Overclock.net › Forums › Components › Monitors and Displays › (Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270
New Posts  All Forums:Forum Nav:

(Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270 - Page 277

Poll Results: Vote when your Achieva/Catleap monitor comes in.

 
  • 41% (232)
    Achieva QH270
  • 2% (12)
    Achieva QH270 (DOA / didn't recieve)
  • 8% (46)
    Achieva QH270 (Dead pixel(s) / flawed panel)
  • 40% (224)
    Catleap Q270
  • 1% (8)
    Catleap Q270 (DOA / didn't recieve)
  • 5% (33)
    Catleap Q270 (Dead pixel(s) / flawed panel)
555 Total Votes  
post #2761 of 4784
Quote:
Originally Posted by ThingyNess View Post

Just FYI, after playing with the CRU utility posted by ToastyX and fiddling with custom refresh rates/timings on mine, after a Windows restart I encountered the same (very bad) image retention problems described earlier in this thread. Thankfully it seemed like too much of a coincidence to me, so I ended up plugging it into a different PC and all the image retention problems disappeared. Plugged it back into the other PC with the EDID overrides in the registry, and it came back.
Evidently certain timing combinations, at least on my monitor that has the eDP interface internally, will cause the retention issue. After removing all the custom timings and monitor profiles from the registry and restarting, the monitor is perfect again.
For all those experiencing image retention issues, make SURE you aren't driving the monitor with incorrect timings. A good way to check is to go into your BIOS on startup and see if the bios menus are suffering from the same retention issues. In my case they weren't, so it was a big clue that it wasn't a physical monitor defect.
Now that is some good info to share.
Nice work.
post #2762 of 4784
ist it possible to put a dvi to hdmi cable from the pc (hdmi) to the monitor (dvi)? because if not, what are we going to do if dvi dies and there's just hdmi?
post #2763 of 4784
HDMI is not going to overtake DVI.
post #2764 of 4784
Quote:
Originally Posted by ThingyNess View Post

Just FYI, after playing with the CRU utility posted by ToastyX and fiddling with custom refresh rates/timings on mine, after a Windows restart I encountered the same (very bad) image retention problems described earlier in this thread. Thankfully it seemed like too much of a coincidence to me, so I ended up plugging it into a different PC and all the image retention problems disappeared. Plugged it back into the other PC with the EDID overrides in the registry, and it came back.
Evidently certain timing combinations, at least on my monitor that has the eDP interface internally, will cause the retention issue. After removing all the custom timings and monitor profiles from the registry and restarting, the monitor is perfect again.
For all those experiencing image retention issues, make SURE you aren't driving the monitor with incorrect timings. A good way to check is to go into your BIOS on startup and see if the bios menus are suffering from the same retention issues. In my case they weren't, so it was a big clue that it wasn't a physical monitor defect.
Also, I checked my power supply and it's putting out 24.6v when unplugged from the monitor with no load. Now, there's no guarantee that other non-identical power supplies will put out their full voltage without a load being put on them. Some switchmode power supplies require at least a ~5% load before their regulation will work properly.
The power supply I tested was from my 2C revision Catleap Q270, pictured below.
DSC_0226.JPG
From Catleap q270se - Mar 20, 2012



Thank you, that definitely seems to be related. Its odd though that from the first minutes of usage I had image retention yet hadnt done any OC attempts.
post #2765 of 4784
Quote:
Originally Posted by Derpinheimer View Post

Thank you, that definitely seems to be related. Its odd though that from the first minutes of usage I had image retention yet hadnt done any OC attempts.

Does the ghosting/retention occur in the BIOS as well? What about when you hook it up to another PC?

I can confirm that the timings below work great for mine and cause no retention problems, but modified timings at 65hz (and to a lesser extent at 60hz even) caused massive retention problems exactly as you described in your post. Maybe your video card is ignoring the EDID information in the monitor, or maybe it was programmed incorrectly from the factory?

q270se-edid-timings.jpg
From Catleap q270se - Mar 20, 2012
post #2766 of 4784
A few pictures of my Crossover.

Great packaging from Dream-seller
http://img716.imageshack.us/img716/4549/20120320001.jpg

Sticker on the back
http://img707.imageshack.us/img707/2623/20120320006.jpg

Dead pixel frown.gif Running UDP to see if it fix it
http://img163.imageshack.us/img163/4767/20120320008.jpg

Next to my Benq 24". Crap phone pic, but this monitor is beautiful compared to the Benq. Was worried that it might've been tall for my desk shelf above but it fits perfectly.
http://img821.imageshack.us/img821/8640/20120320012.jpg

Haven't tried to OC, since i'm in the process of running of UDP to fix the stuck pixel.
post #2767 of 4784
Quote:
Originally Posted by ThingyNess View Post

Also, I checked my power supply and it's putting out 24.6v when unplugged from the monitor with no load. Now, there's no guarantee that other non-identical power supplies will put out their full voltage without a load being put on them. Some switchmode power supplies require at least a ~5% load before their regulation will work properly.
The power supply I tested was from my 2C revision Catleap Q270, pictured below.
DSC_0226.JPG
From Catleap q270se - Mar 20, 2012


Thank you, finally someone that posted up some voltage numbers. I'd like to get a few more people post numbers, but it is making me feel better. I did buy another power brick off ebay, it was $24 shipped so it is worth a shot.
post #2768 of 4784
I can only agree with previous sentiments about dcsamsungmall. Ordered a Catleap Q270 SE last Sunday evening, arrived this afternoon on the East Coast! Unbelievable.

The monitor itself is in perfect condition, the box had a factory seal on it. Haven't found any stuck pixels, so I'm very pleased. The stand is cheap, yes, but is fairly level and seems to be getting better as I move it around. I haven't tried beyond 60Hz yet, so far running solid on default settings.
post #2769 of 4784
Quote:
Originally Posted by scutzi128 View Post

Quote:
Originally Posted by stryker7314 View Post

I'm with you guys, I ordered on the fourth and he didn't ship until the 7th when I asked him why my tracking number wasn't working. What's more aggravating is he must think I'm a fool to not notice that he didn't ship until I said something. Here's his reply. "Now your tracking information is updated," - yeah right. Negative feedback for sure, and a full paypal refund if the monitor has any flaws, then he can pay me to ship it back if he wants it returned, I'll be sure to take my time with it as well.mad.gif
Hi!
Sorry for the inconvenience.
We contacted Korea Post again and now your tracking information is updated. Please check it with your tracking number again please. Again, sorry for it. If you have any other question, please feel free to ask. Thanks again. Have a good day!

Being that pissed over a 3 day delay is completely ridiculous.

Indeed... have patience man.. I once ordered something from China, took the package at least a month to arrive at my doorstep!
post #2770 of 4784
Quote:
Originally Posted by disprosium View Post

I can only agree with previous sentiments about dcsamsungmall. Ordered a Catleap Q270 SE last Sunday evening, arrived this afternoon on the East Coast! Unbelievable.

That's because dcsamsungmall gives free express postage to the US. Other countries he gives "economy" post only , and you have to pay for shipping too. Raw deal for anyone outside the US :/
Quote:
Originally Posted by stryker7314 View Post

I'm with you guys, I ordered on the fourth and he didn't ship until the 7th when I asked him why my tracking number wasn't working. What's more aggravating is he must think I'm a fool to not notice that he didn't ship until I said something. Here's his reply. "Now your tracking information is updated," - yeah right. Negative feedback for sure, and a full paypal refund if the monitor has any flaws, then he can pay me to ship it back if he wants it returned, I'll be sure to take my time with it as well.mad.gif

Dude what is your problem? The guy takes 3 days to process your order and you're throwing a hissy fit over that? Oh and do expect flaws in the panel as they are using A- grade panels with no dead pixel guarantee which you already knew before placing your order.

Some people...
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays
Overclock.net › Forums › Components › Monitors and Displays › (Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270