Seasonic PSU's are the best!

M

Moparzrule

Weaksauce
Joined
Nov 21, 2024
Messages
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I just wanted to share this, it might be a long story but it's good. A little over 2 years ago I built my son a gaming PC. A 5800x cpu and my old gtx 1070 I had kicking around. I also had a Seasonic PSU laying around, I even bought it used so it had to be at least 5 years old at this point minimum. I had upgraded my 3060 for a 4070 Ti so I gave him my old 3060 which was a decent upgrade from a 1070 but I knew for Christmas 2023 my parents were getting him a 4k monitor so that wasn't going to be enough anymore. So, I was keeping my eye out for something like a 3080 for him, when a guy listed a 3090 Ti FTW3 for $800. That was such a good deal a year ago I decided to scarf that up and give my son a crazy surprise. He practically cried when he opened the box, he was in utter shock. Anyway, he gamed on that for about 6 months but he had money burning a hole in his pocket and he wanted to upgrade to a 4090. The 3090 Ti ran so hot, it was like a furnace for his room and he used software that said sometimes the power consumption was over 600w just for the card. So, we sold the 3090 Ti for like $900 even 6 months after I bought it lol and found a 4090 for $1500. This was spring of 2024 now, and once again he had money burning a hole in his pocket and he wanted to upgrade to a 14700k build. I told him, well, your power supply is pretty old and it's only an 850w so given the CPU will consume more power than the 5800k I think you should upgrade to a 1000w PSU. So he bought a 1k seasonic, but when we went to build the the PC to my utter shock when we were pulling everything out the old power supply was only a 750w!!!! This whole time I thought it was 850, but he was going hardcore on a 3090 Ti and then a 4090 for almost a year on a 6+ year old 750w power supply!!!! I will only buy seasonic from now on, this was a true testament to their build quality for sure.
 
I have a 700 watts seasonic prime titanium psu from a few years ago that runs the system below without any niggles but there's not extreme overclocking either. We have a couple of their cheaper focus line too that have had good longevity.
 
Wade88 said:
I have a 700 watts seasonic prime titanium psu from a few years ago that runs the system below without any niggles but there's not extreme overclocking either. We have a couple of their cheaper focus line too that have had good longevity.
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Nice!
 
Seasonic-built CoolerMaster V1000 could barely handle a GTX 1080ti and couldn't handle an RTX 3080ti after 10 years. Probably had a lemon, but was too late for warranty by the time I got the RTX 3080ti- chalked up the GTX 1080ti crashes to CPU and memory overclock instability.
 
Their Gold ATX 3.1 lineup seems like total crap. And only available platinum ATX 3.1 is a nonsense 2200W unit so nothing to see there either.

Corsair wins hands down with the RM1000x if you're shopping for a 3.1 PSU.
 
Lepardi said:
Their Gold ATX 3.1 lineup seems like total crap. And only available platinum ATX 3.1 is a nonsense 2200W unit so nothing to see there either.

Corsair wins hands down with the RM1000x if you're shopping for a 3.1 PSU.
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Made by CWT. My CWT-made MSI MPG A850G has been solid so far.
 
Mad Maxx said:
I've got the Seasonic Vertex PX-1200. It's Platinum and ATX 3.1. Overkill for my rig, but I got it for a steal of a price.
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It "may or may not be" ATX 3.1. Kind of a dick move to not separate models properly like Corsair does with the new 2024 ATX 3.1 edition.

"customers may receive either 12VHPWR or 12V-2×6 cables."
"You got served with a piece of turd ATX 3.0 that will catch fire instead of proper ATX 3.1, but that's how the lottery just is, deal with it, get burned, we already got your money"
 
Lepardi said:
It "may or may not be" ATX 3.1. Kind of a dick move to not separate models properly like Corsair does with the new 2024 ATX 3.1 edition.

"customers may receive either 12VHPWR or 12V-2×6 cables."
"You got served with a piece of turd ATX 3.0 that will catch fire instead of proper ATX 3.1, but that's how the lottery just is, deal with it, get burned, we already got your money"
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Reports of PSU-side burning of the connector are extremely rare if not non-existent, I would hardly consider it a concern.

According to HWBusters, the cable is the exact same and the only change is with the header. Many 3.0 PSUs were shipping with the 12v-2x6 header later on and just weren't advertised with it yet.

Also, by most accounts, Seasonic is a very good company to deal with when a warranty claim does happen. I would not worry at all about being burned by them.
 
Tsumi said:
Seasonic-built CoolerMaster V1000 could barely handle a GTX 1080ti and couldn't handle an RTX 3080ti after 10 years. Probably had a lemon, but was too late for warranty by the time I got the RTX 3080ti- chalked up the GTX 1080ti crashes to CPU and memory overclock instability.
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After 10 years??? Dude how long do you expect a PSU to last? Cooler master is definitely going to be a ''budget'' PSU. I only buy at least gold rated PSU's.
 
Lepardi said:
Their Gold ATX 3.1 lineup seems like total crap. And only available platinum ATX 3.1 is a nonsense 2200W unit so nothing to see there either.

Corsair wins hands down with the RM1000x if you're shopping for a 3.1 PSU.
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Pardon my ignorance but what does 3.1 mean?
 
Moparzrule said:
I see. Well, so far no issues with my son's new PSU with a Focus V3 which has the older 3.0 with his RTX 4090. And I know he pushes his PC hard all the time.
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Essentially, if you made sure your 12-pin cable was fully and firmly attached at both ends and then never fucked around with moving the GPU or manhandling the cables, there aren't going to be issues.
 
Grebuloner said:
Essentially, if you made sure your 12-pin cable was fully and firmly attached at both ends and then never fucked around with moving the GPU or manhandling the cables, there aren't going to be issues.
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Yeah the cables never get touched. The side cover comes off once a month for a dusting with canned air, but that's the extent of it.
 
Moparzrule said:
After 10 years??? Dude how long do you expect a PSU to last? Cooler master is definitely going to be a ''budget'' PSU. I only buy at least gold rated PSU's.
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Did you not read? The V1000 was built by Seasonic, and for your information, was in fact Gold rated. It had a 10 year warranty and was starting to fail with the 1080ti in the warranty period. Not that 80+ ratings mean anything with regards to quality, I'll take a Seasonic silver over an HEC gold anyday.
Lepardi said:
Mainly it means a much safer pci-e cable.
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Connector (header), not cable. There have been no changes made to the cable in the transition from 12vhpwr to 12v-2x6.
 
Moparzrule said:
I just wanted to share this, it might be a long story but it's good. A little over 2 years ago I built my son a gaming PC. A 5800x cpu and my old gtx 1070 I had kicking around. I also had a Seasonic PSU laying around, I even bought it used so it had to be at least 5 years old at this point minimum. I had upgraded my 3060 for a 4070 Ti so I gave him my old 3060 which was a decent upgrade from a 1070 but I knew for Christmas 2023 my parents were getting him a 4k monitor so that wasn't going to be enough anymore. So, I was keeping my eye out for something like a 3080 for him, when a guy listed a 3090 Ti FTW3 for $800. That was such a good deal a year ago I decided to scarf that up and give my son a crazy surprise. He practically cried when he opened the box, he was in utter shock. Anyway, he gamed on that for about 6 months but he had money burning a hole in his pocket and he wanted to upgrade to a 4090. The 3090 Ti ran so hot, it was like a furnace for his room and he used software that said sometimes the power consumption was over 600w just for the card. So, we sold the 3090 Ti for like $900 even 6 months after I bought it lol and found a 4090 for $1500. This was spring of 2024 now, and once again he had money burning a hole in his pocket and he wanted to upgrade to a 14700k build. I told him, well, your power supply is pretty old and it's only an 850w so given the CPU will consume more power than the 5800k I think you should upgrade to a 1000w PSU. So he bought a 1k seasonic, but when we went to build the the PC to my utter shock when we were pulling everything out the old power supply was only a 750w!!!! This whole time I thought it was 850, but he was going hardcore on a 3090 Ti and then a 4090 for almost a year on a 6+ year old 750w power supply Insulating garage doors!!!! I will only buy seasonic from now on, this was a true testament to their build quality for sure.
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Hi, my two active pc both use Seasonic GC 550 80+ Gold. The psu has been working fine so far.

Now, I'm planning to revive another broken pc at home. But the problem is, the shop where I got the Seasonic 550 have run out of stock..

my question is.. are all Seasonic good? If yes, then I'll just get whatever Seasonic is available in the shop that is 400w and above capacity.
 
stevenlee said:
Hi, my two active pc both use Seasonic GC 550 80+ Gold. The psu has been working fine so far.

Now, I'm planning to revive another broken pc at home. But the problem is, the shop where I got the Seasonic 550 have run out of stock..

my question is.. are all Seasonic good? If yes, then I'll just get whatever Seasonic is available in the shop that is 400w and above capacity.
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I would say as long as it's 80+ gold or better you can't go wrong.
 
I'm a Seasonic faithful but apparently my 1 year old 500w PRIME FANLESS PX unit is bad.

Machine was randomly rebooting on idle/low load > swapped PSU for cheap bronze Seasonic and it stopped :(

Under warranty for another 12 years, but still sad for a 200€ product, RMA time.
 
7 out of 8 of my for-work computers have Seasonic PSU's: four Focus+, a G series, a Core GM, and a 600w Titanium Fanless. They've all run flawlessly for years. I bought all but the Fanless used.

The outlier is a Corsair RMx which is an excellent unit in its own right.
 
pitingres said:
7 out of 8 of my for-work computers have Seasonic PSU's: four Focus+, a G series, a Core GM, and a 600w Titanium Fanless. They've all run flawlessly for years. I bought all but the Fanless used.

The outlier is a Corsair RMx which is an excellent unit in its own right.
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Nice, thanks for sharing. I used Corsair before I went to Seasonic. Never had issues with the Corsairs but never pushed they as hard as the Seasonics.
 
In early 2021 I bought a Prime GX-750. Nice PSU. Cannot handle my tuned 5900X and 3070Ti, it will shut down so hard you gotta trip the switch. It is fine with my 58X3D and 5600X though. Same components run fine with EVGA 750.. shit model.

My Vertex GX-1000 has been cock solid, love it. No problems at all.
 
freeagentt said:
In early 2021 I bought a Prime GX-750. Nice PSU. Cannot handle my tuned 5900X and 3070Ti, it will shut down so hard you gotta trip the switch. It is fine with my 58X3D and 5600X though. Same components run fine with EVGA 750.. shit model.

My Vertex GX-1000 has been cock solid, love it. No problems at all.
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Strange. I know a 5900x might use like 100w more than a 5800x but a 3090 Ti uses over 200w more than a 3070 Ti so maybe your PSU was a bit defective or something. I mean mine was not the same model, mine is a Focus, but the GX is suppose to be higher end so definitely seems odd.
 
My current main desktop is using an 850W Seasonic-built Corsair PSU that I bought in Summer 2010. This is the 3rd PC it's been used for. I'm gonna replace it with the next main desktop I build, but it has been putting in work nearly every day for almost 15 years now, and so far hasn't given me any issues. It's handled everything I've thrown at it, including the 420W RTX 3090 that's in the PC now. Just so long as I keep the PC case's PSU fan filter clean. The PSU doesn't like not getting enough airflow.

Seasonic was doing 10-year warranties before the other copycat companies. Also to my knowledge Seasonic is the only PSU manufacturer that sends reviewers actual retail units that the consumer can buy, not hand-picked test units. There's quite a few good PSU companies out there, but generally I stick to Seasonic cuz I don't see the point of going with someone else. No company is perfect, but I think overall Seasonic has had the best track record.
 
freeagentt said:
In early 2021 I bought a Prime GX-750. Nice PSU. Cannot handle my tuned 5900X and 3070Ti, it will shut down so hard you gotta trip the switch. It is fine with my 58X3D and 5600X though. Same components run fine with EVGA 750.. shit model.

My Vertex GX-1000 has been cock solid, love it. No problems at all.
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There was a known problem with Seasonic PSUs and RTX30s where the stupid-high power spikes ("excursions" if you're nasty) would trip the protection circuits. Seasonic made some quiet update that mostly fixed their side of the issue, and the RTX 40s got the spikes under control.
 
Grebuloner said:
There was a known problem with Seasonic PSUs and RTX30s where the stupid-high power spikes ("excursions" if you're nasty) would trip the protection circuits. Seasonic made some quiet update that mostly fixed their side of the issue, and the RTX 40s got the spikes under control.
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Hmm, never heard about that (but I've been out of the computer hobby stuff for 7 years or so). Was it just Seasonic, or other PSU manufacturers as well?
 
El_Capitan said:
Hmm, never heard about that (but I've been out of the computer hobby stuff for 7 years or so). Was it just Seasonic, or other PSU manufacturers as well?
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I think it was primarily Seasonic as the big manufacturer and a surprise given their leadership in the field, though with the root cause being an aggressive no-delay OCP, which ordinarily is great system protection, I can see why Nvidia's carelessness with power spikes (even if it was a millisecond or two) caused a failure. I never heard of any other (reputable) OEMs having problems with their units, doesn't mean there weren't, and I can't remember if the Seasonic rebrand/custom design companies (Asus, Corsair, EVGA, etc.) had the same problem with theirs.
 
Moparzrule said:
I know a 5900x might use like 100w more
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Screenshot 2025-01-06 201459.jpg


It can use more.
 
freeagentt said:
View attachment 702663

It can use more.
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So I'm seeming 263w max power draw there. the 5800x uses 160w in stress test at stock, so that's literally and virtually exactly what I said lol.....about 100w more. The 3090 Ti smashes the 3070 Ti when it comes to power consumption, and my son had the ultra FTW3 which his software sometimes hit 600w power usage on it.

1736456639429.png
 
Moparzrule said:
So I'm seeming 263w max power draw there. the 5800x uses 160w in stress test at stock, so that's literally and virtually exactly what I said lol.....about 100w more.
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Except in my photo it is showing just my CPU doing that power, at the wall system is doing over 450w. In the photo you posted, that is total system power.. stock max is 143w, and in order to achieve that, you need to run something heavy like LInpack Xtreme.

Edit:

Which would explain why their system power is 181w for the 5900X in their photo.
 
Grebuloner said:
I think it was primarily Seasonic as the big manufacturer and a surprise given their leadership in the field, though with the root cause being an aggressive no-delay OCP, which ordinarily is great system protection, I can see why Nvidia's carelessness with power spikes (even if it was a millisecond or two) caused a failure. I never heard of any other (reputable) OEMs having problems with their units, doesn't mean there weren't, and I can't remember if the Seasonic rebrand/custom design companies (Asus, Corsair, EVGA, etc.) had the same problem with theirs.
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Pretty much this, Seasonic got a bit of a black eye because of it. It's also why the new ATX 3.0 standard was pushed through, to ensure PSUs can handle the spikes.

My Seasonic-built Cooler Master V1000 would shut down almost instantly with a 3080ti when loading into a game unless I capped the core and power levels, making it less likely to spike. It's why I made sure the next PSU I got was a solid ATX 3.0 platform and Seasonic offerings were slim at the time.
 
freeagentt said:
Except in my photo it is showing just my CPU doing that power, at the wall system is doing over 450w. In the photo you posted, that is total system power.. stock max is 143w, and in order to achieve that, you need to run something heavy like LInpack Xtreme.

Edit:

Which would explain why their system power is 181w for the 5900X in their photo.
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My bad on that I missed it was for whole system.......but regardless, the 3090 Ti alone was pulling more wattage than your 5900x and 3070 Ti combined in my sons system and the Focus 750w handled it fine.
 
Moparzrule said:
My bad on that I missed it was for whole system.......but regardless, the 3090 Ti alone was pulling more wattage than your 5900x and 3070 Ti combined in my sons system and the Focus 750w handled it fine.
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Yeah no problems when I run my 5900X at stock either, but I dont.
 
freeagentt said:
Yeah no problems when I run my 5900X at stock either, but I dont.
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What I'm saying is, a 5800x and a 3090 Ti is pulling significantly more wattage than an overclocked 5900x and 3070 Ti. Just to use round numbers, 250w on the CPU and 300w on the GPU (maybe 350w if you had the 3070 TI overclocked too), and in my sons rig was 130-140w cpu and 600w GPU. He was running 100+ more watts than your setup with no issues on the focus 750w.
 
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