Can't get 120hz on BenQ XL2420t

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Richal92

Commendable
Aug 19, 2016
5
0
1,510
Hello
When i choose 120 hz in settings, the screen gets messed up and a message pops up saying;
"Incorrect cable. Please use the DVI dual-link cable that came with your monitor"
I'm using Dvi-D cable.
Asus Radeon HD 7970 Matrix Platinum
BenQ XL2420T

What am I doing wrong?
Thanks
 
Solution
Frag Maniac
Make sure the one they included is actually dual vs single link. It should look like the one in the lower right of this pic.

http://www.deltapage.com/product_images/uploaded_images/7801.dvid.gif

Also, your GPU is dual BIOS, and you have to have it set to the right one for Dual Link DVI. You need to set it to the one for 1x dual-link DVI and 1x single-link DVI with fewer DP ports, and even then, it may need to be plugged into the correct DVI port.

"Using the dual BIOS feature allows you to switch the output configuration between 1x dual-link DVI and 1x single-link DVI with fewer DP ports, or 2x single-Link DVI with all DP ports enabled."

Source: https://www.techpowerup.com/reviews/ASUS/HD_7970_Matrix/3.html

If all the above...
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Frag Maniac

Frag Maniac

Illustrious
Oct 6, 2012
5,910
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41,590
Make sure the one they included is actually dual vs single link. It should look like the one in the lower right of this pic.

http://www.deltapage.com/product_images/uploaded_images/7801.dvid.gif

Also, your GPU is dual BIOS, and you have to have it set to the right one for Dual Link DVI. You need to set it to the one for 1x dual-link DVI and 1x single-link DVI with fewer DP ports, and even then, it may need to be plugged into the correct DVI port.

"Using the dual BIOS feature allows you to switch the output configuration between 1x dual-link DVI and 1x single-link DVI with fewer DP ports, or 2x single-Link DVI with all DP ports enabled."

Source: https://www.techpowerup.com/reviews/ASUS/HD_7970_Matrix/3.html

If all the above checks out, and the cable is dual link, they may have sent you a defective cable, in which case you should contact the manufacturer.
 
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