Substitutes for Seasonic Prime TX-1000?

1Wolf

1Wolf

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The PSU that I want for my build is a Seasonic Prime TX-1000. Problem is that I'm having a hard time finding one. They are either out of stock or being scalped at large markups like GPU's and CPU's and such are these days.

So my choice is either to wait until that PSU comes into stock someplace, or to find a substitute that is just as good and at the same level. I could get by with the TX-850 but with an EVGA 3090 FTW3 and a 5950X, any overclocking, and the amount of other "stuff" I might have hooked to this PC I wanted to get just a little more cushion.

I've always just gone with Seasonic Titanium level products and they've always been awesome but I don't have alot of experience with anything that might be similar.

I'm looking for recommendations for 1000W PSU's of similar quality, reputation, and efficiency.
 
Nasgul said:
Seasonic is great but also Corsair and I'm not sure about now but eVGA made great PSUs back in 2015-16. I have all 3 brands and not a single problem, but I have more Corsair though.
Try Craigslist, you might get lucky getting a 1K PSU from Corsair or eVGA there, I've had good luck buying from there in the last 3 months so far than here. Just yesterday I bought a 16GB DDR4 LPX Corsair for $40 and I got a 1050 Super for $100 brand new, a combo for $100 (4670K+ASRock MoBo+8GB Corsair LPX), eVGA 600W B for $40.....try your luck.
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Thanks Nasgul. I'll definitely look into Corsair. I recently read elsewhere that the Corsair AX1000 is a rebranded Seasonic TX-1000 so, if thats the case, maybe I'll see if I can find one of those instead. I hadn't even thought of looking on Craigslist so maybe I'll give that a shot. Thanks for the tip. With regards to EVGA I may have to look into that as well. I seem to see alot of builds these days using EVGA PSU's. I'd never considered them in the past because, while I always prefer EVGA GPU's, their other products have caused me problems. Back in 2007 I had an EVGA motherboard for a Q6600 based system that gave me nothing but headaches and issues. I hated that thing. Just left a bad taste in my mouth but I kept using EVGA video cards because they'd always worked fantastic for me.

Thanks again Nasgul :)
 
The Corsair AX1000 is the PSU I have after I was having trouble getting my hands on a Seasonic Prime TX-850 back in August. The Corsair version is made by Seasonic and is another excellent 1000w PSU that is 80+ Titanium. They are pricey, but solid.

On this PSU, I have a 3900XT OC'd with a customer water loop, an overclocked 3090FE set to 114% power limit (around 400-410w), two M.2s, 3 SSDs, at least 11 fans, and several USB connected devices. Under a full load (Fur Mark CPU and GPU Burner running simultaneously), I don't think I have seen my system ever go above 700-725w at the wall according to my UPS. And that load is including my monitor, cable modem, and router too which are not drawing on the PSU.

The monitor is rated at consuming 90w max but typically falls between 25-40w for my usage. The modem is around 25-30w max according to its specs, and my router is around 35w max based on its specs. So knowing that, I would assume that the power supply is pulling 625-665w at the wall. After efficiency losses of around 92% (based on some curves I have looked at for the PSU at that consumption rate), it looks like my PC is sucking down around 575w-612w under heavy load.
 
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VirtualMirage said:
The Corsair AX1000 is the PSU I have after I was having trouble getting my hands on a Seasonic Prime TX-850 back in August. The Corsair version is made by Seasonic and is another excellent 1000w PSU that is 80+ Titanium. They are pricey, but solid.

On this PSU, I have a 3900XT OC'd with a customer water loop, an overclocked 3090FE set to 114% power limit (around 400-410w), two M.2s, 3 SSDs, at least 11 fans, and several USB connected devices. Under a full load (Fur Mark CPU and GPU Burner running simultaneously), I don't think I have seen my system ever go above 700-725w at the wall according to my UPS. And that load is including my monitor, cable modem, and router too which are not drawing on the PSU.

The monitor is rated at consuming 90w max but typically falls between 25-40w for my usage. The modem is around 25-30w max according to its specs, and my router is around 35w max based on its specs. So knowing that, I would assume that the power supply is pulling 625-665w at the wall. After efficiency losses of around 92% (based on some curves I have looked at for the PSU at that consumption rate), it looks like my PC is sucking down around 575w-612w under heavy load.
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Thanks for chiming in and sharing that. I'm in a similar boat right now. I actually have a Seasonic Prime TX-850 on hand but its for a different build I'm working on. I'm looking for a TX-1000 for this build. I'm sure the TX-850 would be just fine for this build but I've read enough stories the 3090 drawing alot of power, or problems with power supply compatibility, or coil whine if the wattage was too "close" that with the 5950x and 3090 and the other "stuff" that will be on this PC I felt alot better going for a 1000.

Only problem is the Corsair AX1000 is hard to find now as well. Its funny, I just went to my local microcenter today and there was only ONE 1000 watt PSU (By some brand I'd never heard of). Its hard to find a TX-1000 or AX1000 anywhere. I had some other folks recommend a new Antec 1000 watt to me that is also supposed to be a rebranded Seasonic TX-1000 and couldn't find that one either. I expected CPU's and especially GPU's to be scarce, didn't expect PSU's to be so tricky.
 
legcramp said:
It's only tricky if you guys are looking for titanium right? I see plenty of platinum rated ones :D

Like this one: https://www.newegg.com/p/1HU-0095-000N5
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While I prefer Seasonic built power supplies, back when I was shopping for a power supply in July-August 2020, even platinum PSUs were in short supply for anything above 750w for many quality built brands.

Since my machine is left on 24/7, I was really pushing for an 80+ Titanium model more so for their increased efficiency at lower loads below 20% since the machine would be sitting at a light load most of the time. 80+ Titanium certification requires the power supply to meet at least 90% efficiency at a 10% load and a PFC of .95 at 20%. Lower certified power supplies don't have a minimum efficiency requirement to meet at 10% and their PFC requirement of .90-.95 tends to be seen at a higher load of 50%.
 
MrAgmoore said:
What is the (pre-COVID) normal MSRP in USD - how much did you pay?
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I paid $251.99 in March 2020 but I don't know if the price had already gone up or not. I bought a Liquid Freezer II 360 for $119.99 in the same order.
 
The TX-850 was the one I wanted back in December for my new build but it was OOS so I got a TX-1000.
I am waiting on custom cables for it now.
 
I managed to grab a PRIME-TX 1000W just now, only 3 letf in stock. pm me if you want details if you are UK based
 
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