PSA: Windows 10 Users/L4D2 Players, Don't Disable High Precision Event Timer (HPET)

[Dick_Kickem]

I disabled HPET in the control panel to try and fix some performance issues in Call of Duty: Black Ops, as advised by PCGamingWiki. I forgot I changed the setting for a couple of days and I was getting lower than usual performance with virtually everything. The frame rate was generally high, yet erratic, even in games that formerly had rock solid frame rates. Left 4 Dead 2 was the worst affected by this. Online matches would disconnect after just a few minutes and I would get all kinds of crazy lag spikes. After re-enabling HPET I was able to play an entire online match and the frame rate was solid at 144. I have Windows 10, GTX 16 series GPU and a 9th gen Intel Core CPU on an Asus Z390 board with a 144Hz G-Sync compatible monitor. If you have similar specs, avoid disabling HPET. Contrary to the advice of others, it will not help you.

[Shion_Erino]

well thankyou, i just about to disable it Lmao xD

[Xbye]

People will get varied results on varied system setups. A blanket statement applying to all of them isn't ideal.

[Dick_Kickem]

Originally posted by Xbye:

People will get varied results on varied system setups. A blanket statement applying to all of them isn't ideal.

I believe I did say if you have a system similar to mine, did I not?

[1986Hz]

https://www.youtube.com/watch?v=YssdyMOCLQU

[Dick_Kickem]

Originally posted by Searching.....:

https://www.youtube.com/watch?v=YssdyMOCLQU

This is a Ryzen system with a Vega 56. As I mentioned in my post, I have an Intel/Nvidia system and I am warning not only Left 4 Dead Players and Windows users, but Intel users more specifically. It's also not Left 4 Dead 2 in the video. The information contained in the video is therefore irrelevant but thanks for sharing anyway.

[Bing Chilling]

from testing there's no difference on my system (specs on profile)
from having it disabled and/or enabled, easily within margin of error numbers
the only game i can say actually benefit from disabling the feature was overwatch
and i haven't an idea why this is so,
but it's already pretty well known from googling around.
i'm yet to find another game that benefits from ether on or off.


though i mean try it for yourself. the worst that can happen is you might loose a few fps.
best case you gain some fps.

but if you are going to test it, make sure you are cpu bound in whatever game.
aswell. ideally you want to use benchmarks within games or atleast an environment that is actually the same through runs (like an empty map) don't go into multiplayer match,or in free roam of many games such as gta 5, or ACO, it would be far to different between runs. games with replay features are great for this though.
i see far to many people test multiplayer games that are completely different between runs
or in games such as gta 5 where so many variables can change the fps
then claim "x" setting made an improvement.

[Stuart]

If it's not broke don't fix it

[Dick_Kickem]

Originally posted by Stuart:

If it's not broke don't fix it :cozyhitman2:

Words of wisdom, Mr. Lahey

[Dick_Kickem]

Originally posted by ꧁꧂StoneYoda꧁꧂:

from testing there's no difference on my system (specs on profile)
from having it disabled and/or enabled, easily within margin of error numbers
the only game i can say actually benefit from disabling the feature was overwatch
and i haven't an idea why this is so,
but it's already pretty well known from googling around.
i'm yet to find another game that benefits from ether on or off.


though i mean try it for yourself. the worst that can happen is you might loose a few fps.
best case you gain some fps.

but if you are going to test it, make sure you are cpu bound in whatever game.
aswell. ideally you want to use benchmarks within games or atleast an environment that is actually the same through runs (like an empty map) don't go into multiplayer match,or in free roam of many games such as gta 5, or ACO, it would be far to different between runs. games with replay features are great for this though.
i see far to many people test multiplayer games that are completely different between runs
or in games such as gta 5 where so many variables can change the fps
then claim "x" setting made an improvement.

it made Left 4 Dead 2 basically unplayable for me, which is why I am posting a warning. I mean, teammates would teleport around, zombie would float in the air then the inevitable server disconnect would happen. Every single time.

[Dick_Kickem]

Originally posted by ꧁꧂StoneYoda꧁꧂:

from testing there's no difference on my system (specs on profile)
from having it disabled and/or enabled, easily within margin of error numbers
the only game i can say actually benefit from disabling the feature was overwatch
and i haven't an idea why this is so,
but it's already pretty well known from googling around.
i'm yet to find another game that benefits from ether on or off.


though i mean try it for yourself. the worst that can happen is you might loose a few fps.
best case you gain some fps.

but if you are going to test it, make sure you are cpu bound in whatever game.
aswell. ideally you want to use benchmarks within games or atleast an environment that is actually the same through runs (like an empty map) don't go into multiplayer match,or in free roam of many games such as gta 5, or ACO, it would be far to different between runs. games with replay features are great for this though.
i see far to many people test multiplayer games that are completely different between runs
or in games such as gta 5 where so many variables can change the fps
then claim "x" setting made an improvement.

I'm sure it's caused by HPET, btw, because I can reproduce the problem. I also forgot to mention I'm not really CPU bound in anything because my CPU is more powerful than my GPU.