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BenQ xl2420T 120 Hz and MSI Lightning 7970

Last response: in Graphics & Displays
October 22, 2012 12:38:02 PM

I got BenQ xl2420t and since my GPU don't have dual link DVI, I am unable to use 120Hz. Is there any way make this work? like to buy some kind of adapter ?
or I just need to buy new GPU with dual link DVI connector ? :( 
a b U Graphics card
October 22, 2012 1:49:44 PM

If your GPU really does not support it, by the specs i've seen yes the lighning version does not support it, you could try with display port cable:

Mini DisplayPort x 4 (Resolution up to 2560x1600)
Single-link DVI-I x 1 (Resolution up to 1920x1200)
Single-link DVI-D x 1 (Resolution up to 1920x1200)

get a displayPort ACTIVE adapter and plug it to your monitor 120hz 1080p should work.
October 22, 2012 2:11:03 PM

can you tell me exact name or link it on ebay, so I don't buy a wrong one. I was trying to search "displayPort ACTIVE adapter" and I found a lot of options, so I don't know which one to pick ? thanks for help
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a b U Graphics card
October 22, 2012 3:08:43 PM

bignastyid said:
You don't need an adapter your monitor has a displayport connector all you need is a minidisplayport to display port cable.

Yes, when i said adapter i was refering to the minidisplayport to the displayport, but it can be to Dual Link DVI too, since both transfer digital signal.

Go with the one is cheaper/easier to find, make sure it support 120hz.
October 24, 2012 9:13:41 AM

I got cable mini DP to DP and I have 120 Hz.

I would like to know is there any graphic quality difference/delay lag, compared to dual link DVI ? Is dual link DVI connection better ?

thanks for help guys
a b U Graphics card
October 24, 2012 11:09:33 AM

No, they are sending basically the same signal, if you are running at 120hz already, you are ok, 120hz at DL-DVI is the same as DP so you are good now.