PSU recommendation for RTX 5090

[Sol_Badguy]

I've considered it but it's too unwieldy, running 4 8-pin cables to the adapter with this open bench setup, I'm concerned the sheer weight of the cables could actually cause the connection to come loose. Not to mention it would look like it was jury rigged in here. Pitifully bad.

Yeah you're probably right. That many cables would require anchoring them to something.

The cable doesn't get unusually hot, but I made sure that contact was perfect when I installed it.

All the way :

 

[Carsomyr]

Ok guys here's a big picture dump (sorry was on my android phone and didn't feel like copy pasting for ever with my thumbs)

Itd a bunch of screenshots of the stuff jonnyguru said when we had the lengthy conversation about PSUs.

 

[dark_globe]

Ok guys here's a big picture dump (sorry was on my android phone and didn't feel like copy pasting for ever with my thumbs)

Itd a bunch of screenshots of the stuff jonnyguru said when we had the lengthy conversation about PSUs.

seems like jonny deems almost every (presumably) reputable psu out there to be a dumbster fire these days
to the point where there is almost nothing left to buy .
it would be much easier to ask him to make a list of maybe 3 or 4 1000/1200w units that he thinks are actually "just OK" in his book

it seems to me he is being a little too harsh , especially when it comes to seasonic and asus (since seasonic is making a lot of their units as well)
asus aura for example is actually a pretty decent power supply and it has been around for a while now .
if he was to review it back in the day on his website i find it hard to believe he would rate it below 8.0 actually .

(so i don´t know maybe he has some old beef with seasonic?) .

 

[Carsomyr]

seems like jonny deems almost every (presumably) reputable psu out there to be a dumbster fire
it would be much easier to ask him to make a list of maybe 3 or 4 1000/1200w units that he thinks are actually "just OK" in his book

i think he is being too harsh , especially when it comes to seasonic and asus (since seasonic is making a lot of their units)
(i don´t know maybe he has some old beef with them?) .

I wouldn't know. He was clear that:
NZXT, XPG, CORSAIR, MSI MEG, SUPER FLOWER, BE QUIET all have good PSUs

And obviously I don't consider just him in my analysis of things, but yeah, I'll trust jonnyguru over a lot of other people. He's not failed me in the past

 

[dark_globe]

I wouldn't know. He was clear that:
NZXT, XPG, CORSAIR, MSI MEG, SUPER FLOWER, BE QUIET all have good PSUs

And obviously I don't consider just him in my analysis of things, but yeah, I'll trust jonnyguru over a lot of other people. He's not failed me in the past

be quiet can be very iffy as well with some of their units ...
it depends on which models are we talking about because they have a big portfolio of various models ranging from tier A+ to garbage ...
(also the good ones are usually way too overpriced)

XPG core reactors II , MEG units , and most of good corsairs and NZXT units are made by CWT
so that makes sense since it is probably the best OEM out there right now .
that being said even CWT is not immune to produce a mediocre products (especially in the lower end of the spectrum where they need to cut the production cost)

super flower is a mixed bag of units and you have to know what you are buying (same as with be quiet units) ,
but if not for the issue with low °C cables VII XG are actually decent units .

personally i would probably get a corsair unit these days and call it a day ...

 

[anyabaker]

I think NVIDIA RTX 5090 hasn't officially launched as of now. Better to wait for the official launch.

 

[dirtyferret]

that being said even CWT is not immune to produce a mediocre

they produce for the manufacturing cost given to them by the brand

 

[phanbuey]

Companies could make some serious money if they came up with a connctor with a sensor that could trip the machine if the load was causing the cable to get hot.

No one wants to melt their 50xx 40xx cards those cables would sell like hotcakes.

 

[dark_globe]

they produce for the manufacturing cost given to them by the brand

of course ...
i´m just saying that not everything they make is gold .
but in the higher end they produce great units .

 

[Carsomyr]

Companies could make some serious money if they came up with a connctor with a sensor that could trip the machine if the load was causing the cable to get hot.

No one wants to melt their 50xx 40xx cards those cables would sell like hotcakes.

Yup.

The big challenge would lie in the fact that every psu back has different pinnout configuration (a lot of them are similar) but you would need a sort of universal solution for that to work

 

[Sol_Badguy]

Ok guys here's a big picture dump (sorry was on my android phone and didn't feel like copy pasting for ever with my thumbs)

Itd a bunch of screenshots of the stuff jonnyguru said when we had the lengthy conversation about PSUs.

Very helpful, much obliged.
Key aspects I've noticed:
- the use of the "Kraken" is not recommended. I saw a similar comment by Aris in the YT video I posted at the top of this page. Ok then no more squid on the menu.
- the missing pins are not a problem. Aris too said it in the comment section for the 1000 XG (referring to a question posted below).

Super Flower Leadex VII Gold 1000W (SF-1000F14XG) PSU Review - Hardware Busters

Hardware Busters - Super Flower Leadex VII Gold 1000W (SF-1000F14XG) PSU Review - PSUs

hwbusters.com

They're sense pins that maybe sense something or not, whatever, not an issue apparently.
- the temp rating is a problem. SF dropped the ball with this one. Basically good PSU mediocre cables. In my noob opinion I would say that an 80°C cable is better to be considered a 450W cable and be used on 5080 and downward. Not on 4090 and definitely not on 5090. If the cable would've been comparable to others on the market you would've scored a very nice PSU. Shame.
- 2x8 pin is better. That means that hunting for a PSU with a native 12V-2x6 (ATX 3.1) is not a priority and moreso not even desirable. The PSU itself just needs to be good. The problem is that if its own cable is crappy (like the SF 1300 XG) you need to use a cable from a different mfg which might be problematic or not. So then the PSU has to have good cables which narrows down the list considerably.

/////

I can't make out what terminals are used on the 12VHPWR plug from your pics at posts #17 and #41. Do you remember what type they were?
I kind of want to say that they look like a single split, but regarding what's in the hole I'm not sure.

I've got Super Flower Leadex VII Gold 1000W (SF-1000F14XG) and I'm happy with cables, I like how I can make them almost flat , I did not like the sleeved cables from Seasonic in my focus gold 550W.

Well you have the same cable.
Would you please take one for the team and verify? Sorry to ask. Thank you.

 

[lepudruk]

I found a good deal on the Super Flower Leadex VII XG 1300W Power Supply, ATX 3.1 Compatible.

Should I pull the trigger or should I aim higher?
For PSUs Like the Seasonic PRIME TX-1600 Noctua Edition?

Aside from the fact that the super flower doesn't have braided cables... Are there other major issues to consider?

I know it's been some time since your post but if I could make a suggestion, I would advise you to consider new Asrock PG-1300G PSU. It was designed specially for RTX 5000 series and is (AFAIK) the only PSU that has a built-in auto power-off feature triggered by temp sensor sitting on a power connector (triggers at 110 C degrees). 5090 is not a cheap toy (for most of the people) and using it is like playing russian roulette, you never know when it's gonna blow.. So, better safe then sorry. Just my 2c.

Here's some info about it:

And a test by Aris from HWbusters:

 

[Carsomyr]

I know it's been some time since your post but if I could make a suggestion, I would advise you to consider new Asrock PG-1300G PSU. It was designed specially for RTX 5000 series and is (AFAIK) the only PSU that has a built-in auto power-off feature triggered by temp sensor sitting on a power connector (triggers at 110 C degrees). 5090 is not a cheap toy (for most of the people) and using it is like playing russian roulette, you never know when it's gonna blow.. So, better safe then sorry. Just my 2c.

Here's some info about it:

And a test by Aris from HWbusters:

indeed its a nice initiative from FSP/asrock
but it seems in general the asrock power supplies aren't amazing. they're decent for sure
and that safety feature is better than nothing for sure.
I'm just "not seduced" yet.

that being said, asrock has impressed me on the motherboard side a few years back, it seems as though they're headed in the right direction. They seem to care about the consumer. Their oem parts makers might not be though, but asrock definetly seems to have the right vision in mind. that being said:

 

[Frick]

seems like jonny deems almost every (presumably) reputable psu out there to be a dumbster fire these days
to the point where there is almost nothing left to buy .

Not really. He said FSP is a money first company or whatever, that doesn't really mean anything. When jonnyguru.com was a thing FPS was known to make stuff that was within spec and not much else, unless they either made stuff for someone else or they wanted to shoot a bit higher under their own brand. The specs are still pretty wide, so depending on how much you pay it's fine. Which those reviews pointed out. Also Seasonic isn't The Shit anymore, but that isn't exactly news, but they still make functional stuff. Also DO remember that the guy is working for Corsair. That doesn't mean he's not impartial, but (and I'm speaking from experience here) if you work with a company it's pretty likely that you'll see things from their point of view. Add to this

I wouldn't know. He was clear that:
NZXT, XPG, CORSAIR, MSI MEG, SUPER FLOWER, BE QUIET all have good PSUs

this all requires some definition of "good". Within spec? Or are we talking Above and Beyond stuff? Is he saying I can spend €700 or whatever on a 2kW Seasonic PSU with a 12 year warranty and it's a bad PSU? Like bad as in a €50 2kW UnicornWallGreatness or Whatever PSU from ebay? I know that is not what he means, and this is also why tier lists and the binary good/bad mindset is bad.

Also @Space Lynx, @jonnyGURU is throwing dirt at you mate.

that being said, asrock has impressed me on the motherboard side a few years back, it seems as though they're headed in the right direction.

Someone doesn't remember the ULi days. The Dual-Sata2 was awesome.

 

[dark_globe]

Not really. He said FSP is a money first company or whatever, that doesn't really mean anything. When jonnyguru.com was a thing FPS was known to make stuff that was within spec and not much else, unless they either made stuff for someone else or they wanted to shoot a bit higher under their own brand. The specs are still pretty wide, so depending on how much you pay it's fine. Which those reviews pointed out.

yeah i´m familiar with his former website and his old reviews (i have red them all)
he was THE GUY back in the day .
FSP has always been kinda like a gateway (point of entry) into the realm of mediocre (OK) stuff and away from no name "fire hazard" units .
so nothing new there .
in the past few years they have produced some excelent units though and they are also making a lot of stuff for be quiet .

Also Seasonic isn't The Shit anymore, but that isn't exactly news

yeah seasonic has been dropping the ball for a while now .
they became a mixed bag just like any other brand -
they still have some excelent units but also some units you better steer clear of .
back in the day you could have just grab an old S12II-620 for $60 and you could be sure it has jap. caps and will run reliably for a decade ...
(the only issue with those old seasonic units was those ADDA fans and the occasional coil whine)

Also DO remember that the guy is working for Corsair. That doesn't mean he's not impartial, but (and I'm speaking from experience here) if you work with a company it's pretty likely that you'll see things from their point of view. Add to this

yeah that make sense ,
that´s why i´m taking his comments towards the seasonic and asus with a grain of salt .
corsair doesn´t exactly produce great units at the lower end of the spectrum either
and they had their fair share of blunders in the past as well ...
for example some of us remember that the entire builder series CX V2 line up was a dumbster fire back in the day ...

 

[Kwadratowicz]

Would you please take one for the team and verify? Sorry to ask. Thank you.

Sorry I was out, and the topic has to much talk, could You specify what to verify?
Ps I'm adding the pictures of the cable itself.

The cables are "E339443 (strange sign) AWM STYLE 2468 16AWG 80C 300V VW-1"
Ps just to clarify, 16awg (1.31 mm2) is better than 18awg (0.823 mm2) and 20 awg (0.519 mm2).
Edit Seasonic focus plus gold 550W is using 18AWG 80C cables for gpu with old 8pin connector, old dell xps 630i psu is using 16 AWG 80C for 8 pin connector.
I think 80C is standard for cables.
Ps The best thing i bought for pc is this psu, not beacouse it is good or bad, it's just it was fastest purchase, I've learned about the super flower brand on Sunday someone from forum was having it, and on Monday i was searching for the psu, I've found bequiet that was ok, but friend said this is good, and here is review, price was the same as 850W bequiet, and here I've had 1kW psu, I've bought it, and it works, 9070 xt is working well with it , (sometimes we think to much, we wanna the best, where the best is no longer available in my opinion )

 

[Sol_Badguy]

Sorry I was out, and the topic has to much talk, could You specify what to verify?

The pin receptacles inside the 12 slots of the 12VHPWR plug.
You probably can't take good hi-res photos so that we can see what's inside because you might need some fancy camera/lens, but if you can see with your own eyes what's in there just tell us.

What I can make out is that it's a single split?
See split types here, Astron vs NTK:

12VHPWR adapter for NVIDIA’s GeForce RTX 4090 - Two manufacturers, contact problems, bending radii and the human factor | igor´sLAB

The 12VHPWR adapter for the GeForce RTX 4090 is unfortunately already a kind of running gag and so the topic is meanwhile beaten by all more or less well-informed media.

www.igorslab.de

But I can't tell what's in the hole. Maybe you can see if there are 3 dimples on the sides or 4 springs.

The 12VHPWR connection finally gets an explicit recommendation for plug contacts in the standardization | igor´sLAB

It was long overdue, but is now finally official. In revision 2.01 of the ATX version 3.0 (Multi Rail Desktop Platform Power Supply) from February 2023, Intel has finally had the design of the…

www.igorslab.de

Thank you!

/////

I just realized you have a Gigabyte 9070 XT, meaning you don't use that cable and thus you don't need to unplug it from the system.

 

[Kwadratowicz]

Is in European Union needed to send back with everything stuff with guarantee?, cause if not I will just disassembly this cable , I don't think I would need it for anythig ^^
Or if there is someone who has knowledge and wanna to experiment on it, I could send it in EU .

I think it is second design, but i need more light to check it, but it looks like the v cut in the connector is there.

 

[Sol_Badguy]

Is in European Union needed to send back with everything stuff with guarantee?, cause if not I will just disassembly this cable , I don't think I would need it for anythig ^^
Or if there is someone who has knowledge and wanna to experiment on it, I could send it in EU .

No, why take it apart?
Is it not visible when looking inside, it should be.
You should be able to see either 3 dimples on the sides (laterally) or 4 leaf springs on all sides.
And the vertical slits surely must be visible either one or two, I am almost sure it's one.

 

[Kwadratowicz]

It's to small for me to see it right now, I will check it tomorrow with normal light , and now i'm don't know anymore, it is really hard to look what is inside if I don't know how exactly the difference is looking.
I can take it apart, cause I won't be using it, and if it could be needed I can buy new one later .
but for now I'm thinking that I don't need it.

 

[Sol_Badguy]

https://www.reddit.com/r/nvidia/comments/yexxqp/16_pin_connector_melted_in_4090_tuf_asus

This guy had one with 2 slits and dimples, and those can be seen in the photo, they are quite distinct. If yours doesn't look like that then it's spring type.

But please don't damage it, who knows maybe in time you will upgrade with an nVidia card.
No rush, when you have the time to look in natural light, maybe if you have a magnifying glass?
Again thank you kindly for the help.

 

[Carsomyr]

Not really. He said FSP is a money first company or whatever, that doesn't really mean anything. When jonnyguru.com was a thing FPS was known to make stuff that was within spec and not much else, unless they either made stuff for someone else or they wanted to shoot a bit higher under their own brand. The specs are still pretty wide, so depending on how much you pay it's fine. Which those reviews pointed out. Also Seasonic isn't The Shit anymore, but that isn't exactly news, but they still make functional stuff. Also DO remember that the guy is working for Corsair. That doesn't mean he's not impartial, but (and I'm speaking from experience here) if you work with a company it's pretty likely that you'll see things from their point of view. Add to this


this all requires some definition of "good". Within spec? Or are we talking Above and Beyond stuff? Is he saying I can spend €700 or whatever on a 2kW Seasonic PSU with a 12 year warranty and it's a bad PSU? Like bad as in a €50 2kW UnicornWallGreatness or Whatever PSU from ebay? I know that is not what he means, and this is also why tier lists and the binary good/bad mindset is bad.

Also @Space Lynx, @jonnyGURU is throwing dirt at you mate.



Someone doesn't remember the ULi days. The Dual-Sata2 was awesome.

I didn't name the specific PSUs he mentionned. Just the brands

But yeah, specifically the nzxt c1500 and c1200 I linked to him seemed to have his approval.

He acted the same when super flower Leadex vii XG 1300w and xp were mentionned also he was surprised to see the 80c rated cable because its not what super flower is known for...

No I didn't bother to list the exact PSUs... Obviously inside a single brand there can be horrendous PSUs and really good ones too.

We all have our opinions and biases for sure, but like I said, I trust the guy... He probably has his quirks like any human being, but he's earned my trust over the years

 

[Sunny and 75]

MSI MPG A1250GS

Yep, that's the one

(so i don´t know maybe he has some old beef with seasonic?) .

Could very well be the case

I think NVIDIA RTX 5090 hasn't officially launched as of now. Better to wait for the official launch.

Right

you never know when it's gonna blow.. So, better safe then sorry.

The path to take

Is he saying I can spend €700 or whatever on a 2kW Seasonic PSU with a 12 year warranty and it's a bad PSU? Like bad as in a €50 2kW UnicornWallGreatness or Whatever PSU from ebay? I know that is not what he means, and this is also why tier lists and the binary good/bad mindset is bad.

Sure

that´s why i´m taking his comments towards the seasonic and asus with a grain of salt .

Noted

We all have our opinions and biases for sure, but like I said, I trust the guy... He probably has his quirks like any human being, but he's earned my trust over the years

 

[uco73]

Superflower is one of the four basic PSU's (Delta, Fortron, Superflower and Seasonic). I'm using one of them only and only.

 

[Kwadratowicz]

Ok, after looking at the connector from superflower, the psu side has dimples and there are 2 groves,
and the gpu side has 1 groove and i don't see dimples, but it is small enough that i could make mistake, but the front has that small triangular cutout so it looks like second iteration.
I've shown the grooves (slits) that I talk about at this.


(T-40 is for focus )
I don't see dimples inside the connector on the gpu side.
ps thanks, cause of this thread now I know how to make photos of stuff for closeups
Edit: And I thought I could destroy something again xD and now it is not needed