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I just got my new [QH270-Lite] Achieva ShiMian 27" Quad HD 16:9 DVI-D Wide 2560x1440 in today and hooked it to my pc and it looks great except for a constant flickering ( screen jumping, bottom half, or whole screen) it only happens ever so often.
I'm running it on my EVGA 1gb 560ti at 2560 x 1440 (card specs says 2560 x 1600 max).. I updated drivers on video card and still flickering.. I tried recording it on fraps but the video doesnt show the flickering?
Manufacture listed my 560ti as a compatible video card..

Have you tried a different output port on your graphics card?

yes, I tried both DVI ports and it still flickers.. could the korean power converter be causing this? or bad DVI cable?

I read in either the HardOCP or Overclock.net thread about a guy with a similar problem. He had to open the case and re-solder a wire or two onto the DVI connector.

Easiest thing to do is try another cable. I'm betting its a subpar DVI cable at play.

ok I changed out the cable and its still doing the screen jumping.. could a bad power adapter be causing these issues?

Update: I noticed it does the screen jumping when I am running an application, or game more frequently.. ????

ok a friend told me it was a power problem.. information I gave him after saying it flicklers more often when app or game running..
I have a 560ti video card
i3 cpu 2400
I only have a 500w power supply..
It worked fine for 1680 x 1050 LG display, but running my system at 2560 x 1440 is to much and lack of power is causing these video jitters?

chrysagon200 wrote:

ok a friend told me it was a power problem.. information I gave him after saying it flicklers more often when app or game running..
I have a 560ti video card
i3 cpu 2400
I only have a 500w power supply..
It worked fine for 1680 x 1050 LG display, but running my system at 2560 x 1440 is to much and lack of power is causing these video jitters?

Chrys:
I am exactly in the same boat right now, and just found out it costs about 300 US to return the darned thing...but like you, I love the display and would like to fix it some how...Please post again how you resolved it if you did..Thanks