9800X3D Noctua Build

Cenedd said:
I think the only time I've seen that exact symptom turned out to be a faulty batch of monitors. It does seem too coincidental to be just after your open card surgery though - although still worth testing. You could always boot a live linux CD or memory stick rather than reinstall. If it happens in that too, you know it isn't the Windows install. Doesn't necessarily prove that it's Windows if it doesn't flicker as it's a very different setup but it's quick, easy and non-destructive.
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Thanks! I’m also using the same monitor for my work MacBook and there doesn’t seem to be an issue there, although that is a USB-C display input, so different.

I do also have my old PC which I can put the card into… which is probably the quickest way of determining if it was self-sabotage!

The only windows event viewer logs that might be related are windows security log-in things… but I’d be surprised if that was doing anything.
 
It was a while back so my memory is a bit sketchy. I have a feeling it only affected the DisplayPort connection of the monitors with the fault so it's possible that a different connection is unaffected. I know we went through different cables, different drivers and even different cards - I think we found that AMD cards seemed (at least at first) to be less affected than Nvidia but eventually we swapped out the monitors and the problem went away. Nothing, as you say, in the event logs or anything else to shed some light on the issue. I think all you can do is what you're already doing - swap stuff round until you find the one common element....and then swear about it!
 
Right, it's been going for 40 mins solid on Heaven at 100% ... no sign of anything weird. Maybe it's just the games I've been playing! Dammit... I bet it'll happen later...
 
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Well, I finally figured out what has been going on. Maybe!

In short, the cables I've been using haven't been able to support the bandwidth. The monitor can support 160fps at 4k... but display port 1.4a sockets cannot... at least without reverting to using DSC.

I think what has been happening is that the monitor has been flipping between using DSC and not, depending on the use case... this checks in with the sort of 'monitor changing display' glitch that happens when alt tabbing out of game when using an Nvidia card. Display port 1.4 with a 2.1 DP bandwidth cable was a massive improvement but the glitch did occur again.

I'm now using the HDMI 2.1 cable that came with the monitor and it's been solid since... here's hoping I solved it. The issue has never arisen when using an older non-2.1 HDMI cable because my other monitors are only 1440p.

My hunch is that my PC can detect what the monitor can support but has no idea what cable is being used, which enables idiot users like me to make a mismatch. It then got choked out when the bandwidth got exceeded and it couldn't compress enough to get through the 1.4a display port socket.

Also, @Cenedd, what I'm describing here could explain what was going on for you, since it's Nvidia cards that apparently struggle with DSC turning on and off (i.e. when alt tabbing out of games). Thought I'd mention it if that's helpful!
 
Nitefly said:
Well, I finally figured out what has been going on. Maybe!

In short, the cables I've been using haven't been able to support the bandwidth. The monitor can support 160fps at 4k... but display port 1.4a sockets cannot... at least without reverting to using DSC.

I think what has been happening is that the monitor has been flipping between using DSC and not, depending on the use case... this checks in with the sort of 'monitor changing display' glitch that happens when alt tabbing out of game when using an Nvidia card. Display port 1.4 with a 2.1 DP bandwidth cable was a massive improvement but the glitch did occur again.

I'm now using the HDMI 2.1 cable that came with the monitor and it's been solid since... here's hoping I solved it. The issue has never arisen when using an older non-2.1 HDMI cable because my other monitors are only 1440p.

My hunch is that my PC can detect what the monitor can support but has no idea what cable is being used, which enables idiot users like me to make a mismatch. It then got choked out when the bandwidth got exceeded and it couldn't compress enough to get through the 1.4a display port socket.

Also, @Cenedd, what I'm describing here could explain what was going on for you, since it's Nvidia cards that apparently struggle with DSC turning on and off (i.e. when alt tabbing out of games). Thought I'd mention it if that's helpful!
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That's my understanding of it. The PC has no idea what cables you are using. The cables are used for digital information and if that information is corrupted, for example because the bandwidth of the cable is borderline, you wander in to unknown territory. In most cases the monitor just throws away the data and you get intermittent blank screens.
 
SpellowHouse said:
That's my understanding of it. The PC has no idea what cables you are using. The cables are used for digital information and if that information is corrupted, for example because the bandwidth of the cable is borderline, you wander in to unknown territory. In most cases the monitor just throws away the data and you get intermittent blank screens.
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Thanks for commenting. It’s funny because if you search for this issue you get all sorts of suggestions:

- driver issue
- faulty GPU
- faulty monitor
- faulty cable

… but of course swapping all these things around doesn’t solve the issue… or if anything made it look like the monitor is faulty. I’ve seen posts of people returning monitors for similar reasons and they may have fallen into the same silly trap.

Definitely makes me want to get a DP2.1 monitor and GPU to avoid these issues in the future.
 
Nitefly said:
Also, @Cenedd, what I'm describing here could explain what was going on for you, since it's Nvidia cards that apparently struggle with DSC turning on and off (i.e. when alt tabbing out of games). Thought I'd mention it if that's helpful!
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These were business PCs so nowhere near the limit of the bandwidth of even a piece of string. Forget but we're maybe talking 1920x1080, may have even been as low as 1024x768. It was definitely a faulty batch (multiple PCs affected) of monitors in my case. Haven't had the trouble since swallowing the cost of replacing the screens - you try getting a return on an intermittently faulty monitor that will test perfectly fine, when you're going through business channels (distribution) rather than say OCUK (who are, of course , fabulous) as a consumer.
Main thing that batch of PCs needs now is death by fire! Even the shiny new-looking ones are 8 years old! What do I know though! :rolleyes:

Edit: The info about DSC is useful to be aware of though, cheers.
 
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I’ve been having so much fun with my new PC that I’d forgotten to upload final build pics! Here she is, what a beaut :cool:

bGpXkK0.jpeg


VjbZwfZ.jpeg


Couldn’t be happier :)
 
SpellowHouse said:
Excellent!
I haven't seen that GPU support before. Is it part of the case? Looks really solid.
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Yes, it’s included with the case :) - Darkbase Pro 901. You might just be able to order it as a spare part, not sure! There is a handy spare parts order page on their website so might be worth having a look.

It also acts as a handy ‘cable tidy’ which is helping to keep things neat.

The way the screws attach are prone to scuffing the white finish, so it is very slightly blemished after me adjusting it after the GPU mod. Probably not so much an issue on the black version. Not a dealbreaker or anything, just something to be careful / mindful with should you purchase it :)
 
Thanks for the kind words. In truth, there has been nil effort from my side on making this look neat… other than clipping off the ‘rubber fan screws’ and deliberately not wanting an AOI cpu cooler.

All hail the Dark Base Pro 901!
 
is that a Noctua GPU or one you butchered to add the fans?
i know that made a few with Noctua branding and fans

Edit: never mind i found the post of you doing it
 
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