Still after SrtTrail.txt fails after BIOS reset and HDD swap

Hi, I'm desperate for help.
I got a computer some months ago (used) with a Asus P8Z68-V LX motherboard and a Intel i5 2500k CPU.
It worked fine and I got a good noctua CPU fan to overclock it and mine some cryptocurrencies.
I OC:ed it to 4.4 gHz and left it to mine on 4 threads a couple of days. Second day when I get home the computer crashed when I started a game, blackscreen (screen lost connection). Second time I started it the game had a cropped resolution. It crashed at random when I was on my desktop screen opening 2 programs at once.
When I ran the "Startup repair" I got this:

Startup Repair Couldn't repair yout PC.
..
Log file C:\WINDOWS\System32\Logfiles\Srt\SrtTrail.txt

What I've tried is resetting BIOs by removing the motherboard battery, unplugging power cable and holding the power button for 15 seconds, swapped the HDD to a new one with a fresh install of windows 10, removed GPU and I'm still getting the SrtTrail.txt. Very strange.

Anyone got any ideas?
Thanks.

What is the frequency and voltage of the CPU?

Please provide some more specs of your system to help us help you, like PSU, cooling, case, GPU, etc.
Have a look at my system specs for an example :)

axe0 said:

What is the frequency and voltage of the CPU?

Please provide some more specs of your system to help us help you, like PSU, cooling, case, GPU, etc.
Have a look at my system specs for an example :)

Of course,

CPU Frequency: 3300 MHZ
Voltage (from BIOS),
CPU 1.104V
3.3V - 3.360V
5V - 5.040V
12V - 12.000V

I’ve played games and mined for hours and days, the problem started 2-3 days into overclocking it.
I went after this guide when overclocking: Intro to Overclocking With a ASUS P8Z68 Chipset - YouTube (OC:d to 4400 MHZ, same settings as the guy)

I did a burn test after overclocking, before leaving it on mining and it topped at 84 Celsius with Intelburntest during 1 hour. It topped at 73 Celsius when mining with 4 cores.
(This was in the past, I reset all BIO:s after it crashed the first time)

System Manufacturer/Model Number: Custom build
OS: Windows 10 Pro (reinstalled and problem remains)
CPU: i5-2500k
CPU cooling: Noctua NH-U12P SE1366 Dual Fan
Motherboard: Asus P8Z68-V LX (reset BIOs by removing battery overnight and problem remains)
BIOs version: 0602
Memory: 2x crucial ballistix sport 16gb ddr3 1600 MHz
Graphics Card(s): GeForce GTX 570 (GainWard) GS 1280M GDDR5 320B Dual-DVI HDMI DP (removed and problem remains)
Sound Card: intel
Displays: Sony LCD TV
Hard Drives: Western Digital WD5000AAKK 500GB (Swapped from a Seagate Barracuda 7200.11 and the problem remains)
PSU: Corsair TX650
Case: Fractal Define S

I also had some extra Firewire ports hooked to a PCI slot (Bought cheap from eBay and the problem remains after removing the card)

Have you made any upgrades to your system or replaced any parts, outside of the already mentioned things?
AFAIK, and per the provides specs, you may have an issue between your RAM and CPU & mobo due to DDR3 support (unless it is a typo?)

Could you increase the CPU voltage to 1.2V.

What if you type +96 in the panel?

Could you make a photo/screenshot of the BIOS settings in the panel and AI Tweaker of the CPU settings?