NV 12VHPWR issues revisited

[AdamK47]

I keep my 4090 under 320W to be on safe side.... will be interesting what will they do on 5090 if they do nothing we are insane if we let that pass also the news and review sites will be guilty of they do not point that 12pin connector is failed tech

Mine is set to use all 600W. Although I doubt it gets near that in most titles.

 

[CP5670]

I found that turning it all the way up to 600W seems to make it use more power without any increase in clocks or framerates. I keep it at 500W long term, most games are 300-400W and only a few RT games that can maintain high framerates at native 4K hit 500W, like Metro Exodus.

 

[igor_kavinski]

Update: My 4090 power connector remains melt and smoke free.

Sorry but you are clearly not pushing your 4090 hard enough

However, if your case has great airflow, I guess the temperatures aren't reaching melting range.

 

[igor_kavinski]

only a few RT games that can maintain high framerates at native 4K hit 500W, like Metro Exodus.

Have you checked how much the fps improvement is in this game going from 450W to 500W?

 

[igor_kavinski]

Mine is set to use all 600W.

Ah, I see you like to tempt fate

 

[igor_kavinski]

no issues with the connector.

*whispering* Did you hear the "click" when you plugged in the connector?

 

[poke01]

*whispering* Did you hear the "click" when you plugged in the connector?

I actually did! I knew then I was safe lol

 

[Golgatha]

I found that turning it all the way up to 600W seems to make it use more power without any increase in clocks or framerates. I keep it at 500W long term, most games are 300-400W and only a few RT games that can maintain high framerates at native 4K hit 500W, like Metro Exodus.

I've seen 500w power usage playing Cyberpunk 2077 at 1440p with RT turned on. Most games run about 350w or less though. For my second AM5 system, I have a 4070 Ti Super in it, but that card doesn't pull enough wattage to ever be of meltdown concern for the connector.

Edit: One thing worth noting is I have PCI3.0 native connectors on both systems power supplies, so there are no 8-pin adapters being used. It's all straight pin to pin connections with the power supplies.

 

[IEC]

My 4080 Super is fine so far. Granted it's capped at 320W stock TDP so much less likely to run into the issue.

I am waiting on a cablemod 12VHPWR cable set for my eVGA P2 PSU to arrive to swap it over to my main rig for the summer. I'm currently playing less demanding titles which generally hit FPS cap for my monitor (240Hz) and the monolithic GPU design is superior for efficiency in those <50% load scenarios. With outdoor temps exceeding 100°F and the HVAC working overtime I'd considered just swapping to my laptop for a bit, but I like my 32" monitors... and the laptop GPU probably won't cut it for driving those.

 

[CP5670]

Have you checked how much the fps improvement is in this game going from 450W to 500W?

I didn't check but the boost clocks are the same, 2950-ish, so it shouldn't matter. These cards are limited by chip lottery and power or cooling doesn't make much difference. The card just uses more power with the higher setting but the clocks stay the same.

One odd place where I get 500W (or 600W if I set it that high) is in certain underwater areas of Trine 5. This is a lightweight, non-RT game but somehow the water stresses the card. The rest of the game uses 250-300W.

 

[igor_kavinski]

One odd place where I get 500W (or 600W if I set it that high) is in certain underwater areas of Trine 5. This is a lightweight, non-RT game but somehow the water stresses the card. The rest of the game uses 250-300W.

Could be a bug. Report it and you could win a bug bounty!

 

[DrMrLordX]

I am waiting on a cablemod 12VHPWR cable set for my eVGA P2 PSU to arrive to swap it over to my main rig for the summer.

Didn't they recall all of those due to the impossibility of supporting the connector? Or is there a new version of the cable?

 

[IEC]

Didn't they recall all of those due to the impossibility of supporting the connector? Or is there a new version of the cable?

They recalled the angled adapters. They are still selling the cables for specific PSUs.

 

[DrMrLordX]

They recalled the angled adapters. They are still selling the cables for specific PSUs.

Oh okay. Interesting.

 

[IEC]

Update: The clearance between the side glass panel of my Lian Li O-11 Air and the 12VHPWR connector was not sufficient. While it did not dislodge enough to fry, it appears due to the strain on the connector (despite cable combs and avoiding bending near the connection itself) it was intermittently tripping some type of built-in protection causing all my fans to spin to 100% and hardlock the system. I have since removed the side panel on the case to allow zero strain on the cable and it seems okay so far.

I'm going to fault nVidia and AIBs on this one. There are MULTIPLE ways this could have been avoided.
1) slightly recessed connector/cutout on PCB
2) angled connector on PCB
3) connector facing down on PCB, or on the end, or other non-traditional location

Any of these would reduce strain near the connector endpoint which is IMO a setup for failure. I knew going in to be careful and it just isn't possible in my current setup to relieve the cable strain sufficiently to guarantee an adequate connection.

 

[poke01]

Update: The clearance between the side glass panel of my Lian Li O-11 Air and the 12VHPWR connector was not sufficient. While it did not dislodge enough to fry, it appears due to the strain on the connector (despite cable combs and avoiding bending near the connection itself) it was intermittently tripping some type of built-in protection causing all my fans to spin to 100% and hardlock the system. I have since removed the side panel on the case to allow zero strain on the cable and it seems okay so far.

I'm going to fault nVidia and AIBs on this one. There are MULTIPLE ways this could have been avoided.
1) slightly recessed connector/cutout on PCB
2) angled connector on PCB
3) connector facing down on PCB, or on the end, or other non-traditional location

Any of these would reduce strain near the connector endpoint which is IMO a setup for failure. I knew going in to be careful and it just isn't possible in my current setup to relieve the cable strain sufficiently to guarantee an adequate connection.

It’s just bad design, it doesn’t take into account the bigger cards need bigger cases too.

Also the 4080 Super is wider than the 4070 Super so that would mean more clearance is needed. It was manageable with the 4070 Super in my Thermaltake H18 but that’s only because it was a 4070S Inno 3D model, which is a lovely small card.

Any of the 4070Ti cards and up would have a terrible pain to install and maintain in my V18. They are so wide and big.

 

[Ranulf]

Steve at GN has released an hour long video investigation in the 12VHPWR cable... call it a "dumpster fire". I guess it isn't just about plugging in the cable all the way.

 

[AdamK47]

The power connector on my 4090 is still burn free.

 

[igor_kavinski]

5090 TDP raised to 600W.

Who wants to bet that some OEMs will ship 450W cables in some of their boxes? Or even some 600W cables will get burned when using Furmark on these GPUs? Can Nvidia manage to release the most expensive consumer GPU with zero drama?

 

[Muadib]

5090 TDP raised to 600W.

Who wants to bet that some OEMs will ship 450W cables in some of their boxes? Or even some 600W cables will get burned when using Furmark on these GPUs? Can Nvidia manage to release the most expensive consumer GPU with zero drama?

If that's a concern, then buy your cables from a third party. My power supply company sold replacement cables, so I bought one. I had no issues with the cables that came with my PSU, but this calmed my concerns.

 

[CastleBravo]

5090 TDP raised to 600W.

Who wants to bet that some OEMs will ship 450W cables in some of their boxes? Or even some 600W cables will get burned when using Furmark on these GPUs? Can Nvidia manage to release the most expensive consumer GPU with zero drama?

Have we officially heard the TDP is 600W? All I've seen is leaks saying the cooler design is for 600W. We heard the same 600W cooler leaks ahead of the 4090's launch.

 

[igor_kavinski]

Have we officially heard the TDP is 600W?

Nothing's official till Nvidia announces it. But multiple leaks are pointing at 600W.

 

[WelshBloke]

5090 TDP raised to 600W.

Isn't that the limit of the 12vhpwr "standard"?
That A) doesn't seem safe (given the issues it's had safely delivering lower power)
B) seems to show a lack of foresight in constructing a standard that's tapped out after a year or so.

 

[CastleBravo]

Nothing's official till Nvidia announces it. But multiple leaks are pointing at 600W.

Yeah, but how are these leaks different than the 4090 600W leaks? I suspect it might be AIBs and suppliers getting told to design a cooling solution to handle 600W just like what they were told for the 4090.

 

[jpiniero]

Yeah, but how are these leaks different than the 4090 600W leaks?

Memory bandwidth bottleneck made the clocks needed for 600 W a waste on 4090.