Random BSOD, BCCode: 124

Hi,

I was trying to change connection of my external fan which was previously connected to power supply. I connected it on motherboard. Since then I face with BSOD which occurs randomly.

Problem signature:
Sorunlu Olay Adı: BlueScreen
OS Sürümü: 6.1.7601.2.1.0.256.1
Yerel Kimlik: 1055

Additional information about the problem:
BCCode: 124
BCP1: 0000000000000000
BCP2: FFFFFA8007E9A028
BCP3: 00000000BE000000
BCP4: 000000000100110A
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Can you try running Prime95 as it looks like a faulty CPU.
Follow these instructions.

Hardware - Stress Test With Prime95

Run Prime95 for around 2 hours.

Code:

===============================================================================
Common Platform Error Record @ fffffa8007e9a028
-------------------------------------------------------------------------------
Record Id     : 01cf59c47c05c244
Severity      : Fatal (1)
Length        : 928
Creator       : Microsoft
Notify Type   : Machine Check Exception
Timestamp     : 4/16/2014 23:15:41
Flags         : 0x00000000

===============================================================================
Section 0     : Processor Generic
-------------------------------------------------------------------------------
Descriptor    @ fffffa8007e9a0a8
Section       @ fffffa8007e9a180
Offset        : 344
Length        : 192
Flags         : 0x00000001 Primary
Severity      : Fatal

Proc. Type    : x86/x64
Instr. Set    : x64
Error Type    : Cache error
Operation     : Generic
Flags         : 0x00
Level         : 2
CPU Version   : 0x00000000000306c3
Processor ID  : 0x0000000000000000

I tried to run 3 times but every time operation stopped due to BSOD. First two attemp lasted for about 30 mins, the third one lasted about 70-80 mins.

In the third attempt, Self-test 12K passed. Is it enough or should I make more attempts?

Self-test 12K is the first one isn't it? I don't use Prime95 that much but yes that is a strong indication of a CPU error. What do the temperatures get to?

Thedoctor44 said:

Self-test 12K is the first one isn't it? I don't use Prime95 that much but yes that is a strong indication of a CPU error. What do the temperatures get to?

First two attempt was around 8K. The third one was 12K. Temperature was about 65-68 °C

It still shouldn't fail.
You could try running it in safe mode as only basic drivers are loaded so if it is a driver problem this could rule it out.

It worked perfect for over 2 hours. I think it's a good sign, right?

In safe mode? If so then it looks like a driver issue.
Can you please run Driver Verifier by following these instructions.

Driver Verifier - Enable and Disable

Yes, it worked smooth in safe mode. So, I tried verifier and it crashed immediately after logging in.

Please see attached file.

That's not good.
Can you boot into safe mode with driver verifier enabled?