IIAMA refresh 144HZ - but one time booted with lower value - question

[Temple30]

Hello.
My pc:
*Asus Z170-P with 6700K cpu

*Corsair 750 RM

*Gtx 1080 Ti Founder Edition

*Monitor Red Eagle IIyama 24' 1080p 144hz plugged by display port cable to GFX.

Few days ago i get power outage. Power outage was because fuse was tripped because of kitchen which was turned on in other room.

When i run pc first time on first boot ( after power outage ) refresh was normal at start 144hz.
When i manually turn off computer and turn on again,and on my second boot it happened. Refresh was lower than 144hz. To make again 144hz i turned off monitor and turn back on again.

So that was bug or that power outage related?

But i like i said on my first pc run ( boot ) after power outage refresh was 144hz fine. It happened just after i normally shutdown my pc and booted pc second time.

Maybe coincidence and i am worrying for nothing,hehe ?

So conclusion: It happened not just after ( not on pc first power on ) power outage.
But on second time ( second turn ) when i boot to Windows 10.




PS: I tried to reproduce only 3 times by cutting power to pc and powering on and booting again, but 144hz on start. Not able to reproduce.



Maybe coincidence and i am worrying for nothing?

 

[Firebirds]

When I first bought my PG279Q which I run at 144Hz for the most part (sometimes 165), I experienced a similar issue to you whereby the refresh rate would lock at 85Hz and there was nothing I could do.

After a bit of digging, I found similar problems around the web with the common culprit being the Asus supplied DisplayPort cable. I had a spare from a top-end Dell panel that was fitted with ferrite chokes and swapped them out. Never had the issue since.

Might not be your issue but if you've got access to a high quality cable to swap or borrow to test, try that first.

 

[tolagarf]

When I first bought my PG279Q which I run at 144Hz for the most part (sometimes 165), I experienced a similar issue to you whereby the refresh rate would lock at 85Hz and there was nothing I could do.

After a bit of digging, I found similar problems around the web with the common culprit being the Asus supplied DisplayPort cable. I had a spare from a top-end Dell panel that was fitted with ferrite chokes and swapped them out. Never had the issue since.

Might not be your issue but if you've got access to a high quality cable to swap or borrow to test, try that first.

Yep I had the same issue. But it really depends on the graphics card, as a GTX 970 would run 144 Hz with that Asus cable just fine, but a 980 Ti wouldn't. HAd to buy a certified 4K ready DP cable. And the reason for that whole problem, is there just isn't enough copper in the cable.

 

[Firebirds]

Totally agree. The difference in thickness and heft between the Asus and Dell cables was remarkable. I was left a little disappointed that such a low quality cable was bundled with an £800 Asus screen, even more so given the lower cost of the Dell screen and cable. If they can manage it on their margins, I'm sure Asus could.