Question : Blue Screen Windows 7 - Memory_Management 0x0000001a

I am setting up a new system and I am having a periodic BlueScreen indicating a Memory Management issue.  Have not picked up on a definite pattern as to when the BlueScreens occur, yet.  Below is a copy of the Blue Screen info:

Problem signature:
  Problem Event Name:      BlueScreen
  OS Version:      6.1.7600.2.0.0.256.48
  Locale ID:      1033

Additional information about the problem:
  BCCode:      1a
  BCP1:      0000000000003452
  BCP2:      000000000E7E5000
  BCP3:      FFFFF700010B1E70
  BCP4:      B2D0000164B9BC46
  OS Version:      6_1_7600
  Service Pack:      0_0
  Product:      256_1

Files that help describe the problem:
  C:\Windows\Minidump\110609-16660-01.dmp
  C:\Users\\AppData\Local\Temp\WER-260318-0.sysdata.xml

The system is as follows:
  MB: ASUS P7P55 WS (BIOS 0403)
  CPU: Intel i7-860, 2.8GHz
  MEM: 4 DIMMs - G SKILL F3-12800CL9-2GBNQ for a total of 8GB
  OS: Windows 7, 64 bit.

In reviewing the manuel for the MB I found a note that "Due to Intel spec definition, X.M.P. DIMMs and DDR3-1600 are supported for one DIMM per channel only."  Not sure if this is an issue and presently running on only 2 DIMMs at the present time and waiting to see if the problem persists.  There are also two BIOS updates since the version on my MB.  Not sure if that may help.

I also ran MemTest86 before removing 2 DIMMs no problems after 2 passes.  Will run more passes as time allows.

Any input as to the possible problem would be appreciated.

Thanks

Answer : Blue Screen Windows 7 - Memory_Management 0x0000001a

Found a solution.  I had also been emailing the memory manufacture and they came up with the most probable cause and solution.  The ASUS P7P55 WS has a AI Overclock Tuner that will automatically adjust the BIOS memory configuration to get optimal performance.  The problem is sometimes it was setting values that were unstable.  By manually setting some of these values to a fixed value,  that instability is less likely.  Below is a list of settings that were recommended to be set manually.  NOTE - The values listed below are for the ASUS P7P55 WS motherboard and G.SKILL F3-12800CL9D-4GBNQ memory I am using in my system.  SETTINGS AND OPTIONS WILL BE DIFFERENT FOR DIFFERENT MOTHERBORDS AND MEMORY.  

AI Overclock Tuner - Manual
CPU Ratio Setting - 21.0
BCLK Frequency - 133
DRAM Frequency - DDR3-1600MHz

DRAM Voltage - 1.60V
CPU PLL Voltage - 1.90V

DRAM Timing Control (submenu)
CAS Latency - 9
RAS to CAS Delay - 9
RAS PRE Time - 9
RAS ACT Time - 24

DRAM Timing Mode - 2N

All others can be AUTO

I hope this is the perminate fix and that this information can help others with simular problems.  Points divided among all those you helped.  Thanks again to everyone here at experts-exchange...