Question Am I pushing it with 750W and RTX 4090

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edo101

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Jul 16, 2018
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Hi, I have a 24/7 OC 10850K at 5Ghz and I just picked up an Asus TUF 4090 OC. I don't think I plan to overclock the 4090 but I guess maybe in 2 years if it starts struggling at 4K I would? Anyways my rig also has a ton of HDDs and SSDs. I see there is a sale for a 1200W Corsair RM1200e PSU in Newegg for $169. An 850W of the same line is $139, only 30 bucks cheaper.

I was wondering if am I pushing the 750W PSU too hard with my current build? I have heard if PSUs are pushed, they can briick your entire system which means building a whole new computer? Should I close my eyes and buy the 1200W PSU or is there cheaper alternative that will provide good power and future proofing? I also would hate to rewire the system lol.
 
Eximo said:
RM1000e and RM1200e are okay, but not great units. I would pick from these.

https://pcpartpicker.com/product/ZD...ly-modular-atx-power-supply-mpg-a1000g-pcie-5

https://pcpartpicker.com/product/4v...-modular-atx-power-supply-ps-tpd-1050fnfagu-l

https://pcpartpicker.com/product/ff...-modular-atx-power-supply-ps-tpd-1200fnfagu-l
Click to expand...
Hi, I have been out of the PSU world for a while. Is Thermaltake a reputable brand when it comes to PSUs? Back in 2016 when I got my PSU, the top brands were Corsair and EVGA.
 
edo101 said:
Hi, I have been out of the PSU world for a while. Is Thermaltake a reputable brand when it comes to PSUs? Back in 2016 when I got my PSU, the top brands were Corsair and EVGA.
Click to expand...
Some are and some aren't as with literally every PSU brand as most don't actually make their own PSUs rather outsource. The TT GF A3 mentioned is one of the better values on the market today, but the PFIII is generally their best line.

Technically you could do with an 850W psu (so long as it's ATX 3.0), but I think a 1000W would be the smart option.

This might help you with your search: https://hwbusters.com/best_picks/best-atx-v3-0-pcie-5-0-ready-psus-picks-2023-hardware-busters/
 
Even Corsair and EVGA make cheaper products, always have. Both use multiple OEM. Seasonic, Channel Well, etc. Even OEMs like Seasonic have started outsourcing their bottom tier units.

RM750e is generally the cheapest ATX 3.0 PSU available. And all reviews put that down to cost cutting and a shorter warranty. This applies up through the RMe series.

They haven't refreshed their RMx line in a while, though it is capable of 12VHPWR, just needs a separate purchase of a type 4 cable to avoid using adapters.
 
I'm crazy but I run a 13600K and a 4090 FE in a ITX case with a SF750 Platinum and it works fine. Not sure how much thirstier the 10850K is vs the 13600K. I do undervolt the 4090 a little bit for noise reasons.
 
magbarn said:
I'm crazy but I run a 13600K and a 4090 FE in a ITX case with a SF750 Platinum and it works fine. Not sure how much thirstier the 10850K is vs the 13600K. I do undervolt the 4090 a little bit for noise reasons.
Click to expand...
I have seen a lot of similar responses from people while searching this. It would be helpful if we had some more people with the actual hardware.
 
Eximo said:
RM1000e and RM1200e are okay, but not great units. I would pick from these.

https://pcpartpicker.com/product/ZD...ly-modular-atx-power-supply-mpg-a1000g-pcie-5

https://pcpartpicker.com/product/4v...-modular-atx-power-supply-ps-tpd-1050fnfagu-l

https://pcpartpicker.com/product/ff...-modular-atx-power-supply-ps-tpd-1200fnfagu-l
Click to expand...
Someone on another website said to avoid a couple of those options. In his words:

The MSI A1000G is CWT. The Thermaltake units are Great Wall, which I would stay far away from.

I'd spend a little more for a better OEM.

The Antec NeoECO series is Seasonic rebrands, and they're a bit cheaper than the ones Seasonic sells themselves.
https://www.newegg.com/antec-neoeco-series-ne1000g-m-atx3-0-1000-w/p/N82E16817371147

Super Flower's Leadex VII XG is Super Flower's own product and a little less expensive than the Antec.
https://www.newegg.com/p/1HU-024C-00056

Both of these are ATX 3.0 compliant. If I were in the market for a sub-$200 1000W PSU, I'd go with the Super Flower unit.
Click to expand...

What do you think? I certainly don't want to spend more than I need to for just marginal benefit in performance?
 
Eximo said:
RM1000e and RM1200e are okay, but not great units. I would pick from these.

https://pcpartpicker.com/product/ZD...ly-modular-atx-power-supply-mpg-a1000g-pcie-5

https://pcpartpicker.com/product/4v...-modular-atx-power-supply-ps-tpd-1050fnfagu-l

https://pcpartpicker.com/product/ff...-modular-atx-power-supply-ps-tpd-1200fnfagu-l
Click to expand...
boju said:
If don't mind spending $70~80 more

https://www.corsair.com/us/en/p/psu...ower-supply-cp-9020259-na#tab-packagecontents
Click to expand...
CelicaGT said:
750W will not be enough. Recommended PSU is 1000W for a 4090.
Click to expand...
Is 1000W enough for the future though? Or will I need to go for a 1200W and greater a couple of years from now when lets say the 4090 is not enough?
 
corsair have always been good to my ive used 750w 850w and my current ive used for a while is a 1000w ,,
that said im going to upgrade to a 1500 or 1600w soon for next gen cards at some point!!
not sure on which brand still deciding but early winner is seasonic !!
 
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