Hi
-I will ask this once more,yes: Did the vga card have this flickering issue when you first got it; If Not when did it start and what had happend [was it over clocked]
DisplayPort. HDMI dosn't support 120Hz. Confirm Is this 2.1 compliant?
I need to know if it flickers in the same way using DisplayPort even if it dose not support 120Hz, as this may indicate that the PSB has damaged components or corrupted vbios image, driver corruption.
Test the DVI-SL-DVI-SL while your there from the correct output [attach this to the DVI-DL vga output and attach display port under this] enter window properties for monitor and select display as one.
When testing the DisplayPort cable:
attach DP cable to the port furthest away from the DVI-DL
Need to start testing the vga card, all ports need testing, double check that there are no bent pins in the cable fittings or damage to the vga cards ports
- check that the PCIe Blades are clean ,
- clean the PCIe x16 motherboard slot [use air duster]
- Ensure the vga card is seated well
- change the power cables if the PSU is modular, if not assign other cables from the PSU if supported.
Uninstall AMD drivers, dose the flicker still occure? [Check all cable scenarios while driver is uninstalled]
If you are able to test this with a clean install of windows + service pack [all the better] get a cheap hdd / ssd if you do not have one spare
take your time; and ensure all cables are secure
Edit:
And now I plug in both cables and DL have no problem... I don't understand this. What happens?
Most of the answers to this
here makes for some light reading in between testing; however this is a possible bug in the AMD driver.
atb
Law-II