PC keeps crashing and getting Blue Screen

The RAM frequency settings look good.

Can you check your BIOS for the voltage settings?

Have you been checking your temperatures?

Use Real Temp to check the CPU temps when at idle, under load and/or testing.
Let us know the minimum and maximum temps you get.

Go to your BIOS and tell us what the CPU, RAM and the CPU integrated memory controller voltages are.

Have you overclocked the CPU?
Or is that a turbo mode setting?

These missing Windows drivers are a problem.

Code:

 
cdd      cdd.dll      unavailable (00000000)
TSDDD    TSDDD.dll    unavailable (00000000)
win32k   win32k.sys   unavailable (00000000)

Have you installed all Windows updates?
If not you need to install them.

Install SP1: Learn how to install Windows 7 Service Pack 1 (SP1)

You're getting a lot of event errors from Spybot, try installing an up-dated version or un-install it and use Malwarebytes.

Code:

 
 Log Name: Application
  Source: SideBySide
  Date: 2011-03-25T01:38:01.000
  Event ID: 63
  Task: N/A
  Level: Error
  Opcode: N/A
  Keyword: Classic
  User: N/A
  User Name: N/A
  Computer: Cyborg-Box
  Description: 
Activation context generation failed for "c:\program files (x86)\spybot - search & destroy\DelZip179.dll".Error in manifest or policy file "c:\program files (x86)\spybot - search & destroy\DelZip179.dll" on line 8. The value "*" of attribute "language" in element "assemblyIdentity" is invalid.

Looks like no overclocking, is this correct?
Have you ever OC'ed this rig?

Those idle temps seem a little high for a stock CPU cooler, but within range. You might want to consider getting an after market CPU cooler, they are good ones in the $25-50 range. You can consider this after the crash source is found.


First run memtest86+, with all RAM cards installed and at current voltages and settings. If you get any errors, stop the test and report here. Best to run the test over night, just watch it for a couple of hours for errors.

When you run memtest86+ you are looking for bad RAM cards, bad motherboard slots, so you need to follow the testing procedure in the tutorial.
Sometimes errors from these tests can be corrected by adjusting the settings.
RAM - Test with Memtest86+

Is there a specific reason you lowered the RAM voltage from 1.65v to 1.50v?
Did you have any crashes before lowering the voltage?


If you want to lower the DRAM (DIMM) voltage you need to lower the DRAM frequency first.
The CPUZ SPD tab is the Corsair list of recommended timings, frequencies and voltages. Use this to set the RAM timings.


If you want to run the RAM at 1600MHz, then put the DIMM Voltage back to 1.65v.

With more than 4GB RAM I would bump the CPU VTT voltage, that's the CPU integrated memory controller.
Bump the CPU VTT voltage to 1.25v, but only with DIMM Voltage of 1.65v at 1600MHz.

Run memtest86+ again.

Good that memtest86+ passed, we will have to run it again later, it takes running it a few times to be sure the RAM is stable.

Is your RAM frequency still at 1600 (800MHz)?

With the CPU VTT Voltage set to 1.25v, and RAM voltage at 1.65v, run the Prime95 torture test for two hours. This will max out your CPU and test memory, be sure to watch the CPU core temps closely when it starts up, they should level off in a couple of minutes.


CPU - Stress Test with Prime95
Prime95 Torture test
If memtest86+ passes then run Prime95 torture test.
First open Real Temp to monitor CPU temperatures, don't go over 73°C.
Open Prime95 and stop the test if it is running, in Advanced tab select 'Round off checking', in the Options tab select 'Torture Test...', in the window that opens select 'Blend', after 'Number of torture test threads to run' enter 8, then click OK to start the test.

Your previous CPU core temps are high for an aftermarket cooler, should be lower 30's.
Did you install it?
Is there any thermal paste built up around the edges of the CPU and heatsink interface?

Post the complete dump files if you have another BSoD.

You're welcome.

Thanks for the update. Glad to hear it's running stable.