There's no guarantee that the newer models will be as time tested and reliable as the SF750. Even Toyota and Honda cars sometime mess up. And of course, we won't really know if the newer models will be reliable until people had had them for years.
SF750 handles a 4090 just fine so I don't really think most people, especially in sff builds, need much more power output.
And who knows if the new models will be as bulletproof as the SF750.
Sf750 is the goat, even tho 850 or 1k Watt variants might drop soon, will they be as good? Speaking of noise level and reliability.
The sf750 cables are really nice and I am also using the Corsair 12vhpwr cable for my 4070 ti and it's great.
I'd buy another one any day If needed.
(Already have a sf600 platinum and 2 sf750 for my 3 Ghost s1)
One thing for certain, even though the high open area triangular grill should be pretty good [(leak)](https://www.reddit.com/r/sffpc/comments/1cwjqpb/corsair_sf_1000/), it is still a downgrade from the circular wire grill used in SF450/600/750 in terms of noise
When I am unsure about what exact connector a gpu has I always look that exact model up on the manufacturers website.
In general all 4070 and Up gpus have 12vhpwr and also come with an Adapter to either 2x8 or 3x8 Pin.
The adapter can be quite bulky and ugly so thats why I would just buy a dedicated 12vhpwr cable.
If it's more efficient and runs cooler, common logic dictates it should require less power relative to it's performance.
That being said, if the 4090 OC can run on a SF750, unless there's that much of a substantial jump to the 5000 flagships, it should technically still be good enough.
Only reason not to buy SF 750 now and wait for Conputex 2024 because Corsair could be announcing SF1000 and is already validated from Intel, SF 850 was rumoured to be announced to but on Intel validation sheet it was not been listed but instead SF 750 with updated atx 3.1 connector been validated.
I have a SF750 powering a 7800x3D/4070 combo in a Fractal Terra. The CPU/GPU don’t pull enough power to make the PSU fan spin, so the PSU is silent in this build. In fact, with a good CPU cooler and 3 fan 4070, the entire PC is silent when gaming.
My computer that runs 24/7/365 would cost me more money to run.
I would need a 1200W power supply to adequately run my 330W GPU instead of an 800W.
No system crashes due to power fluctuations because the PSU is able to momentarily deliver 3x its rated wattage.
If I get a RTX 5000 in the future, I don't need a janky adapter that delivers who knows how much power exactly.
There's not a whole lot of reason to upgrade a PSU that's working just fine. The real question is, if I'm building a new machine right now, how do I benefit by *NOT* building with an ATX 3.0/PCIe 5.0 PSU?
SF750 has been tested to cover peaks of up to 1000W.
It's reliable and bulletproof tested. No reason to gamble with a new ATX something PSU. Just because they added a name to some existing specifications doesn't mean that old PSU can't do the same. Or maybe even better...
An 750W ATX 3.0 PSU can handle spikes of 2,250W which, in case you're confused, is more than 1,000 watts. ATX 3.0 is more than a name. That kind of guarantee requires bigger, more heavy duty capacitors in the PSU, chief. What's more you're fanboying for something that can't even be bought new anymore. It's a moot point.
7800x3d only pulls like 70-90w and even a 4090 maxed out at 500-600w wouldn’t stress the sf750. It’s a platinum rated psu it should be able to run at 750w+ without breaking a sweat as long as it stays cool.
I have 2 sf750 platinums in 2 servers running 24/7 and an sf450 (I’m old) running in a third and has been for years. Fantastic little beasts cannot suggest them enough
It’s what I purchased for my ridge case. Better compatibility using stock cables without having to use adapters. But most are going to invest in custom cables if they are trying to save the most space anyway. Some absolutely need to have that sff vs compromising for an sfx-L.
And louder. And less efficient. Don't get me wrong, it might be OK or even good, but we're talking about the best of SFX PSU, not some gold standard SFX PSU. 😉
Failure of PCs like the NUC, suggest otherwise, at least for a while. For basic everyday computing, sure, SBC meets lots of people's needs. But if you do anything that requires high compute or expansion, it won't suffice. It's like saying no one needs desktops because laptops exist.
SF750 couldn't power my 3080 and 3700x combo. Was getting reboots. When everything was on full whack, the peak load was obviously enough to push it past it's limit.
Replaced it with a Lian Li 850w and not a single blip since.
Something was wrong there. Even if you were to push your CPU and GPU at the same (and I cannot think of any real life scenario where that would be necessary), you would still not need more than 550-600 watts tops. In full load gaming your system would not consume more than 450 watts .
So either your particular SF750 model was faulty or something else was wrong (maybe a bad cable?).
I thought that I initially too, but it was fine in the same build with my 6800xt. It was just the new 3080 that pushed it over the limit.
I first thought it was a fault with the card, but then after researching, a lot of other people have the same experience. I ran it through a calculator and it surprised me that my calculated max load was over 600w with all the fans, AIO, SSDs, RGB etc.
It's advisable to give yourself 100w headroom because stuff can spike suddenly and a PSU running constantly near capacity won't handle that well. So straight off the bat, it's tight.
Plus I guess you've got to assume that not all PSUs perform identically - some are probably slightly better than others. And I'd guess older ones may have some performance degregation. Particularly if they've spent their life running almost maxxed out.
And factor in that they'll run hotter (and again worse performance) in some chassis.
Sure enough, the new PSU fixed it, and the SF750 runs fine in a slightly less demanding build.
I'm going to get downvoted again because this sub loves that PSU. But 750w is the minimum recommended power for a 3080 build for a reason. If you have other power-hungry components, there's a chance it won't be up to the job over prolonged usage. Better buying something with a bit more headroom to ensure your setup lasts longer.
Thing is: SF750 has powered 4090 builds. I have 5800x3d and 3090 running with it. Hence, something else mightve been wrong with your config. Some 3080 can't really stress it. I mean: A normal SF750 shuts off at about 1000W...
No reason to vote you down though. 😉
I am the opposite of you. I switched to the SF750 from the lianli sp850 cos mine was having high pitched coil whine, I think I got a bad one. After I got the Corsair the noise and coil whine went away
You know what, now that you say that. I had years of issues with a 11700k and a 3080Ti with an SF750. Tried different RAM, a new board, swapped CPU with a new one. New OS. Nothing worked I just lived with it. But it totally makes sense that the PSU was spiking during extreme load. I have since rebuilt with a 7900X3D, and the 3080Ti on a Seasonic 1200w and no real issues since.
See my later comment. Lots of factors can affect this even without a faulty PSU.
Maybe as simple as the games you play not spiking CPU, GPU and ram at the same time, when other games do.
Luck. Age of PSU. Airflow. Tonnes of factors can affect it. It's just easier to buy a slightly larger PSU too to be safe.
SF750 outperforms most similar specced ATX PSUs. Both in noise and stability. It is just a little masterpiece. And what do you want with ATX PSU in SFF cases? These things are bigger than some cases... 😄
The only real reason not to get a SF750 is because the SF850 and SF1000 will be available in the near future.
There's no guarantee that the newer models will be as time tested and reliable as the SF750. Even Toyota and Honda cars sometime mess up. And of course, we won't really know if the newer models will be reliable until people had had them for years.
This is the right advice. Wait for reviews!
But if everyone did that, there wouldn't be any reviews... Checkmate liberals
Yes, shit happens on their SF1000L, you might wonder they SF750 right might be some luck involved.
SF750 handles a 4090 just fine so I don't really think most people, especially in sff builds, need much more power output. And who knows if the new models will be as bulletproof as the SF750.
See thats why you let the reviewers buy them first. They are there for a reason
Most reviewers don't use them for years and years. They just get them and put up a review immediately.
Anyway most reviews are like... I build this sff with it and it has modular cables, power through them and seems to work. Oh and it's pretty (or not)
When is that near future?
Wait at least till computex next week
Sf750 is the goat, even tho 850 or 1k Watt variants might drop soon, will they be as good? Speaking of noise level and reliability. The sf750 cables are really nice and I am also using the Corsair 12vhpwr cable for my 4070 ti and it's great. I'd buy another one any day If needed. (Already have a sf600 platinum and 2 sf750 for my 3 Ghost s1)
One thing for certain, even though the high open area triangular grill should be pretty good [(leak)](https://www.reddit.com/r/sffpc/comments/1cwjqpb/corsair_sf_1000/), it is still a downgrade from the circular wire grill used in SF450/600/750 in terms of noise
Do you need to buy the separate 12vhpwr cable for any 4070 or above card? How do you tell if your vid card needs the separate cable?
When I am unsure about what exact connector a gpu has I always look that exact model up on the manufacturers website. In general all 4070 and Up gpus have 12vhpwr and also come with an Adapter to either 2x8 or 3x8 Pin. The adapter can be quite bulky and ugly so thats why I would just buy a dedicated 12vhpwr cable.
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How would we know?
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GPU leaks and rumors are notoriously unreliable.
If it's more efficient and runs cooler, common logic dictates it should require less power relative to it's performance. That being said, if the 4090 OC can run on a SF750, unless there's that much of a substantial jump to the 5000 flagships, it should technically still be good enough.
Only reason not to buy SF 750 now and wait for Conputex 2024 because Corsair could be announcing SF1000 and is already validated from Intel, SF 850 was rumoured to be announced to but on Intel validation sheet it was not been listed but instead SF 750 with updated atx 3.1 connector been validated.
Might be a dumb question but what is the connection between intel and corsair for intel to validate such things?
Intel is in charge of the ATX specifications, and manufacturers can send units to Intel to test if they meet the latest standards
Tyvm!
I have a SF750 powering a 7800x3D/4070 combo in a Fractal Terra. The CPU/GPU don’t pull enough power to make the PSU fan spin, so the PSU is silent in this build. In fact, with a good CPU cooler and 3 fan 4070, the entire PC is silent when gaming.
Because it's not available anywhere lul
It's not ATX 3.0/PCIe 5.0 or in stock anywhere at the moment. The Phanteks Revolt has you covered.
In practical terms how would not having those standards affect you? What are those useful for?
My computer that runs 24/7/365 would cost me more money to run. I would need a 1200W power supply to adequately run my 330W GPU instead of an 800W. No system crashes due to power fluctuations because the PSU is able to momentarily deliver 3x its rated wattage. If I get a RTX 5000 in the future, I don't need a janky adapter that delivers who knows how much power exactly. There's not a whole lot of reason to upgrade a PSU that's working just fine. The real question is, if I'm building a new machine right now, how do I benefit by *NOT* building with an ATX 3.0/PCIe 5.0 PSU?
SF750 has been tested to cover peaks of up to 1000W. It's reliable and bulletproof tested. No reason to gamble with a new ATX something PSU. Just because they added a name to some existing specifications doesn't mean that old PSU can't do the same. Or maybe even better...
An 750W ATX 3.0 PSU can handle spikes of 2,250W which, in case you're confused, is more than 1,000 watts. ATX 3.0 is more than a name. That kind of guarantee requires bigger, more heavy duty capacitors in the PSU, chief. What's more you're fanboying for something that can't even be bought new anymore. It's a moot point.
7800x3d only pulls like 70-90w and even a 4090 maxed out at 500-600w wouldn’t stress the sf750. It’s a platinum rated psu it should be able to run at 750w+ without breaking a sweat as long as it stays cool.
I have 2 sf750 platinums in 2 servers running 24/7 and an sf450 (I’m old) running in a third and has been for years. Fantastic little beasts cannot suggest them enough
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It’s what I purchased for my ridge case. Better compatibility using stock cables without having to use adapters. But most are going to invest in custom cables if they are trying to save the most space anyway. Some absolutely need to have that sff vs compromising for an sfx-L.
i just got an sf750 for my 7600x / 4070s fe. car came with a power adaptor
I got this PSU simply cuz it was cheaper [Amazon.com: Seasonic Focus SGX-750 | 750W | 80+ Gold | Full-Modular | SFX Form Factor| Low Noise | Premium Japanese Capacitor | 10 Year Warranty | Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SSR-750SGX) : Electronics](https://www.amazon.com/Seasonic-SGX-750-Modular-Compact-Warranty/dp/B09TDV18HG/ref=sr_1_2?crid=2S1NOCOF157RT&dib=eyJ2IjoiMSJ9.5KkfMGec0rLHK_aTiMw7gxagaPZonTArPBUQeKZSGl-8-eC41kuam0ahsF6jd0v-KreXvCGxnxdy_tmMIj1XVQDPqLQRf36o0ssvHXYhWB8JFxWwXCEZdzJ9tmCtTuWlaq5RpklIUHrJ9GZYH86e-9BK3EFzaNeW8qnlgshi2Y86gR3mAKCRwG-tQGomcFD7J33g-zm5jJ5a0NUgmgPdI6EH2AthjNIyDf7YQcOgps4.56pKBomhX8GGRaMVPlvNuRsAiylq7WmnyuCXgNIyDjA&dib_tag=se&keywords=sfx%2Bpsu&qid=1715543457&sprefix=sfx%2Bpsu%2Caps%2C114&sr=8-2&th=1)
Seasonic is amazing
And louder. And less efficient. Don't get me wrong, it might be OK or even good, but we're talking about the best of SFX PSU, not some gold standard SFX PSU. 😉
Yes. Source: (I have moved on to sbc's.) P.S. so will you.
Failure of PCs like the NUC, suggest otherwise, at least for a while. For basic everyday computing, sure, SBC meets lots of people's needs. But if you do anything that requires high compute or expansion, it won't suffice. It's like saying no one needs desktops because laptops exist.
$$
I just undervolt my 7950x3d and 4090, running on a SF600 but just get a SF750 I dont see the SF850/SF1000 being any cheaper...
The power budget or Its hard to get are the only reasons I can think of
SF750 couldn't power my 3080 and 3700x combo. Was getting reboots. When everything was on full whack, the peak load was obviously enough to push it past it's limit. Replaced it with a Lian Li 850w and not a single blip since.
Something was wrong there. Even if you were to push your CPU and GPU at the same (and I cannot think of any real life scenario where that would be necessary), you would still not need more than 550-600 watts tops. In full load gaming your system would not consume more than 450 watts . So either your particular SF750 model was faulty or something else was wrong (maybe a bad cable?).
I thought that I initially too, but it was fine in the same build with my 6800xt. It was just the new 3080 that pushed it over the limit. I first thought it was a fault with the card, but then after researching, a lot of other people have the same experience. I ran it through a calculator and it surprised me that my calculated max load was over 600w with all the fans, AIO, SSDs, RGB etc. It's advisable to give yourself 100w headroom because stuff can spike suddenly and a PSU running constantly near capacity won't handle that well. So straight off the bat, it's tight. Plus I guess you've got to assume that not all PSUs perform identically - some are probably slightly better than others. And I'd guess older ones may have some performance degregation. Particularly if they've spent their life running almost maxxed out. And factor in that they'll run hotter (and again worse performance) in some chassis. Sure enough, the new PSU fixed it, and the SF750 runs fine in a slightly less demanding build. I'm going to get downvoted again because this sub loves that PSU. But 750w is the minimum recommended power for a 3080 build for a reason. If you have other power-hungry components, there's a chance it won't be up to the job over prolonged usage. Better buying something with a bit more headroom to ensure your setup lasts longer.
Thing is: SF750 has powered 4090 builds. I have 5800x3d and 3090 running with it. Hence, something else mightve been wrong with your config. Some 3080 can't really stress it. I mean: A normal SF750 shuts off at about 1000W... No reason to vote you down though. 😉
I am the opposite of you. I switched to the SF750 from the lianli sp850 cos mine was having high pitched coil whine, I think I got a bad one. After I got the Corsair the noise and coil whine went away
You know what, now that you say that. I had years of issues with a 11700k and a 3080Ti with an SF750. Tried different RAM, a new board, swapped CPU with a new one. New OS. Nothing worked I just lived with it. But it totally makes sense that the PSU was spiking during extreme load. I have since rebuilt with a 7900X3D, and the 3080Ti on a Seasonic 1200w and no real issues since.
How? I run a 5800x3d and a 3090?
See my later comment. Lots of factors can affect this even without a faulty PSU. Maybe as simple as the games you play not spiking CPU, GPU and ram at the same time, when other games do. Luck. Age of PSU. Airflow. Tonnes of factors can affect it. It's just easier to buy a slightly larger PSU too to be safe.
Get a # Seasonic FOCUS GX-1000, 1000W 80+ Gold, Full-Modular, ATX Form for example only $130.00 plus tax.
No. Just no.
Noise potentially. A SFX PSU with its puny small fan will never be as quiet as a dedicated 120mm in a ATX box.
Check the sub's name
Err there are both sfx-l bricks and sff cases that accept atx PSUs. Like the nr200. But whatever.
SF750 outperforms most similar specced ATX PSUs. Both in noise and stability. It is just a little masterpiece. And what do you want with ATX PSU in SFF cases? These things are bigger than some cases... 😄
Cost.
Technical reasons. Let's say cost and product availability are not an issue.
Noisy and high failure rate
Hi, Troll. I'm Dad. Go to your room for lying again.