144 hz option won't show up for me

E

etegv

Limp Gawd
Joined
Dec 31, 2011
Messages
334
Hi, this is my issue. The 144 hz simply wont show up for me. I can only do 59 hz and 60 hz.

ASRock z87 killer
Ati Radeon 6950
Ben q 144 hz monitor
Dvi dual link cable
Windows 10

I reinstalled the drivers.

Is there a reason why this is happening? Is the 144 hz option limited to certain cards? I know I have the right monitor and cable. I am not sure what I overlooked.

Thank you very much for the help.
 
What resolution?

If you're talking about getting it to work at 144hz (regardless of Freesync), it's most likely the cable. Some 6950s also don't output dual-link DVI on both DVI ports, have you tried both?

If it were me, I would be using the DP/mini-DP anyway since dual-link DVI is close to its limit at 1920x1080@120hz.
 
What cable are you using? HDMI most likely won't work, DVI single link won't work, etc.

My guess is the cable is faulty

more than one monitor?
 
this is for 1080p

noobferguson said:
What resolution?
Some 6950s also don't output dual-link DVI on both DVI ports, have you tried both?

If it were me, I would be using the DP/mini-DP anyway since dual-link DVI is close to its limit at 1920x1080@120hz.
Click to expand...

So this was the solution. I didn't know that only one port works with 144 hz, lol. I am sure why I couldn't find this info on google.





elite.mafia said:
What cable are you using? HDMI most likely won't work, DVI single link won't work, etc.

My guess is the cable is faulty

more than one monitor?
Click to expand...

The Issue was that only one port could do 144 hz. I assumed both ports were compatible with 144 hz because it was like that with my r9 290.

Thank you everyone so much for the help. You guys got me out of a jam, thank you. I was pissed off last night, lol.
 
etegv said:
this is for 1080p



So this was the solution. I didn't know that only one port works with 144 hz, lol. I am sure why I couldn't find this info on google.



The Issue was that only one port could do 144 hz. I assumed both ports were compatible with 144 hz because it was like that with my r9 290.

Thank you everyone so much for the help. You guys got me out of a jam, thank you. I was pissed off last night, lol.
Click to expand...

Ah, I didn't realize that card had 2 dvi ports. Glad you found the solution.
 
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elite.mafia said:
Ah, I didn't realize that card had 2 dvi ports. Glad you found the solution.
Click to expand...

Yeah, this was quite confusing when it happened. Basically, AMD abandoned Dual-link DVI early because they assumed you could use the DisplayPort. Back when DP to DVI dual-link adapters were $100, and were extremely picky devices, and only the most expensive 144hz 1080p monitors supported HDMI 1.4 or DP 1.2.

Switch DVI ports, or use the DP connection (if your monitor supports it).
 
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You anyway can get HDMI cables capable of transferring data for 144hz. Good quality ones are hard to find tough. Display Port cables are the most common.
 
FedericoUY said:
You anyway can get HDMI cables capable of transferring data for 144hz. Good quality ones are hard to find tough. Display Port cables are the most common.
Click to expand...
Any HDMI cable is capable, you just have to be aware that the more saturated the bandwidth the shorter the cable you need to keep signal integrity without a repeater. 1920x1080 144 Hz is enough to use all the bandwidth of HDMI 1.4, and 2560x1440 144 Hz is enough to use all the bandwidth of HDMI 2.0. But some output devices simply didn't support the required TMDS clock rate for refresh rates higher than 60 Hz despite the HDMI certification. Regardless, I would never try to use a cable longer than 3m/10ft for standard HDMI cables where I was going to saturate the bandwidth, or 2m/6.6ft for High Speed cables.
 
FedericoUY said:
You anyway can get HDMI cables capable of transferring data for 144hz. Good quality ones are hard to find tough. Display Port cables are the most common.
Click to expand...

Radeon 6950 has the older HDMI 1.4a and DisplayPort 1.2 specs.

The DP 1.2 should be fine for 1080p @ 144Hz, but that could also be limited/prohibited by the GPU's output set by the manufacturer.
HDMI 1.4a supports 1080p @ 120Hz, but again, may be limited/prohibited.

My recommendation is using miniDP to DVI...or DP, if the monitor has native DP inputs of at least v1.2
 
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