Rtx 4090 suprim, sudden black screen, fans max rpm

[amdx6154002d9]

I have also started suffering from black screen + max fans completely random (even at idle).

I run an MSI suprim x 4090 on cablemod c series pro modflex, 4x8pin, vertically mounted, no strain on the adapter in a lian-li o11 dynamic evo case powered by a Corsair AX1600i PS. I used this cable for 3 months and never had any issues untill 2 weeks ago. I have run a constant gpu-z temp control report to file, even with manual fan control, its not the temperature.

to note: running (per cablemod support suggestion) “prefer max performance” setting in nvidia control panel + ddu + reinstall latest driver + re-seating the table = reduces the crashes to 1 crash every 1-2 days . But after this, during the last few days, it only happened to me on idle / browsing in firefox ( weird… but noted). Using it on 100%, for example in games such as plague tale - requiem or cyberpunk with no dlss lasted 20 hours straight… closed it manually, no crash.

to note2: swapping back to original nvidia splitter completely fixed my issue, but i have never used that cable before).

to note3: based on all other internet posts on black screen + max fans its either a cable or driver fault. Based on my experience and the frequency, relative to how these have started in december , seems like cable warn off

conclusion: need more info, but it seems the cable wares off in time and missfires on the power sensing pins and crashes. I will test this with an OEM corsair 600w cable , but having this not happen with brand new nvidia’s oem (not used , max1-2 days) does raises a question

 

[amdx6154002d9]

I have tested with the official Corsair VGA PCIe5.0 12VHPWR (CP-8920284) yesterday as recommended for my PS unit for this GPU by Corsair, and it is one thick cable and far less bendy than the cablemod. I have been using it for the last 18 hours without any crashes at all (i removed the “prefer max perfomance” setting from nvidia cpl). So far this seems to confirm my findings.

The cablemod variant seems in good shape with no damage whatsoever… so, outside of my findings above, I am not sure what the issue was, but cablemod support offered to replace it based on everything I detailed here and the pictures (prooving no bending, physicial or any other user mounting issues).

 

[swifthit157502e2]

Happens to me only if I bump my desk by accident it goes black screen full rpm.

 

[amdx6154002d9]

Happens to me only if I bump my desk by accident it goes black screen full rpm.

That seems completely mechanical / electrical, irelevant to the case presented here.

However, that is not ok... you should get your electrical tested by a professional electrician, that is a hazard waiting to happen...

 

[swifthit157502e2]

That seems completely mechanical / electrical, irelevant to the case presented here.

However, that is not ok... you should get your electrical tested by a professional electrician, that is a hazard waiting to happen...

Yeah I will have someone look at it.. I'm using a cablemod cable as well, that could be the issue if they wear down over time. I'm keeping a watchful eye on the pc and not letting it idle much at all without me present.

 

[solarisir15a002dd]

Hey all, I also started having the black screen issue with my cablemod braided cable but gave me black screen and full fan rpm, changed it back to the Nvidia adapter but continued to give me black screen but fans operate normal. Not sure if it's a GPU issue or what, just installed today's driver 531.18 as per MSI tech support advice but they told me they know of the Nvidia issue that was supposed to be fixed for all 4080 and 4090s, asked me if I wanted an RMA but I'm on the fence on sending it and have to wait a long time for a replacement or to just getting back the sale if they can't reproduce...