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12VHPWR on RTX 5090 is Extremely Concerning
- Thread starter Bernoulli
- Start date
cinnamonandgravy
Member
wish the pci-e slot would just supply the power
comes with its own issues i know, but something about plugging power cables into a GPU seems dumb
comes with its own issues i know, but something about plugging power cables into a GPU seems dumb
//DEVIL//
Banned
Impressive that Astral is the only card that has sensors for this connector to give you an actual warning if the cable is heating or not connected properly.
Expensive or not, it’s the safest card to buy it seems.
Glad u picked that when I did order it from Best Buy ( still not get shipped lol )
Expensive or not, it’s the safest card to buy it seems.
Glad u picked that when I did order it from Best Buy ( still not get shipped lol )
Buggy Loop
Member
Outside of memes for a minute, I saw some interesting counterpoints from good sources
and Jonny Guru, THE Jonny fucking Guru, which is the #1 reference of PSUs probably worldwide, director of R&D of Corsair's PSU unit and huge experience
Maybe his setup is borked.
Will be interesting if GamersNexus drops in again with the answer like last time.
and Jonny Guru, THE Jonny fucking Guru, which is the #1 reference of PSUs probably worldwide, director of R&D of Corsair's PSU unit and huge experience
Maybe his setup is borked.
Will be interesting if GamersNexus drops in again with the answer like last time.
peish
Member
G-DannY
Member
Yes... DerBauer is also just Thermal Grizzly's CEO, but anyway....
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simpatico
Member
I'm an electric wiring designer by trade. The pins in these GPU connectors are very similar (potentially identical) to the Molex Mini Fit Jr family. The largest wire they can accept and stay within industrial code is 18awg. In his video, he measured 23A (!!!!) going through a single one of these. Personally, I won't use mini fit pins for anything other than inputs, instrurment control voltage and maybe the power for a button's ring light. Carrying an actual load through them is insanity. I don't see why they just don't move up to any number of higher rated connector families. The cost difference is negligible.
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TehGoomba7s
Member
Is there any details out there about how much cost say a 5090 build would add to ones electricity bill per month?
simpatico
Member
The wattage numbers are out there. It depends what you pay per kWh.
Magic Carpet
Gold Member
My cable is still sitting in the Corsair box. Bought that PSU over a year ago in anticipation of a new GPU (at a reasonable price).
I have a RTX 4070 sipping power from a 1200watt PSU.
In my area it's 11.5 cents per KW hour
600/1000=.6kw/hr X 11.5 cents = about 7cents an hour.
If I was to play a big open world game for 100 hours that 100X.07 or $7.
7$ just to run a 5090 as fast as it can go for 100 hours.
That poor cable never stood a chance.
I have a RTX 4070 sipping power from a 1200watt PSU.
Take the wattage (600w) multiply X your electrictiy cost.
In my area it's 11.5 cents per KW hour
600/1000=.6kw/hr X 11.5 cents = about 7cents an hour.
If I was to play a big open world game for 100 hours that 100X.07 or $7.
7$ just to run a 5090 as fast as it can go for 100 hours.
That poor cable never stood a chance.
panda-zebra
Member
Hugely disappointed to sit through this whole video without seeing him lose at least one of his fingers as the cable melted and disfigured him for life.
rm082e
Member
Max graphics settings + Native 4k resolution + high frame rate (above 100fps consistently). You can have two of those three things with lower tier cards, but if you want all three at the same time, you need the most powerful card you can get.
I think with an RTX 4090 if you crank Cyberpunk to the max in everything at 4k, with no frame generation on, it runs in the high 60s to low 80s most of the time. If you own a 4K gaming monitor, it can feel like you're missing out. PC gaming is a helluva drug.
I'm on a QHD 165hz monitor with an RTX 3080. My brain is not capable of detecting any difference above 90fps. I can barely notice any difference between 60 and 90. I'm just not sensitive to the higher refresh rates like some people are (my son for example). Yet I still feel this little itch telling me I should be playing all games at a rock solid 120fps, "just to be sure". It's totally dumb. I cannot justify it logically at all. But when I see a game that's not running buttery smooth, it gives me a tiny bit of disappointment and anxiety. The idea of eliminating that feeling by getting a shinny new toy is alluring for some reason. When I am able to buy an RTX 5080, I will. Not because I need it, not because it will do me any good, but because it will feel "right". And yes, I am part of the problem.
V1LÆM
Gold Member
I'm on 1440p 360Hz now.
I did try 4K a while back and yeah I could tell the difference but after a couple days I didn't care and my overall performance took a hit because of how more demanding it was. returned it for a 1440p 144hz monitor then recently upgraded to 360Hz.
My previous card was a 4080 and it was amazing of course but going to 360Hz was too much for it. The only game I could play at 360Hz was Valorant. That's why I wanted to get a 5090. With 5090 I can play at 360fps in cyberpunk with everything maxed out. Yes it's "fake frames" but I can't tell any difference. Feels so much better.
Hohenheim
Member
I did the opposite.
Had a 1440p 360hz OLED, and changed it for a 4K 240hz OLED.
I can't tell the difference between 240 and 360, but I enjoy the sharper picture on the 4K screen, both in games but also in windows and various software and stuff.
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Mithos
Member
I just wished there was BIGGER 1080p/High refresh displays. I'd get a 1080p/240hz 50" before I get a 1440p or 4K display.
SegaSnatcher
Member
I think its insane that people are paying $2K for a GPU that can't even run every game currently released at native 4K max settings and achieve 60fps. There are still games where DLSS is necessary.
Please tell me why you are supporting Nvidia with these clear price gouging tactics? PC gamers with more money than brain cells are the reason why they keep doing this.
Please tell me why you are supporting Nvidia with these clear price gouging tactics? PC gamers with more money than brain cells are the reason why they keep doing this.
marquimvfs
Member
Yeah. They were trying to answer the diy community's desire of a smaller cable that would look better in the build. But they fucked up big time doing that, and also didn't put the fucking connector in a better position for cable management. Why the hell they thought that just making a smaller conector was a good enough solution? If they kept the 2x 8pin setup, but enforced a different position for the conector on the board, it would be more than enough for most setups to look cleaner.
simpatico
Member
Or just run four 10awg wires and have all the power their hearts desire.
S0ULZB0URNE
Member
Which model?
S0ULZB0URNE
Member
What to do? I have a 1350 watt TT Toughpower.
Ulysses 31
Member
There's also PCI-E 5.1 these days.
Luckily the updated Seasonic Prime-XT 1600W has both PCI-E 5.1 and ATX 3.1!
Kilau
Member
I’m sure it’s fine, just be extra aware when connecting the power to the gpu and PSU sides.
Ulysses 31
Member
Someone's salty. 
Someone's salty.
He got caught, plain and simple. Der8auer said it can happen and he never said that it's safe. Hardware Busters said it was impossible to happen. One was right, and one was wrong. Hardware Busters should simply take the "L" and move forward, not act like a little child. Jesus.
S0ULZB0URNE
Member
Can I run the other cable?
Someone's salty.
"How to Ruin a YouTube Career" would be a better video title.
Kilau
Member
The 12V-2x6? You just have to find it separately which may not be safer than using the 12VHPWR that came with your PSU, but it’s the same shape connector just the pins are shorter to prevent partial connection.
S0ULZB0URNE
Member
Edit: didn't see you replied
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HeisenbergFX4
Member
Guess I didn’t look at the actual model but its returned now since the 5090 was acting funky
peish
Member
Someone's salty.
He startup Cybenetics. It is time to unpay for our Cybenetics power supply certification. This guy now shown to be untrustworthy, do you trust his certification on your power supply now?
Cybenetics Labs – PSU Efficiency & Noise Level Certifications - Our Team
www.cybenetics.com
Kilau
Member
Ok, but what 5090 was it?
HeisenbergFX4
Member
Oh it was an MSI what looked to be a Ventus 3
Kilau
Member
That sucks, I liked the look of the Ventus and the Suprim, you got something else lined up?
HeisenbergFX4
Member
Best Buy gave me store credit for the return for when I want to order something and still have a CLX 9800X3D 4080 super that I haven’t returned and think I will just keep and while at Best Buy they had a Cyberpower also with a 9800X3D with a 5080 open box buy so I brought it home for the heck of it having 2 months to return it but its loud
I guess its why it was returned as it has a 360 MM rad on the CPU but its ramping up just installing games not to mention when I really throw something at it, its annoying loud.
I guess reposting the CPU cooler might fix it but not fucking with it
Honestly still overly happy with the 4080 super CLX prebuilt, its very quiet
I will likely just return this 5080 build and keep the nearly $5k credit waiting for stock to pick up and grab one I really want and avoid ones like Cyberpower or Ibuypower
SmoothBrain
Member
What an absolute shitshow 2025 shapes up to be.
S0ULZB0URNE
Member
You returned the PSU?
peish
Member
conclusion is to use a brand new cable when you upgrade new gpu.
samuelgregory
Neo Member
The main issue was that 12vHPWR was not built with appropriate safety margins. This meant that many issues, including manufacturing defects, can cause a cable to melt. Anyone that knows anything about manufacturing knows that defects happen, so when you ship thousands of cards/cables, there's going to be some failures.
This is supported by looking at failure rates. 4080 melting failures were extremely rare(only a couple documented cases on the web), and no 4070 TI failures have ever been reported, even though they use the same cable. The lower power consumption associated with these lower end cards provides a larger margin of safety.
GamersNexus did a massive disservice to the community by immediately jumping to the "user error" conclusion when he managed to replicate the issue in that way. As soon as he did that, Nvidia immediately latched onto the theory that allowed them to blame their customers, when in reality, only some of the failures can be attributed to user error. Just because he could not replicate a failure under normal conditions with the parts he had does not mean that others did not have defective parts.
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xenosys
Member
Someone's salty.
Douchebag #74565634 trying to make a name for himself off the back of a much more successful content creator.
HeisenbergFX4
Member
I returned the entire PC
