Final thoughts before RMA

timbo2410

timbo2410

timbo2410

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27 Dec 2009
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Trying to diagnose problems with "out of range" and "no signal" errors on display. This is the last effort prior to sending mobo and cpu back for possible replacement which could take up to 28 days. Any thoughts into diagnosing would help. System has been built for over a year prior without issue.
GPU has been in PCIE slot 1 and I have been using #1 GPU display port out all this time. CPU has been overclocked from 4 to 4.6 all this time. GPU has not been overclocked at all.
1. tried changing resolution/gsync - no change
2. tried changing cable - no change
3. tried changing screens (with same model Asus PG279q) - no change
4. tried changing to PCIE slot # 2 - error went away but came back shortly after
5. moved to PCIE slot#3 - error went away but came back shortly after
6. moved GPU back to slot #1 - used #2 display port out on GPU - runs fine
7. tried different GPU (GTX 970 G1) - issue still there
8. uninstalled reinstalled drivers - no change
9. updated mobo bios - no change
10. tried safe mode in windows - no change
11. tried safe mode on GPU - no change
I have stress tested CPU and GPU to see if there are any errors - none. Everything else works without issue (although after bios update I can't seem to get my ram back up to 3733mhz).
Any ideas ??
System:
Case: Phanteks Enthoo Primo
Mobo: Asus Maximus viii Extreme
CPU: i7 6700k @4.6
HDD: 3 X Samsung 1TB SSD 850 PRO SATA 6Gbps
Ram: 16g DDR4 Extreme Group 3733Mhz
CPU Cooler: Corsair Hydro Series H110i GTX
GPU: ROG GTX 980ti Matrix
Sound: Asus Essence 7:1
Optical: Pioneer BDRW
PSU: Corsair HX1200i 1200W '80 Plus Platinum
OS: Win10 pro x64
 
not without totally stripping my spare system .. ohhh don't want to go there. One is bad enough .. Oh and I did swap out my GPU and try it in a different system and the display port #1 worked without an issue .. so I think I can count out the GPU as the problem ..
 
I'd put the effort into trying it. You don't have to strip it out - just leave the spare installed where it is, move the case next to your system and disconnect the required cables and reconnect to yours. It'll be a 5 minute job.
 
Then I think you're out of options sadly. RMA time.

You haven't explicitly stated so, but I assume you've run everything at stock and removed the overclock?
 
yep tried that .. without overclock with safe mode in windows and safe mode on GPU (although that's not overclocked). Thought the bios update might have done something but no. The mobo was returned to OCUK and deemed to be ok. This time it's the mobo and cpu that are going back. They reckon that it might be cpu based. I just wanted to count out all the obvious and not so obvious.
The fault can occur at any time too. Usually just after windows starts, other times it's from boot (no bios display at all). Although at the moment I haven't had a fault with display port #2 from the GPU .. Oh and i have tried altering the hz on the screen to see if that makes a difference .. nope ..
 
Do you have a spare drive? I'd consider disconnecting the SSD/HDD that is currently installed (all of them) and hook up your spare and install Windows. At least that way you won't lose your data on your current installation of Windows.
 
I've backed up my c and d drives including windows and made a recovery disc via windows in case it all goes wrong .. I use c drive just for the os and d for software .. feeling quite ill at the thought of re-install ... but seriously, could it be drivers/windows ??
 
Does the system work fine using the onboard GPU? It sounds like a faulty cable issue since it seems to work sometimes when you switching ports and stuff and the problem persists through different monitors and gpus, but ya said you tried another cable.
 
Yep I used onboard graphics and it worked fine at 165hz and 2560x1440. I have swapped out cables from my other system as well. I have two Asus PG279Q screens and the fault is there with both screens and both cables. So thus far i think I can count out GPU, cables and screens.
At the moment I have no problems running 165hz at 2560x1440 from GPU display port #2. I've run all the stress tests I can think of for GPU and CPU with not a single fault. I also tried pulling the power supply out from the screen while in the faulty gpu display port #1 and it made no difference .. no signal
 
What happens if you plug a monitor into both ports and then hit windowskey+p and select extend or duplicate?
 
timbo2410 said:
or do you mean spare hdd, install windows onto that and test with just a new windows?
Click to expand...
I meant a spare harddrive, yes. Or just backup your current installation with Macrium and use your current drive to reinstall onto. That way you'll have a backup of your existing setup.

From your above replies, this is sounding more and more like a software or driver issue - which is why I suggested a reinstall.
 
Yeah sounds like its stuck on your second port, run DDU then turn off and plug a cable only into port 1 then reinstall.
 
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