Running i9 9900k for prolonged periods at 100 percent load

[opelly]

I have been using my i9 9900k to render for a free online Blender render farm called SheepIt. I have heard that running on a 100 percent all core load for long periods of time can be bad for the long term health of the CPU, so I have under-clocked it 4.2ghz instead of the regular turbo of 4.7ghz. The package temp hovers around 65-67 C. I was wondering if running at these relatively low temperatures will shorten the life of the CPU noticeably?

[Guiltyxz]

Should be fine as long as it stays cool, definitely use an AIO liquid cooler, ideally a custom loop

[Electronics Wizardy]

Its fine. Cpus can run at 100% for extended periosds without issue. Those temps are fine aswell.

[xg32]

it'll be fine, 4.2 will probably run around 1v 65w if u wish to optimize it further.

[opelly]

1 hour ago, xg32 said:

it'll be fine, 4.2 will probably run around 1v 65w if u wish to optimize it further.

Would you consider that a good speed to temperature trade off? 

[xg32]

1 hour ago, opelly said:

Would you consider that a good speed to temperature trade off? 

i think 4.5-4.7 with optimized voltage is fine, imho 4.2 is a bit of overcompensating, but if ur gonna run it 24/7, whatever you are comfortable with. Anything below 75C i never worry.

[Tristerin]

Heat (or massive voltage spikes) degrade silicone.  Mitigate the heat and the CPU will do what its supposed to do, for as long as the life of that CPU.

 

No need to downclock anything unless you aren't keeping it under its max threshold.

[Falkentyne]

4 hours ago, opelly said:

I have been using my i9 9900k to render for a free online Blender render farm called SheepIt. I have heard that running on a 100 percent all core load for long periods of time can be bad for the long term health of the CPU, so I have under-clocked it 4.2ghz instead of the regular turbo of 4.7ghz. The package temp hovers around 65-67 C. I was wondering if running at these relatively low temperatures will shorten the life of the CPU noticeably?

The only thing unsafe is running at high volts, high temps and high amounts of loadline calibration at the same time.

The CPU thermal throttles for a reason.  As long as this protection isn't bypassed and you aren't overclocking, you're going to be fine.

Also note that high current degrades silicon, and high current + high heat degrades it faster.  If you don't go too close to the max amps rating, and keep the voltage and temps low, you are safe.

 

Voltage by itself (without current) won't degrade anything until it passes a certain point, (which is HEAVILY dependent on if you exceeded Intel spec loadline calibration or not).  That's because there is a point where, at a certain voltage, even a low amount of current will cause degradation.

 

You can also go so high on the voltage that you simply blast through the oxide gates and the chip is destroyed.  You see this happening to people doing LN2 runs above 1.65v sometimes.

[TahoeDust]

You could bounce that thing off the thermal limit for years at the stock clocks.  Chips are not as fragile as many want to believe. 

[cesh me inside b0z]

1 minute ago, TahoeDust said:

You could bounce that thing off the thermal limit for years at the stock clocks.  Chips are not as fragile as many want to believe. 

Agree *throws FX 8350 at the wall*