is this safe

[ImRyan]

is it safe to leave my pc on for 18 hours at 100% cpu load

 

i have i7 3770k at stock and a corsair h100

[PlayStation 2]

As long as temps and voltages stay stable or at a good point, yes.

[SwingLifeAway92]

If temps are rather high and above h100 recommended heat levels it's not the best idea as you'll shorten the life of the aio from evaporating water. However, so long as your cpu isn't the surface of the sun should be good

[ImRyan]

1 minute ago, SwingLifeAway92 said:

If temps are rather high and above h100 recommended heat levels it's not the best idea as you'll shorten the life of the aio from evaporating water. However, so long as your cpu isn't the surface of the sun should be good

cpu is at 61 is that ok

[Cyberspirit]

2 minutes ago, ImRyan said:

cpu is at 61 is that ok

Yeah that's fine. I had mine running a stress test for 24 hours when i Overclocked it and as others said as long as the temps aren't too high you'll be fine.

[givingtnt]

11 minutes ago, ImRyan said:

is it safe to leave my pc on for 18 hours at 100% cpu load

 

i have i7 3770k at stock and a corsair h100

defenitivly.

 

about doing it every day tho. idk.

 

[knightslugger]

19 minutes ago, ImRyan said:

is it safe to leave my pc on for 18 hours at 100% cpu load

 

i have i7 3770k at stock and a corsair h100

i've had my Ryzen system and my intel system running full tilt for the last week. both CPUs are in the low 60's, intel on a stock cooler, Ryzen with a PureRock. 1070 FTW GPU on the intel is in a cold room and sits at about 40*, 1080ti is NZXT AIO cooled on a 280mm rad and sits around 38*C in a bedroom.

 

you're fine.

[BloodyWaters]

As long as the temps are fine. 

[Sa1tama]

I generally do this:

If average temp is more than 65-70 

i just shut it off like in 1 hr.

If lower no problemo.

[TheCherryKing]

It's safe at that temperature. Keep in mind Intel Core processors are not designed to run 24 hours a day at full load.

[GDRRiley]

1 minute ago, TheCherryKing said:

It's safe at that temperature. Keep in mind Intel Core processors are not designed to run 24 hours a day at full load.

true but under light load will last for 10-15 years, so pushing them hard will only cut a few years off.

[AncientNerd]

1 hour ago, TheCherryKing said:

It's safe at that temperature. Keep in mind Intel Core processors are not designed to run 24 hours a day at full load.

Okay can you tell me why? As far as I can tell - and I have run systems 24/7 for years w/o a problem both at home and work - the problem is temperature and voltage. If you are not pushing either beyond spec. then it shouldn't matter how long/hard you run the CPU because it is running anyway. Not running as hard, but running. As long as the CPU is powered with an OS running it is turning cycles, so as long as it stays within spec. what is different between "full load" and something less?

 

I don't see a difference personally. 

[TheCherryKing]

32 minutes ago, AncientNerd said:

Okay can you tell me why? As far as I can tell - and I have run systems 24/7 for years w/o a problem both at home and work - the problem is temperature and voltage. If you are not pushing either beyond spec. then it shouldn't matter how long/hard you run the CPU because it is running anyway. Not running as hard, but running. As long as the CPU is powered with an OS running it is turning cycles, so as long as it stays within spec. what is different between "full load" and something less?

 

I don't see a difference personally. 

The Intel Xeon CPU's exist for a reason. They don't get very hot and most of them are low power consumption. The Intel Core CPU's run hotter and are not designed to run 24/7. Yes, it is possible to run an Intel Core processor 24/7 but it may not last as long as Intel intended. 

[knightslugger]

59 minutes ago, TheCherryKing said:

The Intel Xeon CPU's exist for a reason.

yeah, HIGH RELIABILITY AND STABILITY for MISSION CRITICAL applications.

[TheCherryKing]

1 minute ago, knightslugger said:

yeah, HIGH RELIABILITY AND STABILITY for MISSION CRITICAL applications.

High reliability and stability are important for a computer running 24/7.

[knightslugger]

Just now, TheCherryKing said:

High reliability and stability are important for a computer running 24/7.

Are you trying to make a counterpoint here?

 

Xeons do not exist simply because they are built to run 24/7. Because they exist does not mean that a consumer chip cannot also. They exist because enterprise needs them to do enterprise things that consumer chips cannot.

[Kamina]

Yup. Imagine if you were rendering a really long video.

[Vantage9]

1 hour ago, AncientNerd said:

Okay can you tell me why? As far as I can tell - and I have run systems 24/7 for years w/o a problem both at home and work - the problem is temperature and voltage. If you are not pushing either beyond spec. then it shouldn't matter how long/hard you run the CPU because it is running anyway. Not running as hard, but running. As long as the CPU is powered with an OS running it is turning cycles, so as long as it stays within spec. what is different between "full load" and something less?

 

I don't see a difference personally. 

The best analogy i can think of is a car engine.  

 

An engine left running at idle uses some fuel and puts off some heat.  The wear and tear on an engine running at idle is virtually nothing, and a given engine could idle for years on end given unlimited fuel.

 

An engine running near redline RPM uses SIGNIFICANTLY more fuel and puts off way more heat.  The wear and tear on a redlining engine is exponentially more than at idle RMP.  With unlimited fuel, the same engine might only run for a few weeks at redline RPM.**

 

**This is just a hypothetical as an example, please don't start quoting engine life figures to me.

 

As long as the engine is under its redine, we're technically "within spec", but to think you'll get the same engine life out of idling vs near redline is absurd.  Electricity and voltage going through a processor has the same effect - more of it equals more wear and tear.

[knightslugger]

10 minutes ago, Vantage9 said:

Electricity and voltage going through a processor has the same effect - more of it equals more wear and tear.

so for the love of god people, DON'T TURN ON YOUR COMPUTER.

 

it might not last forever!

[Vantage9]

3 minutes ago, knightslugger said:

so for the love of god people, DON'T TURN ON YOUR COMPUTER.

 

it might not last forever!

I think the apt warning is more like, Don't run 24/7 stress tests at 100% CPU load for no reason and expect your CPU to last just as long.

 

Same thing goes for GPUs.  This is basically the entire reason you see people selling used parts say "never been used for cryptomining".  Because cryptomining is the equivalent of a 24/7 stress test when its comes to voltage and heat.

 

[AncientNerd]

11 minutes ago, Vantage9 said:

The best analogy i can think of is a car engine.  

 

An engine left running at idle uses some fuel and puts off some heat.  The wear and tear on an engine running at idle is virtually nothing, and a given engine could idle for years on end given unlimited fuel.

 

An engine running near redline RPM uses SIGNIFICANTLY more fuel and puts off way more heat.  The wear and tear on a redlining engine is exponentially more than at idle RMP.  With unlimited fuel, the same engine might only run for a few weeks at redline RPM.**

 

**This is just a hypothetical as an example, please don't start quoting engine life figures to me.

 

As long as the engine is under its redine, we're technically "within spec", but to think you'll get the same engine life out of idling vs near redline is absurd.  Electricity and voltage going through a processor has the same effect - more of it equals more wear and tear.

The thing is I would buy this if electronics were more like mechanical parts, with moving parts and needing lubricant etc. But electronics are not like that electrons flowing through a circuit are basically the same unless you are running at higher voltage or current levels. So, unless I completely misunderstood my long ago EE courses in college, while you are under the voltage, current and heat specifications then your lifespan will be similar if not quite identical. The engine analogy breaks down because an engine "redline" is not the equivalent of  in spec. its the equivalent of "the shut down temp" of the processor - the "things start breaking beyond this point".

[AncientNerd]

1 minute ago, Vantage9 said:

I think the apt warning is more like, Don't run 24/7 stress tests at 100% CPU load for no reason and expect your CPU to last just as long.

 

Same thing goes for GPUs.  This is basically the entire reason you see people selling used parts say "never been used for cryptomining".  Because cryptomining is the equivalent of a 24/7 stress test when its comes to voltage and heat.

 

The important thing here is "voltage and heat. ". You can run at 100% CPU usage all day as long as your voltage and heat are in normal ranges. It is when you push those two values that things start going bad - either faster or slower depending on how hard you push it.

 

Basically I think we are saying the same thing - "If you are heavily over clocked then you can't run 100% 24/7 w/o some impact on lifespan" however if you are running in spec run at 100% all day every day and things should be fine. 

[Vantage9]

Meh, kinda nitpicking there a bit.  No analogy is perfect, but it holds pretty well.

 

I did say "near redline".  Technically you're not exceeding an engine's spec's until you pass redline.  This is VERY similar to the stock clock speeds of a CPU, which we push beyond redline all the time by overclocking.  So to be honest any analogy can be picked apart.

 

The point is this, a CPU that is running at idle, maybe 5-15% usage or something, is drawing significantly less power and putting off significantly less heat than a CPU under load.  So while they are both "under specifications", the actual outcome and effect on lifespan will be far from identical. 

 

This is also all ignoring the concept of the 'Silicon Lottery', in that not all chips are created equal - even when they have identical specs.  But the point is, these are all generalizations trying to get across a larger concept - using something harder makes it last less, even if that "harder" is within its rated specs.  This is true for virtually all things.

[Vantage9]

3 minutes ago, AncientNerd said:

Basically I think we are saying the same thing - "If you are heavily over clocked then you can't run 100% 24/7 w/o some impact on lifespan" however if you are running in spec run at 100% all day every day and things should be fine. 

 

Quite the opposite.  If you're running at 100% CPU use, then you are putting way more voltage and heat through that CPU than someone who leaves their computer running 24/7 but is only occasionally under full load.  As a result, the person with a CPU under constant full load will typically see their CPU have a shorter lifespan.  

 

Again, this is about law of averages, because not all silicon is created equal.

[TheCherryKing]

2 hours ago, knightslugger said:

Are you trying to make a counterpoint here?

 

Xeons do not exist simply because they are built to run 24/7. Because they exist does not mean that a consumer chip cannot also. They exist because enterprise needs them to do enterprise things that consumer chips cannot.

I am well aware that Xeons are designed for more than 24/7 operation. I stated earlier that a consumer chip can also run 24/7 although it is not designed to.