System Stability Problems

[Hackentosher]

Alright, so my main rig has 

• 4670k 
• Gigabyte z87x-OC (not OC force)
  • Running stock BIOS, F7, an F8 version is available
• GTX 970 Windforce
• 16gb corsair Vengeance 1600mhz DDR3
• various hard drives
  • 3 1tb HDDs and 2 SSDs
  • boot drive is a 240gb 840
• TP Link Ac1750 wifi card
• Corsair H80i (6 years old)
• Corsair cx600m (4~ years old)
• Windows 10 64bit

So over the past couple of weeks, I've been noticing some stability issues. It started with just some POST loops, which I had dealt with before. I fixed it by switching to the other BIOS on the motherboard. It wasn't the biggest deal, I'd usually just have to give a hard reset. These are worse, the BIOS would go to the boot failure screen when it finally did POST and had reset to defaults. Now I have been running my CPU at 4.4ghz at 1.25v for just about the life of the system in its current state (4 years). It gets warm in games, the stock IHS with the h80i runs it up into the 90s under really heavy loads, but I never thought much about it since I don't game a lot. However, last week I tried rendering a video in Premiere and it crashed. Every. Single. Time until I brought the cpu back to stock speeds. 

 

Today, I decided to try running a stress test at my normal OC and AIDA stopped the test, reporting a hardware failure. So is my CPU starting to go? What can I do? I've tried reinstalling the motherboard chipset drivers to no avail, I'm kind of at a loss here and I don't really have the money to replace my CPU right now.

[DrMacintosh]

4 minutes ago, Hackentosher said:

It gets warm in games, the stock IHS with the h80i runs it up into the 90s under really heavy loads, but I never thought much about it since I don't game a lot. However, last week I tried rendering a video in Premiere and it crashed. Every. Single. Time until I brought the cpu back to stock speeds. 

That sounds like your cooler has failed. I have a 4690k and I don't get anywhere near that with a Corsair H55

 

Don't know how a CPU starting to die can make the system run hotter. 

[Hackentosher]

1 minute ago, DrMacintosh said:

That sounds like your cooler has failed. I have a 4690k and I don't get anywhere near that with a Corsair H55

4670k has a far inferior IHS material, otherwise it's the same chip.

[Hackentosher]

Well it's a sad day, it appears that my cpu just can't handle 4.4ghz anymore looks pretty stable at 3.8.