Hello and welcome to the forums.
Start by updating these two drivers
ASACPI.sys 3/27/2005 from here
ASUSTeK Computer Inc. -Support- Drivers and Download M4A78LT-M LE expand utilities and about the eleventh one down labeled ATK0110 driver for WindowsXP/Vista/Win7 32&64-bit
while there make sure that you have installed the most recent drivers for your MoBo's, Chipset, Audio, Video, etc.
and
Determine the actual model name and or number Atheros network adapter you are using for
L1C62x64.sys 4/1/2009 and grab the most recent driver from here
ATHEROS drivers for Microsoft Windows (Atheros?????)
If Blue screens persist Then:
Please read the first post in this sticky thread here
How to ask for help with a BSOD problem
Do your best to accumulate the data required.
Run the SF Diagnostic tool (download and
right click the executable and choose run as administrator)
Download and run CPUz. Use the Windows snipping tool to gather images from
all tabs
including all slots populated with memory under the SPD tab.
Likewise RAMMon.
Export the html report, put everything into a desktop folder that you've created for this purpose, zip it up and attach it to your next post (right click it and choose send to, compressed (zipped) folder.
Additionally, if you haven’t already, please take some time and fill out your system specs in your forum profile area
http://windows7forums.com/windows-7...you-filling-your-system-specs.html#post235529 .
Good luck
Randy