BSOD 0x00000124

Eh...um...what information? there is nothing shown above....

Let us see the furmark screenshot of the new GPU?
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If it is still the same, that means that something else is present there that is causing it, but remains undetermined. We need to find it out.
Also upload any further crash dump.

There is a problem with the 7 series cards that all the available drivers for it are unstable

Is the computer hot? Report us the heat of the computer after a couple of hours of your normal usage. Upload a screenshot of the summery tab of Speccy. Alternatively, you can publish a Speccy snapshot too: Speccy - Publish Snapshot of your System Specs .
This image seems to be even odd.

I would suggest monitoring temps when running Furmark. The test is designed to stress your card and create as much heat as possible. Also, would you please go into bios and give me the readings of your PSU's +12V, +5V and +3.3V. This may have been covered earlier in the thread, but are you overclocking the card or the CPU. If you are, please set them back to default values.

No problem oddmut. If your card is factory overclocked, there is no problem with that.

Oddmug, the picture you showed on page 1 was at 97C. The one above is fine temp wise. But the page 1 one was way too hot, and was the reason or at least contributed to the reason it was artifacting. Please keep an eye on temps when you run this, or any stress test. That's what they do is heat it up rather quickly. I'm assuming there are 2 versions of Furmark with different backgrounds. In other cases the background was the yellowish color. Others are blue backgrounds. My version has a blue background. I can't explain that but know it has nothing to do with artifacting, it's just the color of the test. Several of us who do some graphics card benchmarking have discussed it. Some were yellow and some blue, but none of them were artifacting.