Sunday, August 23rd 2020
Picture Proof of NVIDIA 12-pin Power Connector: Seasonic Ships Modular Adapters
Leading PSU manufacturer Seasonic is shipping a modular cable that confirms NVIDIA's proprietary 12-pin graphics card power connector for its upcoming GeForce "Ampere" graphics cards. Back in July we did an in-depth analysis of the connector, backed by confirmation from various industry sources about the connector being real, being a proprietary design by NVIDIA (and not a PCI-SIG or ATX standard), and its possible power output limit being 600 W. Seasonic's adapter converts two versatile 12 V 8-pin PSU-side connectors into one 12-pin connector, which tends to back the power output information. On typical Seasonic modular PSUs, cables are included to convert one PSU-side 8-pin 12 V connector into two 6+2 pin PCIe power connectors along a single cable. HardwareLuxxx.de reports that it's already received the Seasonic adapter in preparation for its "Ampere" Founders Edition reviews.
NVIDIA leaker with an extremely high hit-rate, kopite7kimi, however predicts that the 12-pin connector was designed by NVIDIA exclusively for its Founders Edition (reference design) graphics cards, and that custom-design cards may stick to industry-standard PCIe power connectors. We recently spied a custom-design RTX 3090 PCB, and it's shown featuring three 8-pin PCIe power connectors. This seems to be additional proof that a single 12-pin connector is a really fat straw for 12 V juice. The label on the box for the Seasonic cable reads that it's recommended to use the cable with PSUs with at least 850 W output (which could very well be a system requirement for the RTX 3090). Earlier this weekend, pictures of the RTX 3090 Founders Edition surfaced, and it is huge.
Source:
VideoCardz
NVIDIA leaker with an extremely high hit-rate, kopite7kimi, however predicts that the 12-pin connector was designed by NVIDIA exclusively for its Founders Edition (reference design) graphics cards, and that custom-design cards may stick to industry-standard PCIe power connectors. We recently spied a custom-design RTX 3090 PCB, and it's shown featuring three 8-pin PCIe power connectors. This seems to be additional proof that a single 12-pin connector is a really fat straw for 12 V juice. The label on the box for the Seasonic cable reads that it's recommended to use the cable with PSUs with at least 850 W output (which could very well be a system requirement for the RTX 3090). Earlier this weekend, pictures of the RTX 3090 Founders Edition surfaced, and it is huge.
119 Comments on Picture Proof of NVIDIA 12-pin Power Connector: Seasonic Ships Modular Adapters
How presumptuous you are to decide that my AC which is to all the specs for the house size and is not broken should be replaced. I didn’t complain, I merely told you that it can be felt in the summer months.
If it's that important to you, go write a complaint to Nvidia lol. Maybe they'll write you a letter back apologizing that their GPUs don't cool your room yet. Your expectations are way too overblown. Do you want them to make this GPU 50% slower just so your room stays cooler? I mean, what kind of point are you even trying to make?
Or why blow 300 extra watts for rtrt that many people find unappealing? Or not even noticable?
You are the one who assumed it meant more than it did, or that I was complaining and presumed to tell me what to do with my house.
Have some perspective, my friend. The world is a diverse place and I'd be careful about judging others unless you want to be judged yourself.
YPMD
(Your Priorities may differ)
2010: A you can fry an egg on [GeForce 400 series], ha ha ha
2013 - 2020: (29x - Vega) heat doesn't matter
2020 - Ah ya can fry and egg on [card that has not been released]
On that note, heat does not matter to me MUCH (being my computer lives in a data closet). But it's not an encouraging development either.
Brute force wastefulness is not a good ideal.
"Some video cards come with the 8 pin PCI express connector to support higher wattage than the 6 pin PCI Express connectors. It's okay to plug a 6 pin PCI Express power cable into an 8 pin PCI Express connector. It's designed to work that way but will be limited to the lower wattage provided by the 6 pin version of the cable. The 6 pin cable only fits into one end of the 8 pin connector so you can't insert it incorrectly but you can sometimes force the 6 pin cable in the wrong way if you try hard enough. Video cards can sense whether you have plugged a 6 pin or 8 pin cable into an 8 pin connector so the video card can impose some kind of restriction when running with only a 6 pin power cable. Some cards will refuse to run with only a 6 pin cable in an 8 pin socket. Others will work with a 6 pin cable at normal speeds but will not allow overclocking. Check the video card documentation to get the rules. But if you don't have any other information then just assume that if your video card has an 8 pin connector then you must plug in an 8 pin cable. "
"The PCI Express 2.0 specification released in January 2007 added an 8 pin PCI Express power cable. It's just an 8 pin version of the 6 Pin PCI Express connector power cable. Both are primarily used to provide supplemental power to video cards. The older 6 pin version officially provides a maximum of 75 watts (although unofficially it can usually provide much more) whereas the new 8 pin version provides a maximum of 150 watts. It is very easy to confuse the 8 pin version with the very similar-looking EPS 8 pin power cable "
That sense cable, when used, is to detect which cable is connected and to limit power as described above.
There's good info here on the subject
electronics.stackexchange.com/questions/465726/what-are-sense-pins-in-8-pin-pci-express-power-plug
Another thing worth looking at is this video :
Around the 18 minute mark, they talk about the RX 480 ... and what happened with that card was that with the 6 pin connector, power delivery was limited to 75 watts ... Because the card was drawing more than 150 watts .... the extra wattage was not being drawn thru the cable, it was pulled from the PCI slot ... which they explain is a very bad thing. So it's not a matter so much if the cable can stand it w/o melting, it's whether the PSU will deliver more than 75 watts. They show how the 6 pin 480 causes way more than 75 watts thru the slot ... and than later, with an 8 pin connection more powerful cards and bigger loads don't do that.
So yes a 6 pin cable isn't going to melt under normal circumstances. However ...
Your PSU may not deliver 150 watts to the card ... it may be limited to 75 watts and this will impact performance
You could wind up in a situation like with the 480.... whereby the MoBo and / or card vendor did not provide adequate protections and the 750 watt limit of the card slot could be exceeded.
Advice ?
1. Don't throw away your power cables
2. If you do spend the $4 on a OEM replacement cable
A mod told me this was REALLY NAUGHTY: Welcome to AMDsuperTechpowerUp forums. You access may be denied.
There's a really weird "Nvidia bad" vibe going around lately. And AMD hasn't even leaked anything yet... How does that even make sense? It's like some people just don't want 4K gaming and want to live in the past. Look, I just want 4K gaming to come as soon as possible, but hey that's just me. This card has a prohibitive price for a reason. It's about pushing the envelope and about pushing 4K gaming, not about saving your electricity bill or the planet (although the price will be in its favor). It's not about keeping your room cool, either. I just hope people can understand that. Ok, if it's really that fast I'll think about replacing my heating system with a 3090. By the way, that joke is hilarious, let's never stop making this joke. At least I thought it was a joke all these years, but now I'm starting to take this whole sausage grill thing seriously.
Some day, I'll escape. You could certainly manage it with some clever engineering but I'd rather just use it as a gpu..
There is available a special current (clamp probe) for oscilloscope, this having the necessary bandwidth of 500 kHz, this be able to solely measure amperes draw at the side of the wires.
Either way , heat and lots of amperes, this will puzzle more all those planning 4K gaming.
Don't go looking for performance numbers or something to crow about for or against ... but provides a good tool for a beginner to begin understanding how heat and other design considerations are addressed....
Thermal Design - 0.00 ==> 3:00
Mechanical Design - 3:00 ==> 4:45 (Cooling System Hold Down)
Power Handling - 4;46 ==> 6:05 (Crosstalk, PCB)
Power Connector - 6:06 ==> 6:25
Form and Function Blah Blah 6;26 ==> end You should. This site is one that half of youtube hosts use to parrot "their findings
en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect