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X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or more

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.

X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or more

Postby Q83Ia7ta » 23 Sep 2015, 15:12

I’m sorry for my English.

I got X-Star DP2414LED several days ago just to overclock it and compare with my BenQ XL2411Z.
First of all I don’t like this strobed techs like LightBoost, ULMB, BenQ Blur Reduction and etc and I prefer to play fast twitched FPS. (Input lag is noticeable for me with strobe techs i tried LightBoost & BBR).
I’m also don’t need any Sync techs like FreeSync and G-SYNC. (FPS are 250 or more). Same with panel types. TN is enough for me.
No need to discuss this.
Someday I’ve found information about this monitors (QNIX QX2414LED & X-Star DP2414LED) at Blur Busters Forums and decided to try one of them. They are almost equal. The first one released was QNIX QX2414LED 144Hz 1.5ms with DVI-D only. The pros of DVI-D are may be less input lag and better chances to be overclocked. The next released was X-Star DP2414LED 144Hz 1ms with D-SUB/HDMI/DVI-D inputs and advertised ability to 185Hz overclock.

Overclocked to 185Hz and 200Hz. Got some scanlines at top right side of screen. At 200Hz monitor show white screen after 5-10-15 mins :( so I switched to advertised 185Hz. May be 185Hz because it’s stable.
What I can say for sure is that ghosting at 185Hz is much less than at 144Hz. Overdrive isn’t aggressive if exist :)
I’ve disassembled monitor to view at panel and scaler.
Panel is AUO M240HW01 V8. It’s same as in XL2411Z and in most of 24” 144Hz monitors.
Scaler (processor/main board) is different. May be it’s MST 2403 (MSTAR) - info from EDID.
Default 144Hz timings are:
"1920x1080" 328,890 1920 1968 2000 2080 1080 1084 1089 1098 +hsync +vsync
For XL2411Z timings are:
"1920x1080" 325,080 1920 1944 1976 2056 1080 1083 1088 1098 +hsync +vsync

At 200Hz horizontal scan rate (horizontal frequency) is ~220 kHz and pixel clock is 456 MHz.
EDID information:
Code: Select all
Monitor
  Model name............... DVI
  Manufacturer............. MST
  Plug and Play ID......... MST2403
  Serial number............ n/a
  Manufacture date......... 2015, ISO week 22
  Filter driver............ None
  -------------------------
  EDID revision............ 1.3
  Input signal type........ Digital
  Color bit depth.......... Undefined
  Display type............. RGB color
  Screen size.............. 530 x 300 mm (24,0 in)
  Power management......... Standby, Suspend, Active off/sleep
  Extension blocs.......... None
  -------------------------
  DDC/CI................... Supported
  MCCS revison............. 2.1
  Display technology....... TFT
  Controller............... Mstar
  Firmware revision........ 1.0
  Firmware flags........... 0x0000005A
  Active power on time..... Not supported
  Power consumption........ Not supported
  Current frequency........ 220,30kHz, 200,60Hz

Color characteristics
  Default color space...... Non-sRGB
  Display gamma............ 2,20
  Red chromaticity......... Rx 0,648 - Ry 0,339
  Green chromaticity....... Gx 0,292 - Gy 0,603
  Blue chromaticity........ Bx 0,143 - By 0,070
  White point (default).... Wx 0,313 - Wy 0,329
  Additional descriptors... None

Timing characteristics
  Range limits............. Not available
  GTF standard............. Not supported
  Additional descriptors... None
  Preferred timing......... Yes
  Native/preferred timing.. 1920x1080p at 144Hz (16:9)
    Modeline............... "1920x1080" 328,890 1920 1968 2000 2080 1080 1084 1089 1098 +hsync +vsync
  Detailed timing #1....... 1920x1080p at 60Hz (16:9)
    Modeline............... "1920x1080" 148,500 1920 1968 2000 2200 1080 1084 1089 1125 +hsync +vsync
  Detailed timing #2....... 1920x1080p at 100Hz (16:9)
    Modeline............... "1920x1080" 247,500 1920 1968 2000 2200 1080 1084 1089 1125 +hsync +vsync

Standard timings supported
     720 x  400p at  70Hz - IBM VGA
     640 x  480p at  60Hz - IBM VGA
     640 x  480p at  75Hz - VESA
     800 x  600p at  56Hz - VESA
     800 x  600p at  60Hz - VESA
     800 x  600p at  72Hz - VESA
     800 x  600p at  75Hz - VESA
    1024 x  768p at  60Hz - VESA
    1024 x  768p at  75Hz - VESA
    1280 x 1024p at  75Hz - VESA
     800 x  600p at 100Hz - VESA STD
    1024 x  768p at 100Hz - VESA STD
    1280 x 1024p at  60Hz - VESA STD
    1280 x 1024p at 100Hz - VESA STD
    1600 x  900p at  60Hz - VESA STD
    1600 x  900p at 100Hz - VESA STD
    1680 x 1050p at  60Hz - VESA STD
    1680 x 1050p at 100Hz - VESA STD

Report information
  Date generated........... 23.09.2015
  Software revision........ 2.90.0.1000
  Data source.............. Real-time 0x0011
  Operating system......... 6.2.9200.2

Raw data
  00,FF,FF,FF,FF,FF,FF,00,36,74,03,24,00,00,00,00,16,19,01,03,80,35,1E,78,EA,3D,85,A6,56,4A,9A,24,
  12,50,54,A7,CB,00,45,68,61,68,81,80,81,A8,A9,C0,A9,E8,B3,00,B3,28,79,80,80,A0,70,38,12,40,30,20,
  45,00,55,50,21,00,00,1E,02,3A,80,18,71,38,2D,40,30,20,45,00,55,50,21,00,00,1E,AE,60,80,18,71,38,
  2D,40,30,20,45,00,55,50,21,00,00,1E,00,00,00,FC,00,44,56,49,0A,20,20,20,20,20,20,20,20,20,00,8A


I need someone who can read Korean and say for sure is there any options to change overdrive setting in OSD? :) album with manual http://imgur.com/a/J6Dqz
Some photos with packaging, frameskipping test, scanlines, disassembled monitor and etc http://imgur.com/a/Jo496

Not sure
Hard to say is it better or worse than BenQ XL2411Z. Need some more game sessions.

Shipping to Saint Petersburg, Russia from South Korea took 5 days. Well done EMS. Good packaging and speed.
item is http://www.ebay.com/itm/221822303311 and seller called dream-seller.
Q83Ia7ta
 
Posts: 594
Joined: 18 Dec 2013, 09:29

Re: X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or mor

Postby Q83Ia7ta » 23 Sep 2015, 18:48

Another 185Hz timings:
http://i.imgur.com/yefnkb5.jpg
Image
Q83Ia7ta
 
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Re: X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or mor

Postby lexlazootin » 25 Sep 2015, 03:34

I wonder if the crashing at 200hz is a heat problem? wonder if you can stick a fan in there to keep it running because that would be cool.
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Re: X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or mor

Postby Q83Ia7ta » 25 Sep 2015, 09:44

lexlazootin wrote:I wonder if the crashing at 200hz is a heat problem? wonder if you can stick a fan in there to keep it running because that would be cool.

Best I can do there is to to substitute cheap passive radiator to a better one and add holes to case :)

this one:
http://i.imgur.com/dyM2ZSI.jpg

Thanks for idea.
Q83Ia7ta
 
Posts: 594
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Re: X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or mor

Postby Falkentyne » 25 Sep 2015, 17:21

I am too jealous now :(

Can't get higher than 130hz with normal timings on XL2720Z regardless what I try. :(
can't get higher than 145hz with reduced Vblank either. Seems like firmware is locked. Pretty sure its NOT scaler limit because Benq XL2720Z, XL2420Z and XL2411Z can do 2560x1440 via edid override and OSD reports 2560x1440 if you use VT 1497-1502 and reduce HT to 2656.

Sorry to thread hijack.
I assume this is not EDID limit but firmware lock (I know Asus VG248QE can do 150hz also but NOT at 1920x1080, it can do it at 1280x720 and another lower resolution with different timings).

Anyone know bios modification to enable higher refresh rate for benq XL2720Z V4 or (new dump) V5 firmware? Or can EDID edit allow this? You can hex edit raw bin firmware but without knowing how code is....:(
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Re: X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or mor

Postby Q83Ia7ta » 26 Sep 2015, 10:20

Falkentyne wrote:I assume this is not EDID limit but firmware lock (I know Asus VG248QE can do 150hz also but NOT at 1920x1080, it can do it at 1280x720 and another lower resolution with different timings).

Anyone know bios modification to enable higher refresh rate for benq XL2720Z V4 or (new dump) V5 firmware? Or can EDID edit allow this? You can hex edit raw bin firmware but without knowing how code is....:(

If it was so easy :) I'm also sure it's firware lock.

I have made some shots with Alien Invasion Test with Pursuit Camera Grid at 185Hz:
https://drive.google.com/file/d/0BxGmaL ... sp=sharing
mirror: https://mega.nz/#!aAcDEJBZ!pF8tvaOf7fm1 ... IN0mJjY-Og

Are there any correct shot?

There is twice less ghosting at 185Hz comparing to 144Hz by eye.
Q83Ia7ta
 
Posts: 594
Joined: 18 Dec 2013, 09:29

Re: X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or mor

Postby dhaine » 26 Sep 2015, 15:24

can you do also very high hz with lower resolution ? 1280x720 for example can keep 200hz?
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Re: X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or mor

Postby Q83Ia7ta » 26 Sep 2015, 15:38

dhaine wrote:can you do also very high hz with lower resolution ? 1280x720 for example can keep 200hz?

I'm sure it will but I'm gonna replace heat sink (radiator) and holes:
Image

and I hope this will make 200Hz at 1080p stable.
Q83Ia7ta
 
Posts: 594
Joined: 18 Dec 2013, 09:29

Re: X-Star DP2414LED 144Hz 1ms overclockable to 185Hz or mor

Postby Q83Ia7ta » 11 Oct 2015, 15:31

200Hz is stable in games and goes full white screen when picture reaches some off pixels count (to many black at screen) for some short time. At 210Hz unique artifacts and 240Hz another unique artifacts. Funny thing that going back to BenQ XL2411Z at 144Hz makes possible to notice tearing (stable 250fps).
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