That will be two pages back with this reply for sure.
Without being able to see the left side of the screen to see if anything more like "unexpected_kernal_mode_trap" is seen along with the rest of the error the following information points out the likely cause for seeing this other then any video driver issue.
Symptoms
You may receive get the error on Windows:
”STOP 0x0000007F (UNEXPECTED_KERNEL_MODE_TRAP) “
Cause
This can arise if the either of following circumstances arise:
>Computer has hardware/software issues
>Computer's processor speed has been altered (e.g. processor is set at 150 MHz running at 187 MHz).
The STOP error above is due to a trap having occurred in kernel mode. The most common causes of ‘STOP 0x7F’ are:
>Low-level hardware corruption (corrupt memory)
>Mismatched memory modules
>Faulty motherboard
To determine an approximate cause, examine the parameters at the top of the STOP screen:
**STOP 0x0000007F (0x000000XX, 0x00000000, 0x00000000, 0x00000000)
UNEXPECTED_KERNEL_MODE_TRAP
The most important parameter is the first (0x0000000X) which can contain various different values. This occurs depending on the value of the parameter. Traps that cause a ‘STOP 0x7F’ are found in the Intel x86 microprocessor manual.
http://www.accessdatabaserepair.com/kb/Q137539.htm
You did mention ocing already with the new build there. The information seen there also confirms the MS information on this type of error message at
http://support.microsoft.com/kb/137539
CAUSE
This error message can occur if either of the following conditions exists:
•Your computer has hardware or software problems (hardware failure is the most common cause).
•You try to over clock the speed of your computer's processor (for example, you set a 150 MhZ processor to run at 187 MhZ).
The above STOP error means a trap occurred in kernel mode and the trap is either one the kernel is not allowed to have or is always fatal.
The most common causes of a STOP 0x7F are:
•Low-level hardware corruption, such as corrupt memory (RAM)
•Mismatched memory modules
•A malfunctioning motherboard