Solved BSOD after taking in PC to repair shop

Good to know your system is clean, no malware.

Have you had a crash since you changed the motherboard?

Nope, no crashes so far.
 

My Computer

OS
Windows 7 Professional x64
CPU
AMD Phenom II X2 550 Black Edition Dual Core Processor
Motherboard
ASUS M4A78T-E ATX
Memory
Mushkin Enhanced Silverline Stiletto 8GB 2X4GB PC3-10666
Graphics Card(s)
XFX 5770 1gb video card
Sound Card
Integrated
Monitor(s) Displays
Asus VE208
Screen Resolution
1600 x 900
Hard Drives
Western Digital Caviar Black 640GB 7200RPM
PSU
OCZ ModXStream Pro 500W
Case
Antec Three Hundred Mini Tower Gaming Case 300 ATX
Keyboard
Labtec PS/2
Mouse
Logitech MX518
Looks like you have solved it, let us know if you get another crash.

If you go a week without a crash, then let us know and you can mark this thread 'Solved'.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
76~2.0
OS
Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
CPU
Intel Core i5-3570K 4.6GHz
Motherboard
Gigabyte GA-Z77X UD3H, f18
Memory
8GB (2X4GB) DDR3 1600 Corsair Vengeance CL8 1.5v
Graphics Card(s)
Sapphire HD 7770 Vapor-X OC 1GB DDR5
Sound Card
Onboard VIA VT2021
Monitor(s) Displays
22" LCD Dell
Screen Resolution
1680x1050
Hard Drives
Samsung 840Pro 128GB SSD,
Seagate Barracuda 500GB SATA2 7200rpm 32MB cache, Seagate Barracuda 1TB SATA2 7200rpm 32MB cache,
PSU
Corsair HX650W
Case
Cooler Master Storm Scout
Cooling
Corsair H80 2x12cm Noctua NF P12 , 2x14cm case fans
Keyboard
Logitech Wave
Mouse
CM Sentinel
Internet Speed
Dismal
Antivirus
Avast
Browser
Opera Next
Other Info
Haswell laptop: HP Envy 17t-j, i7-4700MQ, GeForce 740M 2GB DDR3, 17.3" Full HD 1920x1080, 16GB RAM, Samsung 840 Pro 128GB, 1TB Hitachi 7200 HDD,
Desktop: eSATA ports,
External eSATA Seagate 500GB SATA2 7200rpm,
External WD USB 500GB
Thanks everyone for the help!

My PC has been running fine with no problems for a week now.

I guess it was the motherboard after all.

Thanks once again!
 

My Computer

OS
Windows 7 Professional x64
CPU
AMD Phenom II X2 550 Black Edition Dual Core Processor
Motherboard
ASUS M4A78T-E ATX
Memory
Mushkin Enhanced Silverline Stiletto 8GB 2X4GB PC3-10666
Graphics Card(s)
XFX 5770 1gb video card
Sound Card
Integrated
Monitor(s) Displays
Asus VE208
Screen Resolution
1600 x 900
Hard Drives
Western Digital Caviar Black 640GB 7200RPM
PSU
OCZ ModXStream Pro 500W
Case
Antec Three Hundred Mini Tower Gaming Case 300 ATX
Keyboard
Labtec PS/2
Mouse
Logitech MX518
Good news, thanks for letting us know the results.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
76~2.0
OS
Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
CPU
Intel Core i5-3570K 4.6GHz
Motherboard
Gigabyte GA-Z77X UD3H, f18
Memory
8GB (2X4GB) DDR3 1600 Corsair Vengeance CL8 1.5v
Graphics Card(s)
Sapphire HD 7770 Vapor-X OC 1GB DDR5
Sound Card
Onboard VIA VT2021
Monitor(s) Displays
22" LCD Dell
Screen Resolution
1680x1050
Hard Drives
Samsung 840Pro 128GB SSD,
Seagate Barracuda 500GB SATA2 7200rpm 32MB cache, Seagate Barracuda 1TB SATA2 7200rpm 32MB cache,
PSU
Corsair HX650W
Case
Cooler Master Storm Scout
Cooling
Corsair H80 2x12cm Noctua NF P12 , 2x14cm case fans
Keyboard
Logitech Wave
Mouse
CM Sentinel
Internet Speed
Dismal
Antivirus
Avast
Browser
Opera Next
Other Info
Haswell laptop: HP Envy 17t-j, i7-4700MQ, GeForce 740M 2GB DDR3, 17.3" Full HD 1920x1080, 16GB RAM, Samsung 840 Pro 128GB, 1TB Hitachi 7200 HDD,
Desktop: eSATA ports,
External eSATA Seagate 500GB SATA2 7200rpm,
External WD USB 500GB
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