Overclock.net › Forums › Components › Monitors and Displays › CrossOver 27Q LED/LED-P, 27M LED, & 2720MDP GOLD LED Monitor Club
New Posts  All Forums:Forum Nav:

CrossOver 27Q LED/LED-P, 27M LED, & 2720MDP GOLD LED Monitor Club - Page 294

post #2931 of 6483
Quote:
Originally Posted by mullum View Post

since updating to OSX 10.7.5 (at least I think the problem is since the update) Ive been getting somewhat garbled text on the Crossover as a secondary display to my iMac.
OSX says the display is running at 2560x1440 and photos seem fine - but text (or text/menus etc in applications) are no longer clear. Reboot doesnt help. Probably the best way to describe the problem is with the images below :
text on my imac screen : Warning: Spoiler! (Click to show)
8047022874_a2c3c343b2.jpg
text on the crossover :
8047017829_f0fe8622d8.jpg
8047018527_39dda29334.jpg
Is anyone else experiencing this - know of a fix ?

That looks like more of an OS issue than a problem with the monitor. Has you tried holding down the Option key (Alt) and the Command key at the same time, then pressing the minus key?
post #2932 of 6483
Quote:
Originally Posted by PCModderMike 
That looks like more of an OS issue than a problem with the monitor. Has you tried holding down the Option key (Alt) and the Command key at the same time, then pressing the minus key?

Yes I have - its not related to zooming, but yes I'm pretty sure its OSX related - Ive also tried connecting the monitor to a 2012 Macbook Air running mountain lion (10.8.1) and have exactly the same issue.

As its is - it makes the second monitor (in this case my Crossover) unusable. I've tried searching to see if others are having the issue but despite trying several search terms Im not finding anything .. you'd think if Im having this then thousands of others would be too.

It may be related to using the mini displayport to dual link dvi-d adapter - a piece of hardware from apple which has had some notoriety in the past ...
Edited by mullum - 10/2/12 at 8:51am
post #2933 of 6483
So I purchased one of these power adapters:

http://www.microcenter.com/product/235153/45W_Step-Up_Voltage_Converter

and used the korean plug the monitor came with in an attempt to not destroy another MOSFET. After about 10 minutes of use it got really hot and died (the converter). The power rating seemed to be appropriate for what the monitor uses so I have no idea why it died. I had purchased an open box model. Thinking I got a bad converter, I exchanged it and paid the difference for a new one only to have that one die in the same time frame. Is this adapter not compatible with the monitor and I'm killing them, or did I get two different adapters that were bad?
post #2934 of 6483
Quote:
Originally Posted by tehpsyc View Post

So I purchased one of these power adapters:
http://www.microcenter.com/product/235153/45W_Step-Up_Voltage_Converter
and used the korean plug the monitor came with in an attempt to not destroy another MOSFET. After about 10 minutes of use it got really hot and died (the converter). The power rating seemed to be appropriate for what the monitor uses so I have no idea why it died. I had purchased an open box model. Thinking I got a bad converter, I exchanged it and paid the difference for a new one only to have that one die in the same time frame. Is this adapter not compatible with the monitor and I'm killing them, or did I get two different adapters that were bad?

That converter is rated at 45W, is that sufficient for the monitor?
New i7 950 build
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 @ 4.2ghz MSI Big Bang x58  Crossfire Sapphire 7970 OC  6gb HyperX 1600 
Hard DriveHard DriveCoolingOS
C300 64gb , Agility2 90gb, 2x WD greens Raid 0 Samsung 830 series 64gb H100 Windows 7 64bit 
MonitorPowerCase
Crossover 1440p OCZ ZX850W Lian li Pc-x2000f 
  hide details  
Reply
New i7 950 build
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 @ 4.2ghz MSI Big Bang x58  Crossfire Sapphire 7970 OC  6gb HyperX 1600 
Hard DriveHard DriveCoolingOS
C300 64gb , Agility2 90gb, 2x WD greens Raid 0 Samsung 830 series 64gb H100 Windows 7 64bit 
MonitorPowerCase
Crossover 1440p OCZ ZX850W Lian li Pc-x2000f 
  hide details  
Reply
post #2935 of 6483
Quote:
Originally Posted by strap624 View Post

That converter is rated at 45W, is that sufficient for the monitor?
The monitor is 65W AFAIK.
post #2936 of 6483
That's why it's burning up then. I figured it would be over 45w.
New i7 950 build
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 @ 4.2ghz MSI Big Bang x58  Crossfire Sapphire 7970 OC  6gb HyperX 1600 
Hard DriveHard DriveCoolingOS
C300 64gb , Agility2 90gb, 2x WD greens Raid 0 Samsung 830 series 64gb H100 Windows 7 64bit 
MonitorPowerCase
Crossover 1440p OCZ ZX850W Lian li Pc-x2000f 
  hide details  
Reply
New i7 950 build
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 @ 4.2ghz MSI Big Bang x58  Crossfire Sapphire 7970 OC  6gb HyperX 1600 
Hard DriveHard DriveCoolingOS
C300 64gb , Agility2 90gb, 2x WD greens Raid 0 Samsung 830 series 64gb H100 Windows 7 64bit 
MonitorPowerCase
Crossover 1440p OCZ ZX850W Lian li Pc-x2000f 
  hide details  
Reply
post #2937 of 6483
I checked the power consumption with my energy meter. 87-90 watts at full brightness with white background. With the brightness settings i use (which is pretty low) it consumes 45-65 watts depending on what is being displayed.

I have the welltronics power brick and i live in EU (230v)
Edited by Karail - 10/2/12 at 9:39am
post #2938 of 6483
Quote:
Originally Posted by Karail View Post

I checked the power consumption with my energy meter. 87-90 watts at full brightness with white background. With the brightness settings i use (which is pretty low) it consumes 45-65 watts depending on what is being displayed.
I have the welltronics power brick and i live in EU (230v)

Thanks, I also have that brick, and was getting the flickering issues. I picked up that korean adapter to see if it would resolve my mosfet overheating, but i also picked up a quality UPS and I've been running at max brightness using the new UPS and the old american plug for about an hour now with no flickering. My apartment is old and the electrical wiring is probably pretty bad, so maybe my dead mosfet was the result of ****ty wiring? I've had some other electrical issues in the past.

And I'm showing 99 watts of usage at max brightness. Do you think there is any benefit to getting a stronger korean converted to output the native voltage/hz to the monitor with this power brick? I don't want to destroy another pcb

EDIT: also, the welltronics brick gets pretty hot for me, not like so hot that I can't touch it, but beyond what I'd describe as warm. Does yours feel that way as well?
Edited by tehpsyc - 10/2/12 at 10:09am
post #2939 of 6483
This monitor runs on 24v DC right? What is the AMP output rating on the power bricks?
Edited by strap624 - 10/2/12 at 10:05am
New i7 950 build
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 @ 4.2ghz MSI Big Bang x58  Crossfire Sapphire 7970 OC  6gb HyperX 1600 
Hard DriveHard DriveCoolingOS
C300 64gb , Agility2 90gb, 2x WD greens Raid 0 Samsung 830 series 64gb H100 Windows 7 64bit 
MonitorPowerCase
Crossover 1440p OCZ ZX850W Lian li Pc-x2000f 
  hide details  
Reply
New i7 950 build
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 @ 4.2ghz MSI Big Bang x58  Crossfire Sapphire 7970 OC  6gb HyperX 1600 
Hard DriveHard DriveCoolingOS
C300 64gb , Agility2 90gb, 2x WD greens Raid 0 Samsung 830 series 64gb H100 Windows 7 64bit 
MonitorPowerCase
Crossover 1440p OCZ ZX850W Lian li Pc-x2000f 
  hide details  
Reply
post #2940 of 6483
Quote:
Originally Posted by tehpsyc View Post

And I'm showing 99 watts of usage at max brightness. Do you think there is any benefit to getting a stronger korean converted to output the native voltage/hz to the monitor with this power brick? I don't want to destroy another pcb

Yeah i think that might be the solution. Can't say for sure though cause i'm not an expert. I would propably buy this and hope it solves the problem.

http://www.amazon.com/Power-Bright-VC200W-Voltage-Transformer/dp/B000MW83OG/ref=sr_1_2?ie=UTF8&qid=1340984136&sr=8-2&keywords=200w+converter
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays
Overclock.net › Forums › Components › Monitors and Displays › CrossOver 27Q LED/LED-P, 27M LED, & 2720MDP GOLD LED Monitor Club