PC performance correlated with relative humidity?

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ultraknur

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Hi all,

For a very long time I am facing a problem that seems to be unfixable (at least on my side). My high-end PC and its peripherials don't work like it should in means of responsiveness and smoothness. I don't think I would have realized the problem was happening if I hadn't experienced in gaming cafe what games should actually look like on a high-end gaming PC. From the first clicks on my brand new PC I knew, that something was wrong. It's not reacting fast enough, also screen is not smooth as 240Hz should be and gameplay is off, like not synced with a server (error correction causing delay/input lag?). I've changed every part of my PC, even chassis which is already ridiculous, but so far nothing helped. After I realized that it's not about PC components, internet connection and settings, I started to look for the cause in the electricity provided to my building. I tried to make a choke with multiple ferrite cores of material 31 separated for live and neutral. At the beginning I could feel the difference somehow but the issue came back. I tried Schaffner RFI filter but it didn't help at all. What is interesting I was able to find correlation between how my PC works and relative humidity which as we know is pretty harmful for transformers. Even today I spoke to my buddy that something was different at 14:00, for a long time (since summer and dry weather) I've never had such a good gaming experience but then I checked RH in my city and surprise:

kxrQpvF.png


wilgotność względna stands for relative humidity but I think it's obvious

This is not the first time I noticed it.


I commissioned my power company to perform electricity quality measurements and everything looks good except 15th harmonics which is still within the limits.

FpOHsN9.jpeg


Does anyone suspect what might be the cause of the problem?
 
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I can’t see how RH would make a difference other than possible cooling issues. The power supply in your PC, if it is under 10 years old, is likely “auto-ranging”, meaning it can accept anything from 100-280VAC. So it’s not likely that it’s an incoming power issue. When I have had issues Ike this, it turned out to be an inadequately sized power supply. The hardware systems now often have a detection method for power supply issues and if the voltage starts to drop, it automatically curtails the CPU. I would start there.
 
Thanks for the answer. Are you certain, that high sine wave distortions can't go through PSU filters? By the way my PSU is an overkill and I will be never able to reach even 80% of its size. I can't understand why any of my 144Hz and 240Hz monitors don't display motion with smoothness I experienced in another locations. I am sure it has nothing to do with screen technology, either IPS and TN are affected.

Regarding RH, it took about 2 years to see that correlation and I'm pretty sure it has something to do with it.
 
ActionDave said:
There is gonna be a lot of gamers in Florida and Texas that are gonna be disappointed when they find out they need to move to the desert.
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I am glad you enjoyed my thread.

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Barely exceedes 80% in Miami

rh1.png

During winter stays above 90% most of the time in my place. Beginning of October you can see pretty big drop and I remember that time well, because everything seemed to be fine, not perfect but fine. Also do not compare Florida, to ex Soviet Union country because ignorance in electricity matters is still doing well here.
 
Humidity? No, extremely doubtful that's the problem, more so if every part of the system has been replaced. On the other hand, a high-RF field could cause problems (it's also unhealthy for people). If you haven't taken the entire setup to a friend's place, humidity or not, then not all factors have been checked.
 
zbang said:
Humidity? No, extremely doubtful that's the problem, more so if every part of the system has been replaced. On the other hand, a high-RF field could cause problems (it's also unhealthy for people). If you haven't taken the entire setup to a friend's place, humidity or not, then not all factors have been checked.
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I live in vicinity of local radio broadcast station, ~200m away and I've heard that this can cause noise induction in the conductors but I need more opinions about that. Beside it, what would be the best and cheapest way to find out, that high RF field can be the case?


radio.png
 
zbang said:
Humidity? No, extremely doubtful that's the problem, more so if every part of the system has been replaced. On the other hand, a high-RF field could cause problems (it's also unhealthy for people). If you haven't taken the entire setup to a friend's place, humidity or not, then not all factors have been checked.
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Ooh, ooh, ooh! I have a possible correlation!

When the humidity is high, a neighbor stays indoors and yaks on his Ham radio all day, which bleeds more RF into the PC and causes it to slow down. When the humidity is lower, he goes fishing!
 
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