Random BSODs - Have a feeling its in the Graphics Card

Built this quite recently (1 month or less). Already had to send a graphics card back due to it being faulty. BSODS are daily but random, no triggers, just usage causes them.

Included PERF and Dumps

Windows 7 - 64 Bit Full retail


PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-2500K 3.3GHz Quad-Core Processor (£164.22 @ CCL Computers)
CPU Cooler: Noctua NH-D14 65.0 CFM CPU Cooler (£56.79 @ Ebuyer)
Motherboard: ASRock Z68 Extreme3 Gen3 ATX LGA1155 Motherboard (£108.74 @ Amazon UK)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory (£40.56 @ Scan.co.uk)
Hard Drive: Crucial M4 128GB 2.5" Solid State Disk (£82.94 @ Scan.co.uk)
Video Card: Sapphire Radeon HD 7850 2GB Video Card (£181.97 @ Dabs)
Case: Fractal Design DEFINE R3 (White) ATX Mid Tower Case
Power Supply: Corsair 650W ATX12V / EPS12V Power Supply (£69.45 @ Ebuyer)
Optical Drive: Sony AD-7280S-0B DVD/CD Writer (£12.88 @ CCL Computers)
Monitor: Acer V243HAJbd 24.0" Monitor
Monitor: Acer V243HAJbd 24.0" Monitor
Mouse: Logitech MX518 Wired Optical Mouse

Two crashes during 1080p film.

Software Concerns:

Spybot Search and Destroy is not the best malware/spyware utility. Take a look at Good and Free system security combination. for better options.

Analysis:

BugCheck 0x124

You have a 0x124 hardware bugcheck. If the system is still under warranty, I would recommend sending it in to have diagnostic tests done and any bad hardware replaced.

   Warning

Before you proceed with the following, answer these two questions: Are you still under warranty? Does your warranty allow you to open up the machine to check hardware? If you are unsure of the answers to these questions, contact your system manufacturer. WARNING: The steps that follow can void your warranty!!!

For your hardware stop 0x124 crash, read through Stop 0x124 - what it means and what to try and use the following hardware checks to supplement that link.

• If you are overclocking any hardware, please stop.
  
  
• If you have an SSD, make sure the following are up to date:
  • SSD firmware
  • BIOS Version
  • Chipset Drivers
  • Hard disk controller drivers/SATA drivers
  • If you have a Marvell IDE ATA/ATAPI device, make sure the drivers are up to date from the Intel site or Marvell site and not from your motherboard/vendor support site.
  
  
  
• Run all but the advanced tests with SeaTools for HDDs.
  SeaTools for Windows
  
  SeaTools for DOS
  
  
• Monitor temperatures during the following tests.
  
  Use the following programs to monitor the temperatures.
  • Real Temp is a good CPU temperature monitor.
  • Speccy - System Information - Free Download will monitor all hardware temperatures.
  • HWiNFO, HWiNFO32 & HWiNFO64 - Hardware Information and Analysis Tools can be inaccurate for CPU temperatures, but is a good program for GPU temperature monitoring.
  
  
  • Use FurMark: VGA Stress Test, Graphics Card and GPU Stability Test, Burn-in Test, OpenGL Benchmark and GPU Temperature | oZone3D.Net to test the graphics card GPU. Let it run until the GPU temperatures even out or until the GPU temperatures reach a dangerous level (you can find the max temperature for your card on either the nVidia or AMD sites; if you are not sure, ask us). The goal is to get a steady temperature, find out if the GPU is overheating, or to see if there are any artifacts present in the test itself: look for strange pixelated patterns on the screen or colors that do not look like they belong. Then use the |MG| Video Memory Stress Test 1.7.116 Download to test your graphics card memory. Let the memory test run for at least seven passes; the more the better.
    
    
  • Run Hardware - Stress Test With Prime95 to determine any hardware problems. Run all three tests for a few hours each. If you get errors, stop the test and post back here.
    
    
  • Follow the steps for doing CPU stress test using IntelBurnTest
  
  
• Run the boot version of Memtest86+ paying close attention to Parts 2 and 3 of the tutorial. Also, in case Memtest86+ misses anything and comes up with no errors, run the extended version of the Windows Memory Diagnostics Tool for at least five passes. These you may want to run overnight since they take a long time to complete (run them an hour before bed each of the next two nights and check before going to sleep that they are still running).
  
  For Part 3: If You Have Errors: If you swap any memory components, follow these steps for ESD safety:
  
  1. Shut down and turn off your computer.
  2. Unplug all power supplies to the computer (AC Power then battery for laptops, AC power for desktops)
  3. Hold down the power button for 30 seconds to close the circuit and ensure all power drains from components.
  4. Make sure you are grounded by using proper grounding techniques, i.e. work on an anti-static workbench, anti-static desk, or an anti-static pad. Hold something metallic while touching it to the anti-static surface, or use an anti-static wristband to attach to the anti-static material while working. If you do not have an anti-static workbench, desk, or pad, you can use your computer tower/case by finding a metal hold in it, such as a drive bay.
  
  Once these steps have been followed, it is safe to remove and replace components within your computer.

Remember to read closely through Stop 0x124 - what it means and what to try for the crash.