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Wierd hz change problem

 
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post #1 of 5 (permalink) Old 05-20-2019, 09:42 AM - Thread Starter
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Wierd hz change problem

So i have this wierd problem that is bumming me out...

When i power on my pc, then sometimes my current screen settings has been changed to 32 hz and i can only choose 30-24 hz.
or 82 hz being the max hz rate i can choose on my pg27uq asus 4 k screen.

When i shutdown the pc and boot up again, then i can choose all the hz up to 120/144 OC

Im using a 2080 rtx ti aorus extreme 11g card and a pg27uq 4 k asus monitor. with DP cable
But this only happens sometimes when i boot up. So im guessing it could be something with power or "handshake"
problem with the screen and gfx card.

My settings is 3840 x 2160 - 98 hz - 10 bpc - Full RGB and it seems to work fine when it actualy boots up
with these settings. " dosemt matter if HDR is on or off.

The monitor and gfx card is brand new and all drivers are up to date.

I posted this on other forums aswell and there was 2 other people that that had similar problem just using another 2080 rtx ti brand like evga and a acer 27x 4 k monitor ( the pg27uq : acer version )
For now i created a RMA case and im gona send it back to Gigabyte for testing.

Also i found out that i dont need to reboot the pc. I can just reset the monitor options in the OSD but this only fix it here an dnow until next tim ei reboot then there is a russian roulette chance one of these hz modes will apear.

But i still want to share this with others and hear if this is a rare problem beside artifacts and crashing and black screen problems
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Asus formula IX ROG ( windows 10 - 64 bit )
I7 7700k Kabylake
coolermaster Mastercase pro 5
G skill 32 GB ddr3 3200 hz
2080 rtx to Oc auros extreme 11g
1200 w psu seasonic modular
PG27UQ asus 4 k monitor

Last edited by Psycrow; 05-20-2019 at 10:23 AM.
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post #2 of 5 (permalink) Old 05-23-2019, 10:07 AM - Thread Starter
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Bump

Asus formula IX ROG ( windows 10 - 64 bit )
I7 7700k Kabylake
coolermaster Mastercase pro 5
G skill 32 GB ddr3 3200 hz
2080 rtx to Oc auros extreme 11g
1200 w psu seasonic modular
PG27UQ asus 4 k monitor
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post #3 of 5 (permalink) Old 05-23-2019, 10:35 AM
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What is the length of the DP cable you're using?
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post #4 of 5 (permalink) Old 05-23-2019, 11:22 AM
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post #5 of 5 (permalink) Old 05-24-2019, 08:44 AM - Thread Starter
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Yes i used the one from Asus and then i bought another cable on 2 m that was a new version of DP
So im sure its not the cable.

I tryed using onboard Gfx card using 60 hz with intels monitor engine ( Nvidia was disable)
And the settings stayed on 60 hz no matter what i did to trigger the problem.

Now i borrowed a 950 gtx and i can use 4 k res up to 98 hz 8 bpc 4,2,2 or i can use 82 hz full RGB 8 bpc
Then i tryed to trigger the problem by making the monitor refresh it self and i tryed to reboot few times.
The hz dosent change after i set it to 82 hz 8 bpc RGB.

https://www.geforce.com/hardware/des...specifications

Asus formula IX ROG ( windows 10 - 64 bit )
I7 7700k Kabylake
coolermaster Mastercase pro 5
G skill 32 GB ddr3 3200 hz
2080 rtx to Oc auros extreme 11g
1200 w psu seasonic modular
PG27UQ asus 4 k monitor
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