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ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Posted: 15 Dec 2020, 03:14
by Chief Blur Buster
nuninho1980 wrote:
12 Dec 2020, 12:12
Can ASUS ROG SWIFT 360Hz PG259QN work 50Hz and 60Hz single strobe (but "hack" needed)?
Just tested to find out. The answer is yes.

ASUS PG259QN Supports Single Strobe ULMB 50 Hz and ULMB 60 Hz

I just tested now. PG259QN 360Hz still supports the Custom ULMB Hack.

50 Hz single strobe -- works, I tested these timings on my PG259QN via NVIDIA Control Panel:

The problem is it's extremely hard for newbies to calculate (multiple steps) and extremely hard to do in ToastyX (timings didn't save properly), but here are instructions.
1. I used the method found in the old FAQ ULMB 60 Hz Hack, then I screenshotted the ToastyX numbers.
2. Then I recreated it directly via NVIDIA Control Panel (Manual method)....and it worked!

You have to use the exact Pixel Clock of a working ULMB refresh rate and keep increasing Vertical Total (to increase the Pixel Clock and lower ULMB refresh rate) until you successfully get the low-Hz ULMB. Don't edit the refresh rate, you have to keep increasing Vertical Total until you reach your target refresh rate. You need to achieve as close as possible to exactly 346.4240 MHz pixel clock (via ULMB 144Hz timings) with any sub-144Hz ULMB refresh rates, and you need to achieve exactly 597.7800 MHz pixel clock (via ULMB 240Hz timings) with any sub-240Hz ULMB refresh rates.

50Hz Single Strobe Timings for ASUS PG259QN (derived from 144Hz ULMB)

NVIDIA Control Panel
Image

60Hz Single Strobe Timings for ASUS PG259QN (derived from 144Hz ULMB)

NVIDIA Control Panel
Image

I did not test the 50Hz & 60Hz single strobe timings derived from 240Hz ULMB at this time, but theoretically those should work too.

If you wish to purchase the PG259QN via Blur Busters amazon affiliate to thank me for doing this test for you:
ASUS PG259QN from one of USA Amazon Sellers
ASUS PG259QN from Amazon USA
ASUS PG259QN from Amazon UK
(Disclosure: Purchase via Blur Busters Amazon Affiliate links will send a few % commission to Blur Busters)

Re: ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Posted: 17 Dec 2020, 06:43
by elexor
curious do crazy high VT's work on that monitor? 6000+ that would allow it to use it's full scanout speed and maximize pixel settling time.

Re: ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Posted: 17 Dec 2020, 08:04
by elexor
Also please post some pursuit photo's of that beast single strobing I wanna see how a fast ips matches up to my tn.

Re: ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Posted: 17 Dec 2020, 08:14
by AddictFPS
elexor wrote:
17 Dec 2020, 06:43
to use it's full scanout speed
+1 Hope Chief can discover ways to take 360Hz scanout speed and tweak strobe phase. Would be a next gen strobing monitor.

Chief, you can talk a bit about motion quality in these 50/60Hz freqs with this "144Hz scanout" VT tweak ? similar crosstalk/brightness ratio of BenQ XL2411P ?

Thanks You !