Just had a Guy on the PCMR Facebook group tell that Corsair makes shitty PSU's because they don't have a dedicated 12VHPWR connector on the PSU side 😂. Let me tell you how shit their PSU's are I have a AX850 from 2010 that I still use to this day it's basically never been turned off in that time as well and I've never had a problem with it ever It the only component in my PC that's still original to my first build.

My MPG msi 1000w psu has the 12VHPWR slot. The cable is a single connector (but it has a yellow tab) but from my understanding you only need that one cable to run an rtx 4080. I ditched the splitter cable and directly connected the 12VHPWR cable in the rtx 4080. I definitely heard both sides click. 2 months have gone by and no issues I play red dead redemption 2, cyberpunk2077, and God Of War Valhalla. When I leave for the day I do turn the computer off as I dont want any accidents to happen. But msi has labeled the cable "600" and it's the only cable with yellow tabs. You could feel and hear the click of the cable it's very audible and you can feel it.

I love this deep dive into power supply cables, honestly it's fascinating. Such a tiny thing that can make such a difference.

The Super Flower Leadex VII XG also comes with an adapter cable instead, with a ton of CPU/PCI-E ports. It's an awesome power supply!

Yes, quite smart of them and their converter cable is also very high quality. I have an AX1600i power supply that I bought before the 12VHPWR was a thing and then I just bought the cable and mounted it without any bends in the cable. I've heard from many failures with CableMod connectors which were overheating with high power draw. This cable feels like the opposite. I'm very happy with it and feel safe with the solution I have. That includes using a water block and installing thermal pads on the front and back of the GPU though... That together finally gave me peace of mind 😅

Maybe I have been lucky but I have been using a 12vhpwr connector and no issues since launch. I have upgraded the PSU to the new ATX 3 PCIe 5.0 standard so direct 12vhpwr to 12vhpwr cable and all good. I do make sure it is connected fully.

That's what I was thinking, thank you for making this video.

I built my 4090/7900X3D system in May of 2023 and did SOOOO much research when it came to the 12VHPWR cable. I noticed that Corsair was doing it differently by using 2 8 pin connectors instead of 4 which got me into researching them more. I'm so glad I chose them as my power supply even though I had to buy the cable separately because at the time they weren't including the cable in PSUs since they had just released it. It's the same cable Derbeur uses and he says it's the one that gives him 0 issues.

@G98SH

6 ай бұрын

Im in the same boat as you right now, looking at that 4080 super and my rm850e came with a 600w cable. Just not sure if I should use 3 separate cable into the one nvidia provides or use the corsair one. (Id have to buy another corsair pcie cable as it only came with 2)

@DroolingDrilling

4 ай бұрын

@@G98SHwhat did you end up doing? I just “finished” building my build which has a 4080 super. I’m also curious if the adapter that came with the card is the new one and if the one that came with my PSU (RM1000e). Anyways curious what ended up working for you.

I still use my Cablemod 180° Adapter on my Strix because otherwise I cannot close my side panel. I limited powerdraw of the card to 300W to be safe. This is a scandal... All cards should be recalled to be honest

Jon Gerow has stated why in an interview eTeknix. The reason is that the issues with 12VHPWR were well documented. In this case, primarily the bending concerns. Something which is a big concern on the power supply side. He didn't mention melting connectors, but considering how easily the connector can be unseated and cause a resistance issue leading to a melted connector, is even more likely on the PSU side and would be much harder to see. He went on to talk about the fact that Mini-Fit Jr. is more capable than 12VHPWR, so there is no reason to use 12VHPWR on the power supply side. That's straight from their lead engineer. Case closed.

@HardwareAccent

6 ай бұрын

Big thanks for the info.

@TheGameBench

6 ай бұрын

@@HardwareAccent No problem!

Lets be real here, this connector just sucks for big currents, it doesnt have big mating surfaces with a good design, and der8auer among other people is saying so as well. I dont think that its very likely to cause a fire, but usually just melting connectors. In the end the 6 and 8 pin plugs are about as good at carrying power per pin, but they are not allowed to be taxed as much as the 12VHPR connectors, which is good. They should have used something like a XT60 connector, less pins but bigger ones, so it would also save space compared to the 6 and 8 pin connectors, but not sacrifice connector life (and not waste any electricity due to poor resistance). I also wonder how bad this problem is going to get, as I would expect the springy contacts in the connector to slowly weaken, especially when they heat up and cool down every time the PC is turned on and off. I am glad my RTX 4070 has an 8-pin plug.

This is why you stick with stock cables and good size cases

@samson7294

6 ай бұрын

true, Corsair did such a good job with the 12vhpwr that they made me a customer for life

my corsair shift 1200w psu melted on one of the 3 psu connectors , but the wire connector is fine

For the 5090 they should use 3 8 pins again but still use the 12 vhpwr cable but not at the 600w and use the data pins So majority of the power comes through the 3 8 pins but the 12 vhpwr is capped at 300w or 200w but have full access to the data pins All 5000 series gpus should come with strong 12vhpwr cable that dont need to be bent

thank you

This is deep!

At this price I expect pretty much a highly tested, secure, high quality hardware product and not a seriously dangerous GPU with the risk of burn. My theory for the 12 pin connector is that they implemented it, cause they dont wanna deal with thousands of GPUs being send back cause users dont have enough 8 pin connectors left or wouldnt connect all 3 of them. I would cause bad reviews by the non-technical "gamers" who might switch to AMD or to the 4080. I think DerBauer showed a tech sheet of 8 pin cables and each can deliver around 250W..So 3 of them wouldnt have been a problem. But who knows why Nvidia did what they did. Its just a total no-go..

@user78405

6 ай бұрын

actually its 150w ....there is no 250w version is unheard of when it will overheat the 8pin cable by gonna 250w ...when 2 8pin already gonna 300w combine 150w each plus 75w from slot ...but 7900xtx gonna 400w ...that really required 3 -8pin connectors to draw a total 450w + 75w from slot...that's maximum can draw from psu current due to Japanese capacitors are not design go beyond 450v peak its why bigger psu comes 2 capacitor total 900v 12v rail..remember original it was gonna 75w for 6pin pcie...extra 2 pins were extra 12v power...of 75w ...instead having too many 6pin connectors on gpu card...so adding 2 pins was seem good idea back then but it was never tested before like now...cause it was never needed go beyond 150w before, when AMD introduce 3-8pin connectors that cause ruckus with psu folks of adding more risks on 750w to 650w psu, when majority are pc users vs 850w to 1000w are minority group who purchase it. remember its just PSU...bigger it gets , higher risks it gets from size of wattage on 12v when 120v outlet can only goes as far as 1500w total for wire ...its not 240v outlet what servers uses today to get 8500w to 10500w depending amps on cable ..they can do it at 20amps psu 240v that gives 200amps of psu transformer

i picked up a cablemod 12vhpwr modflex cable as soon as they took orders. but mine has a x3 pcie side and it's been working great with my 4090 strix. i even put a huge candy cane like bend in it near the plug. had the gpu in and out a bunch of times too so mine seems okay i guess. but yeah user error or not it's clearly a flawed design as we've see some of these fully plugged in and still melt. and nvidia didn't help by including an ugly/rigid adapter ppl can't even use because of space and aesthetic reasons.

Got yourself a new subscriber.

When I bought my Corsair HX1500i it came with a 12+4pin PCIe Gen 5 12VHPWR 600W cable but yeah on the PSU side they don't use it.

@erikarnold4737

6 ай бұрын

Did yours come with two of those? I just put the exact same PSU in my new build (powering a 4090) and the hx1500i came with a separately boxed 12+4 cable. I'm just not sure why they did that and what to think.

@mayumikentei

6 ай бұрын

@@erikarnold4737 Only came with one off those cables. Which I was thankful for. The adapter that came with the 4090 was awful.

@erikarnold4737

6 ай бұрын

@mayumikentei Hmm, don't know why I got two, then. Yeah the nvidia one is just wild. Thanks for the response!

I’ll be building a new system next weekend with an RTX 4090 MSI Suprim X paired with 7800X3D. Using Be Quiet Straight Power 12 series 1200w as the PSU. I’m tempted to under-volt and set a power limit to 450w. Am I overthinking things?

@HardwareAccent

7 ай бұрын

Up to you. I would probably just use the included converter when still in warranty period.

@theexpatgunner

7 ай бұрын

Yeah I think I’ll do that even though the PSU supports 2 of the PCI 5 16 pin connectors.

so should i buy this corsair x1500i atx 3.0 with 12vhpwr cable to use it on my rtx 4080 super card , it wont burn?

@HardwareAccent

4 ай бұрын

I would probably use added to the GPU converter. Just to be on the safe side in case of a warranty claim.

der8auer's video does a great breakdown on why the 12VHPWR standard is rubbish - hardly any safety factor... personally I hope it goes away and NGreedia is forced to eat their dumb implementation

@shadowrealms2676

7 ай бұрын

They will put it on the rtx 5000

EVGA definitely got out at the right time :) Nvidia doing Nvidia things

Northridge fix is repairing 20 RTX 4090s a day: kzread.info/dash/bejne/X5NomcSQcrzbpMY.html

12v-2x6 replaces 12VHPWR now. This Corsair solution can't implement the SENSE pin signals (because no SENSE pins) therefore its not as safe and therefore it is inferior to the 12v2x6 connector.

@wiiinston17

5 ай бұрын

But the 12v2x6 needs to be on the PANEL of the psu so any current psu using 12vhpwr native won't be ATX 3.1 i.e. inferior. You can only solve this by buying a new gpu and psu

@QuintinHowell

5 ай бұрын

@@wiiinston17 yes the PSU and GPU connection side needs the shorter sense pins and support 0v state

yes its a problem in the 4090 not the 4080 though i havent heard about any melting connectors on the 4080

I take a different approach to this problem. Some 4090 owners attempt to push their GPUs to their maximum limit to gain a few FPS. This is similar to making engine mods to increase the HP of their 140HP-rated car engine to 250 or more HP. We should all know what to expect, expensive repairs or a dead engine. I've owned my 4090 since they became available and kept the power switch to its default position. I also use the default BIOS settings, except for the ems one, and never try to push my system RAM to more than 6000mbps. I have less FPS than a pushed GPU, but I can live with that and enjoy having a lower system temperature and a GPU that should last longer. Sometimes, we are our own worst enemy. These are just my own thoughts, and your mileage may vary.

It's the reason i bought another corsair PSU.

8pin vs 12vhpwr, 8pin all say 150watts but thats not true the 8pin of today can 220watts and more so 1x12v is weaker then 2-3 8pin so if you use 4 8pin at 1x 12v the watts at the 8pin can have 1000-1200watts+ but the 12v only 600watts 600-1200watts at this tiny connector why nvidia think its a good idea? its like a chinesefirework :D set the 8pinx3 or x4 or 12v to backplate or too the end of the pgu in the casefront and its no problem! corsair dosnt have it bcz. corsair is not stupid :D

@shadowrealms2676

7 ай бұрын

And they keep releasing new revisions of that damn connector

@user78405

6 ай бұрын

not true , i did tested myself on 7900xtx with 2- 8pin and it will crash entire psu when gpu gonna over 400w, no, it won't allow any 8pin gonna over its limit specs of 150w due to psu end part of capcitor are not design gonna over the limit threshold that cause burn out of small components in your psu so it has built in saftey switch to reset the unit if one cable gonna over its 150w that will trigger it ...2 cables only goes 300w plus pcie slot 75w ...max total is 375w for 2 cables ....and 3 cables max total is 450w and it reach capacitor threshold to cause coil whine louder when your card ask too much current from supply side. Not many 3rd party AMD cards want to go all 3-8pin due to costs and high risks added when dealing consumer PSU side are not everyone have 1000w or 850w minimal specs ...anything bellow is asking for trouble on card uses 450w...heck you know why AMD cancel highend rdna4 chips ...its 500w part with 12288 compute unit chip that split into workgroup clusters

Good old news. It’s outdated already.

I don't know man, i have yet to hear about a burned 12VHPWR connector from a competent source. Most tech-tubers run 4090s in their rendering/gaming machines so surely after all that time if the connector was inherently flawed the likes of GN , HUB etc would end up bei g statisticaly affected. It isn't the case ... Let's be honest for a second , we all know how much normies can FK up on easy tasks. I know this from person experience because i have built PCs for many normie friends and every time they FK up something they blame it on the hardware when 99% of the time it's their fault ... Nobody will run on the net and say it's their error , they will pretend they have done everything right , they will even manipulate the results by plugging the cable back or whatever. Nobody cares about the truth when it hurts their wallet what they care is to get a free replacement . Last but not least my personal answer to the question raised by the video ( why isn't corsair using native 12VHPWR ) would be as trivial as : cost saving. I don't believe Corsair know any better than Seasonic or other reputable vendors , they just chose the strategy to supply adapters instead of having to redesign their PSUs .

@Greenalex89

7 ай бұрын

Agreed. But I think there is enough evidence out there already for it to be a serious issue tho.

@alb9229

7 ай бұрын

@@Greenalex89 It depends what you mean by a serious issue : -If you mean in terms of potential concequences ( having something catch fire ) then yes for sure it is a serious issue . -If you mean in terms of statistical weight then i would disagree , the issue is not statistically important . We are talking about couple of hundred registered cases at most , that is including cases where user errors is obvious , over tens of thousands of sold gpus . That is less than 1% defect rate and realistically much lower if we only account for undetermined cases , meaning cases where it can't be easely proven that the cause is user error. Don't get me wrong , not saying everything is perfect with 12VHPWR . For sure many things can be improved on the connector to make it more secure / error proof but yeah it is what it is , at the end of the day you will find burned 8pin connectors on the net so error proof designs don't exist . Imo this issue would had been much more significant if Nvidia / GPU manufacturers / PSU manufactuers took no action but this is not the case. As far as im aware all customers that have suffered from this issue have been covered ( even those cases that can be easely blamed on user error ) so this is what matters the most at the end of the day .

@Greenalex89

7 ай бұрын

@@alb9229 Yes, first case. If something can catch fire or at least potentially short my whole system (causing potential data loss/ hardware destruction) then I dont care if Nvidias insurance sees it as statistically important or not. My problem is that as a customer I demand premium quality from the best product on the market. As DerBauer showed, u only have to wobble the cable very very slightly and it already shows a malfunction. And if its slightly bend sideways the pins on the outside of the cable redirect the big amount of current to the inner ones which cant handle it. If that thing is properly connected, the only user error might be that u didnt control the cable every 30 minutes if its still fits perfectly, which is just rediculous. I wouldnt want that kind of clownfiesta with a 2000+ dollar top of the line GPU. So many 4090s have been sent to repair shops, like multiple dozens every month. Considering the number of 4090s sold is not super high but such a weirdly high number of cards being send in due to a burned connector doesnt seem to be a coinsidence. It doesnt happen to other cards much at all apparently (the 7900XTX can draw even more power than a non-OC 4090 for example). All in all: Who knows..But in doubt I trust third party technicians and hardware engineers+ reviewers more than nvidia. Its not like we have scandal after scandal where hardware companies tried to cover up their malfunctioning or exploding hardware and falsly blame the customer.

@alb9229

7 ай бұрын

​@@Greenalex89 I believe you are extrapolating results from a single video that as best can be qualified as inconclusive . What der8auer video shows is that on a specific model ( ASUS 4090 Strix ) if someone pushes on the cable this can result in the GPU shutting down which would not cause the cable to burn to begin with. The video does not explore which part ( cable or pcb connector ) is responsible for that behavior since der8auer does not test multiple GPUs / cable combinations. But regardless as stated above GPU shutting down would not cause the cable to burn ( since there is no load ). Unless there are small being who live in your PC and fiddle with you cables every 30 minutes then there is no reason to control your cables every 30 minutes . You just have to control them once before you close your panels and that's it . But here is the catch most people don't do that , they often do mess with them for various reasons ( be it cable managment , adding new parts etc ) and take for granted that their cables have remained in place . Furthemore in the matter of trusting third party technicians and hardware engineers more than Nvidia , im 100% on board with you but that being said der8auer is not an electrical engineer ... on the other hand channels like HardwareBusters and GamerNexus are either electrical enginners themselves ( Aris from HWBusters is ) or have employed electical engineers ( GN did ) and have done a much more detailed/indepth analysis in regards to this issue . Both channels have attributed the issue to user error so yeah , altough trusting 3 party sources is always good , i would not put every 3 party work on the same pedestal .

@javiersantana848

7 ай бұрын

"I don't know man, i have yet to hear about a burned 12VHPWR connector from a competent source. " Because it doesn't exist lol

ChatGPT ? LOL, Im out...