Monday, June 27th 2016

GeForce GTX "Pascal" Faces High DVI Pixel Clock Booting Problems

The second design flaw to hit the GeForce GTX 1080 and GTX 1070 after the fan revving bug, isn't confined to the reference "Founders Edition" cards, but affects all GTX 1080 and GTX 1070 cards. Users of monitors with dual-link DVI connectors are noticing problems in booting to Windows with pixel clocks set higher than 330 MHz. You can boot to windows at default pixel clocks, and when booted, set the refresh-rates (and conversely pixel clocks) higher than 330 MHz, and the display works fine, it's just that you can't boot with those settings, and will have to revert to default settings each time you shut down or restart your machine.

A user of a custom-design GTX 1070 notes that if the refresh rate of their 1440p monitor is set higher than 81 Hz (the highest refresh rate you can achieve with pixel clock staying under 330 MHz) and the resolution at 2560 x 1440, the machine doesn't correctly boot into Windows. The splash screen is replaced with flash color screens, and nothing beyond. The system BIOS screen appears correctly (because it runs at low resolutions). The problem is also said to be observed on a custom-design GTX 1080, and has been replicated by other users on the GeForce Forums.
Source: Reddit
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147 Comments on GeForce GTX "Pascal" Faces High DVI Pixel Clock Booting Problems

#101
ZoneDymo
64K said:
I think sometimes people talk smack about AMD because they think it's funny to see how worked up emotionally AMD fans can get when they do that.
from everything I read on forums its more the case that AMD has fans..and Nvidia has fanboys...
How often you see someone on a random forum telling you Nvidia is the only way to go and AMD is crap vs the other way around? 100 vs 1?
AMD users far more often tell you about getting what is the best at that moment and what works for you personally with your personal needs in mind....or ya know...sane consumers.
Posted on Reply
#102
theoneandonlymrk
GC_PaNzerFIN said:
Well, the "generally impossible" has been working with pretty much all previous gen NVIDIA and AMD desktop graphics cards. In fact, I am now running 384 MHz on GTX 780 Ti just fine. I am very sad to hear I can no longer do 96Hz 1440p on this really amazing QNIX 27" panel. Might have to resort in spending 800 euros on a new screen, which only advantage would be G-SYNC and few Hz more. :(
This guys facing the actual issue , and despite many of you're opinion on it a quick Google round says 1440p 144Hz are here big time this year , I suppose they will all be displayport or something eh ,even the cheap VA ones.
Posted on Reply
#103
P4-630
The Way It's Meant to be Played
At least there is no suprise of crippled vram :p
I'm running my monitor at 60Hz so no problem for me.
Once I upgrade to a 1440p monitor I will keep in mind to buy one with DP if it has a higher refresh-rate.
Posted on Reply
#104
the54thvoid
theoneandonlymrk said:
This guys facing the actual issue , and despite many of you're opinion on it a quick Google round says 1440p 144Hz are here big time this year , I suppose they will all be displayport or something eh ,even the cheap VA ones.
I may be wrong but this isn't about 144hz displays. It's about pixel over clocking manually?
Posted on Reply
#105
P4-630
The Way It's Meant to be Played
the54thvoid said:
I may be wrong but this isn't about 144hz displays. It's about pixel over clocking manually?
In the Dutch tech news they said:
"Nvidia GTX 1000-gebruikers die een 1440p-monitor met een refreshrate hoger dan 90Hz hebben "

Which is translated:
"Nvidia GTX 1000-users who own a 1440p-monitor with a refresh-rate higher than 90Hz"
Posted on Reply
#106
jabbadap
theoneandonlymrk said:
This guys facing the actual issue , and despite many of you're opinion on it a quick Google round says 1440p 144Hz are here big time this year , I suppose they will all be displayport or something eh ,even the cheap VA ones.
Well, I doubt that any monitor manufacturer will sell monitor out of spec(and if monitor have multiple inputs, most likely only dp connector is 1440p@144Hz). Overlord computer(no defunct) was one of the first that was selling those OC ips 1440p@120Hz korean dual link dvi monitors for western customers. But those too were 1440p@60Hz(like korean qnix, catleap, etc.) at stock, OC were left for the customer. Lovely monitors from the era before 1440p@144Hz ips/VA dp monitors.
Posted on Reply
#107
redeye
And this is why all of the gtx 1080/1070 pascal's are sold out!... seriously. makes sense.
Nvidia is correcting the problem, in secret, and will have a new version out "real soon now"
Posted on Reply
#108
TheinsanegamerN
the54thvoid said:
I may be wrong but this isn't about 144hz displays. It's about pixel over clocking manually?
You're technically both right and wrong. The issue is people using pixel overclocking to push 1440p at 75+hz on dual link DVI, which does not officially support anything over 60hz at 1440p.

The problem is that people bought these 1440p korean monitors that only have DVI, OCed them past 60hz, and now the new pascal cards dont like that. IMO, the consumer took the risk by OCing a monitor, they have to deal with said issues. It would be nice if nvidia fixed the issue, if they can, but they have no responsibility to do so.
Posted on Reply
#109
theoneandonlymrk
jabbadap said:
Well, I doubt that any monitor manufacturer will sell monitor out of spec(and if monitor have multiple inputs, most likely only dp connector is 1440p@144Hz). Overlord computer(no defunct) was one of the first that was selling those OC ips 1440p@120Hz korean dual link dvi monitors for western customers. But those too were 1440p@60Hz(like korean qnix, catleap, etc.) at stock, OC were left for the customer. Lovely monitors from the era before 1440p@144Hz ips/VA dp monitors.
Asus and Samsung have 1440p 144Hz monitors out soon, out of spec ??? , that niche you were on about caught on last year ,this year its going enthusiast mainstream.
Posted on Reply
#110
TheinsanegamerN
theoneandonlymrk said:
Asus and Samsung have 1440p 144Hz monitors out soon, out of spec ??? , that niche you were on about caught on last year ,this year its going enthusiast mainstream.
No, they are in spec for DisplayPort. Displayport 1.2, which came out in 2009, can run 1440p144 just fine, or 4k60. 1.3 can do 1440p165, or 4k120.

The problem is these monitors out of korea that only have DVI, that users clock above 60hz. DVI can only do 1440p60, anybody running higher is running out of spec.
Posted on Reply
#111
Slizzo
InsanegamerN is correct. I will add to his comment the issue is only present when BOOTING WINDOWS while having your refresh rate over 80Hz on a 1440P panel that only has a dual-link DVI connection. All other resolutions and refresh rates at the DVI spec, or on other types of connection are OK.
Posted on Reply
#112
Watashi_Omda
According to the post, it implies that it only affects DVI users. So I assume display port and HDMI users are not suffering from this issue right?
Posted on Reply
#113
truth teller
truth teller said:
not true, "old" native 75/85/120hz monitors use dvi and they seem to work just fine. heck, even some (if not most)144hz monitors have dvi, not the only interface but its probably the primary
sweet move on the late edit, mod. apparently only some can voice their sarcasm around here, what was the problem with
yet another new account made to praise something that has some minor issues
sure, the problem is not in the card, not at all, its in the people that try to use one of standard interfaces in it that have problems, not to mention a sturdier physical connector. those poor people that just dont get it...
that required it to be removed? why not remove the whole post then? dont get it...
Posted on Reply
#114
Slizzo
Watashi_Omda said:
According to the post, it implies that it only affects DVI users. So I assume display port and HDMI users are not suffering from this issue right?
No issue there.
Posted on Reply
#115
Captain_Tom
P4-630 said:
I'm using DVI-D and HDMI, both monitor and tv are running at 60Hz, so no problems for me.
If I was running a higher refresh-rate monitor, I would just lower the Hz before shutting down, because I would be uncomfortable flashing my expensive brand new card if there would be a BIOS update soon.
Great. So you paid $700 to have a graphics card without working fans, and it needs you to adjust monitor settings every time you turn it off. Look at the premium Geoforce Experience everybody!!!
Posted on Reply
#116
P4-630
The Way It's Meant to be Played
Captain_Tom said:
Great. So you paid $700 to have a graphics card without working fans, and it needs you to adjust monitor settings every time you turn it off. Look at the premium Geoforce Experience everybody!!!
The fans of my card are working fine, no problems here, no problems with monitor and tv either.;)
Posted on Reply
#117
Slizzo
Captain_Tom said:
Great. So you paid $700 to have a graphics card without working fans, and it needs you to adjust monitor settings every time you turn it off. Look at the premium Geoforce Experience everybody!!!
Wow, people are crazy angry that a NEW VIDEO CARD that does not support analog any longer (legacy, sunsetted feature) will not boot correctly when the DVI connection is forced to work outside it's own spec.

This is just nuts.



Look here, this is not an issue, nor a design flaw. nVidia can hardly be expected to test or design a function that is outside of specification to work on their GPU.
Posted on Reply
#118
xorbe
Slizzo said:
Look here, this is not an issue, nor a design flaw. nVidia can hardly be expected to test or design a function that is outside of specification to work on their GPU.
Well, you can say that it's a regression wrt previous and competing products. I would say dot clock 'overclocking' is far more universal than gpu overclocking. Love me some XFree86 modelines!
Posted on Reply
#119
Makaveli
TheGuruStud said:
All of the low latency korean monitors came with only dvi (multiple inputs increase latency). Tons of them were sold for refresh OCing.

I have no monitors with DP. DP is a new addition to most monitors.
My HP ZR24W from 2010 has display port!
Posted on Reply
#120
D007
ZoneDymo said:
from everything I read on forums its more the case that AMD has fans..and Nvidia has fanboys...
How often you see someone on a random forum telling you Nvidia is the only way to go and AMD is crap vs the other way around? 100 vs 1?
AMD users far more often tell you about getting what is the best at that moment and what works for you personally with your personal needs in mind....or ya know...sane consumers.
Lol people who call others "fan boys" are in fact themselves, fan boys...
I've tried both.. Nvidia has always won.. Performance is what I pay for..
No amount of fan boys, hoping AMD will one day be better, will change anything..
They have their niche. Beneath Nvidia..
Posted on Reply
#121
Camm
Slizzo said:
No issue there.
Currently issues with DP at higher refresh causing artifacting.
Posted on Reply
#122
Slizzo
Camm said:
Currently issues with DP at higher refresh causing artifacting.
Some have it, some don't. I do not have this issue.
Posted on Reply
#123
Camm
Slizzo said:
Some have it, some don't. I do not have this issue.
I certainly do. Somewhat annoying my old Titan X ran better than my new 1080.
Posted on Reply
#124
newconroer
avatar_raq said:
It will affect a small number of users (those with high refresh rate no DP ports monitors) but it is an issue nevertheless. I wonder if a VGA bios update will solve this.
Small number ...there's a lot of 1440p 120/144hz users who are still using monitors with Dual DVI...

Man everytime I invest in an Nvidia product, right after wards..something like this comes out.. wtf


I wonder what happens when you use a DVI - D to Display Port adapter.
Posted on Reply
#125
Slizzo
newconroer said:
Small number ...there's a lot of 1440p 120/144hz users who are still using monitors with Dual DVI...

Man everytime I invest in an Nvidia product, right after wards..something like this comes out.. wtf


I wonder what happens when you use a DVI - D to Display Port adapter.
I don't think there are any people at 1440P with 120Hz-144Hz going over a dual link DVI, as that connection does not have enough bandwidth to support what you speak of. This is why you see display port on monitors that support those specs.
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