`04035000 watchdog watchdog.sys Mon Jul 13 19:37:35 2009 (4A5BC53F)
fffff880`00ebb000 fffff880`00f5f000 Wdf01000 Wdf01000.sys Mon Jul 13 19:22:07 2009 (4A5BC19F)
fffff880`00f5f000 fffff880`00f6e000 WDFLDR WDFLDR.SYS Mon Jul 13 19:19:54 2009 (4A5BC11A)
fffff880`04746000 fffff880`0474f000 wfplwf wfplwf.sys Mon Jul 13 20:09:26 2009 (4A5BCCB6)
fffff880`00fc5000 fffff880`00fce000 WMILIB WMILIB.SYS Mon Jul 13 19:19:51 2009 (4A5BC117)