Presenting the ZOWIE XL2540 240Hz

[r01d]

Hello guys,

im rather new here, had a XL2411T before but now i switched to this one. I have a few questions and would be glad if you could help.

1. Which AREA/INTENSITY Settings are the best for high fps gaming (quake/csgo)
2. How can i go past the 600mhz pixeclock break? (Running displayport atm.) Cant go above 1218 VT eventhough i did HT 2080.... Do I need a pixel clock patcher? (Nvidia User)
3. Shall i switch to dvi-d? I remember when running the xl2411t people said that this is better input lag wise...

I would be really graceful if somebody would be willing to help. Maybe some1 can help me with TeamViewer?
Thanks in advance!!!!
Kind regards

[Falkentyne]

Area? All I can tell you is, 100 has 1 frame lower inputlag than 000, 000 will have slightly less crosstalk but 1 frame higher input lag. That is ASSUMING the Area value functions like it did in the XL2430T, XL2730, XL2735, etc.

This monitor MAY respond to improved crosstalk from increasing the vertical total. I don't have this monitor so I can't help you or give you advice on it. Some people tested it and said crosstalk improves with a higher VT value.

I know on the XL2735, VT tweaks have been tested up to 1825 with massively reduced crosstalk, but that is a 1440p monitor but the scaler is the exact same as this one (Realtek 2796BF).

You will have to test that yourself with alien invasion full screen (F11) at different VT values.

http://www.testufo.com/#test=photo&phot ... &height=-1

Blur reduction is partially bugged on this monitor as it wasn't advertised to support it. The Intensity value does NOTHING for changing persistence, it just changes brightness. Maybe it will work at 100hz or 120hz, I don't know. But at 240hz, Intensity does absolutely nothing except change brightness; Persistence/blur reduction amount does not change at all.

[r01d]

Area? All I can tell you is, 100 has 1 frame lower inputlag than 000, 000 will have slightly less crosstalk but 1 frame higher input lag. That is ASSUMING the Area value functions like it did in the XL2430T, XL2730, XL2735, etc.

This monitor MAY respond to improved crosstalk from increasing the vertical total. I don't have this monitor so I can't help you or give you advice on it. Some people tested it and said crosstalk improves with a higher VT value.

I know on the XL2735, VT tweaks have been tested up to 1825 with massively reduced crosstalk, but that is a 1440p monitor but the scaler is the exact same as this one (Realtek 2796BF).

You will have to test that yourself with alien invasion full screen (F11) at different VT values.

http://www.testufo.com/#test=photo&phot ... &height=-1

Blur reduction is partially bugged on this monitor as it wasn't advertised to support it. The Intensity value does NOTHING for changing persistence, it just changes brightness. Maybe it will work at 100hz or 120hz, I don't know. But at 240hz, Intensity does absolutely nothing except change brightness; Persistence/blur reduction amount does not change at all.

I have not been able to overclock it past 1218 VT... dunno why but i always get out of sync over that value (600mhz barrier)...

Thanks for the valid Info, i have put area to 100 an intensity to 10, any other settings, that can be generally recommended for fps gaming? e.g. low Input lag/blur reduction etc.

cheers

[Falkentyne]

Try a lower refreshrate. I don't think you can use a high VT at 240hz.
Try 100hz or 120hz and see how high you can go.

[Q83Ia7ta]

Try a lower refreshrate. I don't think you can use a high VT at 240hz.
Try 100hz or 120hz and see how high you can go.

Buying 240Hz monitor and setting 100/120Hz for higher VT? :]

[Falkentyne]

He was saying he couldn't go past 1200 VT. I assume that's similar to the 144hz Benq monitors not being able to go much past 1098 VT And I don't have a Benq XL2735 (I wish I did but NO 60hz single strobe=no buy...)

[StrobeMaster]

Area? All I can tell you is, 100 has 1 frame lower inputlag than 000, 000 will have slightly less crosstalk but 1 frame higher input lag. That is ASSUMING the Area value functions like it did in the XL2430T, XL2730, XL2735, etc.

[...]

Blur reduction is partially bugged on this monitor as it wasn't advertised to support it. The Intensity value does NOTHING for changing persistence, it just changes brightness. Maybe it will work at 100hz or 120hz, I don't know. But at 240hz, Intensity does absolutely nothing except change brightness; Persistence/blur reduction amount does not change at all.

You are referring to this post, I guess (http://forums.blurbusters.com/viewtopic ... 110#p23868), which mentions firmware version "V001 20160808".
I cannot confirm this for firmware v2 ("V002 20161101" according to the service menu, manufacturing date November 2016 according to the sticker at the back of the monitor). BTW, I can read the firmware but haven't tried writing it (RT809F programmer with the new 20170113 software update).
INTENSITY results in pulse widths from 0.1ms (INTENSITY=25) to 2.1ms (INTENSITY=1) at 120Hz, or 0.04ms to 1.04ms respectively at 240Hz. I would be careful with the low INTENSITY values (i.e., high intensity - BenQ logic), as the LED current in MBR mode is boosted to about 360% of the normal mode (Brightness set to 100% in both cases). So setting Brightness to 100% and using MBR with maximum pulse width (INTENSITY=1) might take its toll on LED lifetime.

EDIT: This confirms that MBR works in the way it is designed to work, i.e the backlight strobes and INTENSITY modulates the strobe duration. I am not making any claims about subjectively perceived differences in motion clarity for different INTENSITYs. There is an effect between MBR on and off, as already shown by the UFO screenshots earlier in this thread, but whether changes in strobe duration would make any difference in the motion clarity percept is a different story. So maybe the above-mentionned post was just about not perceiving such differences anymore at 240Hz, which seems plausible and doesn't mean that MBR has no perceivable effect at 240Hz at all. At least for me it improves motion clarity a bit. EDIT_END

As far as the AREA setting goes: If AREA=0, the backlight strobe starts with the first pixel line; for AREA=100 and strobe starts late and basically ends with the first line (of the next frame so to speak).
BTW, MBR can also be controlled with DDC/MCCS commands (40h: on/off, 41h: INTENSITY, 42h: AREA).

Ah, Falkentyne, before you ask: no strobing at 50,59,60Hz - sorry.

[Falkentyne]

Thanks, Strobemaster. So V2 firmware is fixed, then. The other users must have V1.
And in typical Benq fashion, they make no notice of this update and no way for users to update their V1 monitors. ~__~\\

BTW strobemaster, you still have your XL2735, right?
Have you tried enabling freesync by adding the freesync range in the extension block? (this apparently works on the xl2540 even though this monitor isn't even advertised as supporting freesync on Benq's website). The XL2735 has the exact same scaler (Realtek 2796BF) so I would assume this would work.

Yeah no 60hz strobing is a dealbreaker for me right now. I'm going through the Dark Souls games and they're locked to 60hz. The strobing on my XL2720Z makes them look really good.

I did post on Benq's twitter about the lack of 60hz strobing on their recent monitors when Chief made a post there.

*Edit* Strobemaster: Any chance you can upload your V2 firmware bin file?

[StrobeMaster]

BTW strobemaster, you still have your XL2735, right?
Have you tried enabling freesync by adding the freesync range in the extension block? (this apparently works on the xl2540 even though this monitor isn't even advertised as supporting freesync on Benq's website). The XL2735 has the exact same scaler (Realtek 2796BF) so I would assume this would work.

Yes, I still have it, but I am not so much interested in FreeSync so I have not tried. BTW, it is "2796B" for the XL2735 [EDIT: wrong; I meant the XL2730Z], and "2796BF" for the XL2540, at least according to the service menus. I don't know though what the difference might be.

*Edit* Strobemaster: Any chance you can upload your V2 firmware bin file?

Here it is: BenQ XL2540 - FW V002 20161101.bin.

[Falkentyne]

Thank you very much! I got your email about the XL2735 also. I'm still not going to pull the trigger on this monitor especially if I have to mess with the OD Gain setting to get decent overdrive. Maybe if Amazon has a big sale on it in the future...