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CrossOver 27Q LED/LED-P, 27M LED, & 2720MDP GOLD LED Monitor Club - Page 614

post #6131 of 6483
is the 27q even overclockable at all thru Evga Precision tool? anyone tried OC on it?
     
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post #6132 of 6483
Quote:
Originally Posted by Koehler View Post

This question can be answered by just reading the seller's descriptions of the monitor.

Thank you for this helpful comment! The reason I asked is because I've seen some posts stating it will only work with DVI-D, not DVI-I, which made no sense. I'll chalk it up to their poor English translation I guess.
post #6133 of 6483
Quote:
Originally Posted by Craigaaa View Post

You don't have to have exactly a 27" monitor to test. It can be any size monitor with a DVI input. Setup the same configuration you are using with your crossover. I have already known about the built in scaler but mainly only hear issues with laptops and consoles. You should be able to lower the resolution in vga mode and choose the color depth. If the panel is 8 bit (24 bit true) it should support anything below. SOme UEFI bios can support up to 1920x1080 so theroretically it should work in 1024x768 but that all depends on how the video controller chip is programmed. It should show post screen since post is 640x480 that is if you have boot logo disabled. If it is enabled you will just see an overlay of a logo. Now I have seen lower resolution panels 800x600 not show the boot logo because the resolution is 1024x760 but you will usually see only the hot keys for the bios. What I think is they programmed the video controller chip as a fixed resolution of 640x480 and it does not have a scaler so it cannot upscale/downscale the video automatically unless a driver tells it to. It kind of makes sense since when windows recognizes the monitor and your video driver is loaded the lowest resolution is 800x600 anything below that will work but any with a fixed resolution such as 1024x768 (UEFI a driver but fixed) or above the monitor cannot support it since it doesnt have a built in scaler to adjust the fixed video signal coming in. If it did have one the video signal coming in would be automatically adjusted to the correct resolution. I just tested a hdmi to dvi passive adapter and it did not work with my ivy bridge. So I suggest buying a video card. I will contact crossover and see if they have any updated firmware that can fix this. Maybe they will send me a test kit with different firmware. They may even be able to change the fixed resolution to your preferred setting for a small fee.
Wait wait wait. What model crossover? If its the 27Q model it has a 4 pin female power connector on the I/O. The input voltage is 24Vdc. If this is your model then you will need to contact your seller and have them ship you a external power supply. If you buy a aftermarket power supply the pins are not the same polarity, meaning it will damage the video board. In my previous posts (10 or so pages back) I illustrate the pinout polarity in a picture. Make sure you double check. Long story short, user on the forum bought a 4 pin male power supply for his crossover and the manufacture pinout was opposite and fried his video board.
1. It could be the metal is bowed or the lexan is not flat.
2. Take it apart, remove panel, use a little water and a clean microfiber towel to clean it. Use air compressor or make sure no large particles are left behind. It may be debris in between the lexan and polarized glass on the panel.
it seems the problem in intel:
Quote:
Originally Posted by kevin_intel 

Hi physics2007,

The Intel graphics controllers do not support DVI Dual Link. My best recommendation is to test a different monitor with DVI Single Link and with a straight connection.
https://communities.intel.com/message/207922#207922

I'll try different converters, probably active. I didn't test displayport yet.
post #6134 of 6483
Quote:
Originally Posted by RacyNortherner View Post

Thank you for this helpful comment! The reason I asked is because I've seen some posts stating it will only work with DVI-D, not DVI-I, which made no sense. I'll chalk it up to their poor English translation I guess.

I use both DVI-I and DVI-D and they both work just fine. DVI-I has 4 analog signals which you will not use anyway. DVI-D just has the ground pin without the 4 analog pins.
Quote:
Originally Posted by Physics2007 View Post

it seems the problem in intel:
https://communities.intel.com/message/207922#207922

I'll try different converters, probably active. I didn't test displayport yet.

What he suggests testing a single link dvi connection with a different monitor will work all day. The 27Q will not accept a single link video cable. (mine) You will get backlight, blue power led indicating that there is signal, but nothing will be displayed. If this is true about intel which does not surprise me at all because I have worked with intel on a dozen driver issues then you should just buy a video card and be done with it. Or you can try adaptive converters like hdmi to dvi dual link or dp to dvi dual link. This should increase the speed. Sounds like you will need the full DVI-D dual link signal or nothing will be displayed. Thats really the main reason why crossover distributors list it as not being compatible with HDMI on laptops. Same reason.

So just an hour ago I tested a 23" hanspree monitor and it displayed video in bios and os. My test consisted of HDMI to DVI-D dual link passive adapter, DVI-D dual link M/M cable and monitor had DVI-D dual link input. All pins were populated at the input DVI-D port on the video board. I assume it is DVI-D dual link since all pins were there for dual link. I am waiting on the answer from hanspree. The Z77 and H87 motherboard only support DVI-D single link max resolution 1920x1200. So you will only be able to run 1920x1200 through intel 4k graphics with hdmi output since it is single link only. Like I said you should still get video though single link (most all monitors will) but you will be unable to run 2560x1440 @ 60 Hz. Guy has a HP 27" 2560x1600 and his still displays video just fine but not in correct resolution. The crossover video board is unscaled and its crap for compatibility.

https://communities.intel.com/thread/38907

"Well I thought, let's get HDMI to DVI cable as it says 4k@24hz and 2560x1600@60hz so I bought one and what did it give me, NOTHING stil 1280x800!!!

Now I could be stupid and try getting HDMI to DisplayPort cable as a last try but something is telling me that this solution is also not going to work.

So THANK YOU intel for nothing your HD graphic card SUCKS big time and is totally useless even nvidia nvs295 (old piece of junk) is giving me 2560x1600."

Please read the chart for intel 4k specifications. http://www.intel.com/content/www/us/en/performance/performance-xeon-e3-1200-hd-graphics-p4000-guide.html
Edited by Craigaaa - 10/5/13 at 4:18pm
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post #6135 of 6483
http://www.overclock.net/t/1432130/crossover-27qd-dead-or-repairable

any chance one of you bright puppies can look over my thread and give me a response?
post #6136 of 6483
Hey guys my 1 year old crossover 27Q LED-P started acting up today. I have the old blue pcb revision. It stays powered on with the solid blue light, but when it receives an image it flickers for a half second and then goes into a black picture but remaining on with the blue light. I have messaged BCC (seller) about getting a new board. Do you guys think I will be alright after replacing it? How much does the board usually run?Is it one board or two that need to be replaced? +rep for any help.
Edited by Gallien - 10/7/13 at 7:17pm
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post #6137 of 6483
Quote:
Originally Posted by LuciferUK View Post

http://www.overclock.net/t/1432130/crossover-27qd-dead-or-repairable

any chance one of you bright puppies can look over my thread and give me a response?

Replied

Quote:
Originally Posted by Gallien View Post

Hey guys my 1 year old crossover 27Q LED-P started acting up today. I have the old blue pcb revision. It stays powered on with the solid blue light, but when it receives an image it flickers for a half second and then goes into a black picture but remaining on with the blue light. I have messaged BCC (seller) about getting a new board. Do you guys think I will be alright after replacing it? How much does the board usually run?Is it one board or two that need to be replaced? +rep for any help.

I am sure you have read the past 20 posts? You might want to skim over some posts of mine to get a better idea what you will be replacing and looking for. If the monitor is within a year old it is covered under the 1 year warranty and the part + shipping will be free. This only applies to crossover distributors. What I suggest is take the monitor apart. Locate the 4" blue pcb LED driver board. Inspect the mosfet (http://upload.wikimedia.org/wikipedia/commons/4/4f/D2PAK.JPG) for damage. Turn over pcb and inspect the bottom of the board directly behind the mosfet. It should be brownish color from overheating. It is just a switch that blocks high voltage and send very high current when on. Main component for backlight cdm2 level. If its the REV 00 Digital Wave blue pcb it needs to be replaced. I have replaced over a dozen with new rev led driver. Still going strong and it has been a little over 1 year.
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post #6138 of 6483
Quote:
Originally Posted by Craigaaa View Post

Replied
I am sure you have read the past 20 posts? You might want to skim over some posts of mine to get a better idea what you will be replacing and looking for. If the monitor is within a year old it is covered under the 1 year warranty and the part + shipping will be free. This only applies to crossover distributors. What I suggest is take the monitor apart. Locate the 4" blue pcb LED driver board. Inspect the mosfet (http://upload.wikimedia.org/wikipedia/commons/4/4f/D2PAK.JPG) for damage. Turn over pcb and inspect the bottom of the board directly behind the mosfet. It should be brownish color from overheating. It is just a switch that blocks high voltage and send very high current when on. Main component for backlight cdm2 level. If its the REV 00 Digital Wave blue pcb it needs to be replaced. I have replaced over a dozen with new rev led driver. Still going strong and it has been a little over 1 year.

Thanks for the reply. I will take apart the monitor tomorrow, but I have in the past and know the monitor has the blue pcb LED driver board. You can see it with a flashlight through the aluminum back without removing anything. My only problem is I am a bit over a year so it is likely out of warranty. I am having a hard time getting the new green revision LED driver board, no one seems to stock it, unless I am just blind redface.gif. I have messages AW and BCC about getting a new one from them, but have yet to hear back. Would you happen to know where I can purchase the green revision LED driver board?
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post #6139 of 6483
Just a question, I am finally back with the three monitors that I can review, but I was wondering, why can't I nvidia 2d surround it? I am curious to see as to how I could play a game with three montiors set up, but I don't see why nvidia doesn't let me. It asks me for different displays to be used.
post #6140 of 6483
Activation backlight option in OSD crossover 2720mdp, fsm-270yv ..... etc.

With the monitor off, press and hold menu button on the monitor and hold the two buttons.



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