OK PC Techheads, need your help - odd 3D glitching problem

Asp Explorer

Asp Explorer
If you are getting glitches in the W10 loading screen something definitely isn't right.

Just to be sure - I'd try a different TV/monitor and cable - it's worth a shot at this point.
 

[HJ]-RedRaven

[HJ]-RedRaven
Asp Explorer said:
If you are getting glitches in the W10 loading screen something definitely isn't right.

Just to be sure - I'd try a different TV/monitor and cable - it's worth a shot at this point.
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hehe yeah I'm flummoxed. Never seen an issue like this... usually its just poof, kaput, smoke... new PC.
Nah not the monitor - in Elite the glitching is both on the Rift and in the monitor window.

But the tiny glitches in the Windows loading pips and also the Oculus Home buttons (in the desktop app part, the buttons go wierd when you mouse over them too)... sounds like something is messed up in hardware. But not the video card itself.

True enough it could be power, but I think the PSU itself is fine, could be a busted cap on the board somewhere... they're all metal caps so no visible poppage :)
So many could be's.. PCI power traces/caps/ data traces etc. Blegh.

Tonight I'll install the NvIdia driver and a game and see if its still glitching. If so, a shiny 6700K Skylake and mobo should sort things out! :p
 
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[HJ]-RedRaven

[HJ]-RedRaven
OK nVidia 375 driver installed, Oculus installed, glitches remain.

I can only imagine its a hardware problem with the motherboard. Bad trace in PCI-e etc.

Might give the second PCI-e slot a go, if I can set that to primary video in the BIOS.
 

Asp Explorer

Asp Explorer
True - you may have a crushed PCIe pin or similar - nothing but a good look or a board analyzer will tell you. In the good old days you could just desolate and plop in a new one, but it's cheaper to just buy a new board these days.
 

Sanderson

Sanderson
Sure sounds like the GPU to me. Sounds just like an OC issue I've ran into a few times over the last decades. I mean exactly like an OC issue.
 

dogbite

dogbite
[HJ]-RedRaven said:
OK nVidia 375 driver installed, Oculus installed, glitches remain.

I can only imagine its a hardware problem with the motherboard. Bad trace in PCI-e etc.

Might give the second PCI-e slot a go, if I can set that to primary video in the BIOS.
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Retract my last conclusion. After re-reading the thread and re-watching the video, it looks like a faulty video connection causing interference. If you are getting glitching without the Rift connected to the pc you can rule out it's cable. The cable to your monitor and the monitor port could be suspect. Could also be interference from the psu or mobo. Tis a quandary. Please keep us posted. gl
 

[HJ]-RedRaven

[HJ]-RedRaven
Hehe no worries dogbite - its not the GPU... I get the glitches in VR and in 2D, on the GTX1080 and the older 780GTX. The integrated GPU in the 3770K also glitches - not in 3D but it still has issues with the buttons in the Oculus Home menus (2D - it won't run the HMD). When you mouse over the button, they twist and warp into little triangles.

It like a vertical sync issue - the GPU renders fine but the viewpoint info isn't coming through from the CPU properly - the viewpoint generally moves up and down in the vertical plane only. In Oculus Home the little cursor dot is rendered as about 4 dots

Also, on Youtube - the little loading triangle with the circle around it glitches like crazy when loading the next video (also in all 3 GPU's). Sometimes the glitches in the W10 UI are enough to crash Chrome.

I'm thinking its a board failure - the PCIe slot itself looks fine (and I hadn't swapped the cards when it happened). But with trying two different GPU's, plus the integrated graphics, and seeing problems in all three, I suspect something near the CPU on the board... a broken trace or burnt cap/resistor. However, its nothing visible.

After mostly ruling out all the hardware apart from the cpu and motherboard, reinstalling Win10 as well and still seeing the glitches... *sigh* the 3770K was a good chip too *snif*.

Looks like a *forced* upgrade for me! (ran it past the wife and didn't get the brick-wall-of-death-oh-no-you-don't stare of demolition :D so I'm guessing I'm cleared for wallet takeoff).
 

[HJ]-RedRaven

[HJ]-RedRaven
Pulled it all out of the case this evening, just to check if there was any dust or a monster (dead) cockroach shorting some pins out. Nope; a little dust, but after cleaning it all up and plugging it all back together unsupported on the desk ghetto-style, its still showing the same glitches.

Last thing is to try the other PCIe slot... not sure how many lanes it has etc on this board.

Edit: OK tried the second PCIe slot, posting from it now. :) Still all glitchy in oculus Home and elsewhere. It really mangled the Win10 boot image with the clock text this time.
Looks like a new board for me...soon.
 
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shadragon

shadragon
One last thing you can try. If you have a pencil with eraser, or one of the large pink erasers, use that to clean the gold contacts on the GPU card. They can get a bit dirty over time and lose contact. Unseating and reseating should fix that, but I have seen a few that were fixed with a cleaning.

Do this away from your PC as it will make a lot of small pieces and make sure you blow it all off with canned air or some such (not your breath).
 

[HJ]-RedRaven

[HJ]-RedRaven
shadragon said:
One last thing you can try. If you have a pencil with eraser, or one of the large pink erasers, use that to clean the gold contacts on the GPU card. They can get a bit dirty over time and lose contact. Unseating and reseating should fix that, but I have seen a few that were fixed with a cleaning.

Do this away from your PC as it will make a lot of small pieces and make sure you blow it all off with canned air or some such (not your breath).
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Thanks shadragon - its good advice - one that I knew from my time in IT (I used to sell PC components wholesale in a former life). I've cleaned many ISA, VLB, PCI, AGP and PCIe cards up with an eraser (or a rubber, if you're English like me) lol.

I had the mobo out of the case and running bare on my desk last night... moving the GTX1080 left or right by ~30 degrees didn't even crash the PC. Slots were fine, no dust/debri. Must be something deeper in the motherboard, a trace or resistor related to the PCI slot. Possibly something even in the cpu itself, although I've never had a cpu fail.

The P8Z77-V Pro mobo has performed well, even though some component has outright failed. I've used it fairly hard over the past 3 1/2 years. Its seen 8800GTX, 780GTX and now the GTX1080 GPU's.

I'd had enough of its shenanigans last night and ordered a new i7 6700K 4.0GHz cpu, Asus motherboard and 16GB of DDR4, a nice AlphaCool water kit and a 500GB Samsung SSD for the rebuild. Should keep me going for another 2-3 years!
 

shadragon

shadragon
[HJ]-RedRaven said:
I'd had enough of its shenanigans last night and ordered a new i7 6700K 4.0GHz cpu, Asus motherboard and 16GB of DDR4, a nice AlphaCool water kit and a 500GB Samsung SSD for the rebuild. Should keep me going for another 2-3 years!
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Glad to see you handling the stress with, what my wife would call, retail therapy. :D
 

dogbite

dogbite
[HJ]-RedRaven said:
Haha its been a while, this PC is early 2013 :)
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I just built a liquid cooled Skylake machine a few weeks back and relegated my trusty 2550k to email and backup duties. Although you probably won't see a big improvement in ED, over your 3770k, the added clock and ddr 4 will give you a nice boost in things like DCS or racing sims like Assetto Corsa, PCar or IRacing. Given your Warthog and Clubman, I suspect you play some of these. Good luck with the new build.
 

EdzUp

EdzUp
One thing I would try is reseat the CPU and all cards and cable's. I had a issue once like that where the CPU was raised a little off the socket.

If it still does it you might try a Linux live CD and see if that glitches, if it does then it could be the CPU or mobo that is faulty.
 

[HJ]-RedRaven

[HJ]-RedRaven
EdzUp said:
One thing I would try is reseat the CPU and all cards and cable's. I had a issue once like that where the CPU was raised a little off the socket.

If it still does it you might try a Linux live CD and see if that glitches, if it does then it could be the CPU or mobo that is faulty.
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Yeah EdzUp - I think it is the motherboard that is faulty - using different graphics cards and even the integrated gpu in the 3770K all show similar glitches. I pretty much ruled out everything but the power supply, but its possibly least likely to give a problem like this.

Started my new build last night so will hopefully be back in VR by the weekend.
 
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[HJ]-RedRaven

[HJ]-RedRaven
OK, back in the game as of last night with a new rig. Hmm, the visual glitches seem to have disappeared entirely... fancy that. :D

i7 6700K 4.0GHz @4.7GHz on H2O
AlphaCool 240 D5 Water cooling Kit
16GB Corsair Dominator DDR4 3000MHz
Asus Maximus VIII Hero Z170 motherboard
Samsung 850 EVO 500GB SSD

The i7 6700K feels like a decent improvement over the 3770K - not a huge amount of difference in ED (slightly quicker cpu rendering times but that's about it).
Terrifically fast boot-up (about 8 seconds to desktop), easy to use BIOS and excellent overclocking tools.

The Alphacool watercooling kit came with everything I needed; good compression fittings, tubing, nice heavy block and radiator, fans I can't hear. Double 51/4" bay reservoir with solid-performing Laing D5 centrifugal pump. Recommended, not a single drop leaked so far.
Kept my older Corsair Force GS 240GB SSD as my boot drive, and now Steam and Oculus Home apps can all go on the new Samsung 500GB. I'm not a huuuge media collector so my (really) old Seagate 7200rpm 320GB drive is housing music and movies.
Happy to see my Corsair 850 PSU keeping everything fed.

Tore around in the SRV last night showing my son and had vertigo after a few minutes... being out of VR for essentially two weeks has left me in need of some re-acclimatisation!

Thanks for the suggestions, thos of you who followed my descent into horrible judder land at the hands of my slighty-failed motherboard.
See you all in the black. *cue throttle mashed forwards*
 
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Asp Explorer

Asp Explorer
Enjoy the new build!

It would be fun to go through your old board with a multitrace and find out exactly what failed on it - a good evening or two's worth of nerdtertainment :D
 
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