BenQ UNIVERSAL 144Hz->220Hz OVERCLOCK for 1080p 144 Hz

Talk about overclocking displays at a higher refresh rate. This includes homebrew, 165Hz, QNIX, Catleap, Overlord Tempest, SEIKI displays, certain HDTVs, and other overclockable displays.
pasutazame
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Re: BenQ UNIVERSAL 144Hz->220Hz OVERCLOCK for 1080p 144 Hz

Post by pasutazame » 21 May 2021, 11:32

report zowie XL2430-144hz-2016

i Get around 200Hz 1080 without artifacts and around 215 + artifacts.
DP 1.4 with s-switch bug.
Also, for fullscreen ingames i needed to remove native resolution from cru detailed resolution.

Custom resolution in adm radeon software limited me on 200hz and working only for window/borderless modes.
ty guys, glhf

chumacher
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Re: BenQ UNIVERSAL 144Hz->220Hz OVERCLOCK for 144Hz 1080p

Post by chumacher » 31 May 2021, 18:22

Chief Blur Buster wrote:
12 Apr 2020, 13:05
sai_kiran wrote:
12 Apr 2020, 04:51
Can I overclock BenQ xl2546 ?
No.
why so strict no? Why not something like "yes if you find a way to bypass the firmware lock like with these earlier 144hz models"
or is there something more to this mr chief, do you know something that we don't ? but as a owner of xl2546 i would really like to try how high this panel can overclock.

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Re: BenQ UNIVERSAL 144Hz->220Hz OVERCLOCK for 1080p 144 Hz

Post by Chief Blur Buster » 01 Jun 2021, 15:04

The 240Hz BenQs are not overclockable, for two reasons.

(A) Unlike for the 1080p 144Hz BenQs, no trick, no jailbreak, and no hacks has ever been discovered for 240Hz BenQs to successfully overclock them.

(B) Also, as another datapoint to my pessimism -- the 240Hz BenQs are fixed-scanrate panels (see this post in Quick Frame Transport thread) are unoverclockable beyond their maximum scan velocity because of their internal scan conversion. The 240Hz BenQs and 1440p 144Hz BenQs use internal scan conversion, while all 144Hz 1080p BenQ panels are "horizontal-scanrate multisync".

A flexible scanrate panel (horizontal scanrate multisync) will speedup/slowdown its scanout to match its signal. Not all pixels refresh simultaneously -- it takes a finite time to refresh from first to last pixel. You can watch pixels refresh sequentially on the LCD panel surface in high speed videos of LCD refreshing.

The most big-margin overclockable panels are the panels that synchronizes its pixel refresh to the signal delivery in a 1:1 symmetric velocity -- like a Multisync CRT -- without internal scan conversion (full frame buffering-and-scanout at an independent velocity). I've seen 60Hz panels overclocked to 180Hz simply because they were horizontal scanrate multisync -- but unfortunately this is not what a 240Hz BenQ does, its scan converter will put a hard cap on max Hz even if the "OUT OF RANGE" firmware cop is defeated.

Very few 240Hz panels are horizontal scanrate multisync.
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       To support Blur Busters:
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       • List of G-SYNC Monitors
       • List of FreeSync Monitors
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chumacher
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Re: BenQ UNIVERSAL 144Hz->220Hz OVERCLOCK for 1080p 144 Hz

Post by chumacher » 10 Jun 2021, 06:32

Chief Blur Buster wrote:
01 Jun 2021, 15:04
The 240Hz BenQs are not overclockable, for two reasons.

(A) Unlike for the 1080p 144Hz BenQs, no trick, no jailbreak, and no hacks has ever been discovered for 240Hz BenQs to successfully overclock them.

(B) Also, as another datapoint to my pessimism -- the 240Hz BenQs are fixed-scanrate panels (see this post in Quick Frame Transport thread) are unoverclockable beyond their maximum scan velocity because of their internal scan conversion. The 240Hz BenQs and 1440p 144Hz BenQs use internal scan conversion, while all 144Hz 1080p BenQ panels are "horizontal-scanrate multisync".

A flexible scanrate panel (horizontal scanrate multisync) will speedup/slowdown its scanout to match its signal. Not all pixels refresh simultaneously -- it takes a finite time to refresh from first to last pixel. You can watch pixels refresh sequentially on the LCD panel surface in high speed videos of LCD refreshing.

The most big-margin overclockable panels are the panels that synchronizes its pixel refresh to the signal delivery in a 1:1 symmetric velocity -- like a Multisync CRT -- without internal scan conversion (full frame buffering-and-scanout at an independent velocity). I've seen 60Hz panels overclocked to 180Hz simply because they were horizontal scanrate multisync -- but unfortunately this is not what a 240Hz BenQ does, its scan converter will put a hard cap on max Hz even if the "OUT OF RANGE" firmware cop is defeated.

Very few 240Hz panels are horizontal scanrate multisync.
Thank you for most professional answer I could get over the internet. Have a nice summer Mr. Chief Blur Buster!

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Re: BenQ UNIVERSAL 144Hz->220Hz OVERCLOCK for 1080p 144 Hz

Post by Chief Blur Buster » 10 Jun 2021, 22:36

chumacher wrote:
10 Jun 2021, 06:32
Thank you for most professional answer I could get over the internet. Have a nice summer Mr. Chief Blur Buster!
You too!
Head of Blur Busters - BlurBusters.com | TestUFO.com | Follow @BlurBusters on Twitter

       To support Blur Busters:
       • Official List of Best Gaming Monitors
       • List of G-SYNC Monitors
       • List of FreeSync Monitors
       • List of Ultrawide Monitors

Gianvaldo
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Re: BenQ UNIVERSAL 144Hz->220Hz OVERCLOCK for 1080p 144 Hz

Post by Gianvaldo » 17 Jun 2021, 12:28

Hello boys, I have a XL2411P, I can't overclock my monitor over than 150hz, I tried everything with AntiOutOfRange, OORBuster but nothing works for me. Someone wins that war against "Out of range"?

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