Not the cheapest price I’ve ever seen, but still a good price none the less
Corsair RM850x 80 Plus Gold, 850 Watts, Fully Modular, Power Supply Unit $218 Delivered @ Amazon AU
Last edited 02/09/2020 - 22:27 by 1 other user
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750w recommended for 3080 and 3090 but it also depends on CPU. More headroom is better.
Sorry for offtopic but anyone know if the new 3090 will hold up on an RM750.. or will I need an 850w psu? W/ 3700x cpu
Or is that knowledge just not really out in the world yet
Yes it will
Use this tool - https://outervision.com/power-supply-calculator
Given the power requirements, Nvidia recommends a 750W power supply for the GeForce RTX 3090 and GeForce RTX 3080, while the GeForce RTX 3070 can get by with a 650W unit.
Oh man. I just got a 600W PSU from the Shopping Express $99 deal :/ How frustrating.
Why the frustration? What kind of cpu are you using? are you planning to get a 3090?
In my opinion the current psu you have purchased will be enough as long as you stay in the tier you planned to be in when you purchased it.
@kaleidoscope: Defs won't get a 3090, tossing up now between the other 2. Undecided on which Ryzen. The more I've read since yesterday the more I'm convinced 600W should be fine…
I plugged everything with a 3080 into a load calculator yesterday and got 512, so hopefully there are no issues.
@[Deactivated]: it’ll be fine. If you have had an idea for heavy overclocking with a top tier system down the line you should not start with a 600W.
But if you have a 600W it would mean you’ve settled for a target and it should remain that way. i mean people upgrading psu due to a new component is very rare unless there has been a huge overlook of the system capabilities it self.
3080 can get by with a 650W too unless you're overclocking the CPU (or the GPU).
a 650w 80 gold, not just any 650w
@bobvegas: All 650w PSUs are rated to deliver 650w, the less efficient ones just draw more power from the wall to accomplish that.
@bobvegas: 650W is the output of psu. gold or platinum is the efficiency which determines how much energy it will take from the wall to deliver 650W
Cheers, thanks very much
Look up Gamers Nexus on youtube. They did a recent video regarding the power requirements of different systems.
Yes, +1 for this. "Recommended power requirements" are always conservative, and usually over exaggerate how much you need. GN showed that you can build a system with a 10900K and a RTX 2080 Ti, and still have it run healthily on a 500W power supply.
I've been looking at this psu for about 2 weeks and it's always this price from a variety of local stores
Any news on 3k series preorders my beautiful people?
Not yet but I'd stay on my toes about it since we are getting pretty close to the 3080 release date….literally like two weeks.
There will be no preorders
Any chance i can get by with 650W PSU for 3080, with 8700k.
People on /r/nvidia are saying yes, but Nvidia recommends 750W minimum. I’d be more inclined to believe Nvidia, just to stay on the safe side
NVIDIA's recommendations are accounting for shitty power supplies with extra power hungry components. 650W will be fine.
ive cancelled my order for the 850w psu and taking a leap of faith on my CX650M. guess i can always order a new PSU if it isnt enough.
https://www.reddit.com/r/nvidia/comments/ikx2ti/psa_600w_pow…
yeah people here saying it should be fine, i got a thermaltake toughpower 650W 80+ gold bought a year ago, hoping it'll be fine for 3080.
I would wait for newer revision of power supply since the 12 pin connector is introduced. Converter will be provided by the GPU. I guess on the other hand, there will be a rush of demand in quality PSUs.
The new GPUs will sell like hot cakes so it will be difficult to get one. Retailers will be bumping up the prices.
Leaks so far were accurate on nVidia side, so if the leaks on AMD is accurate, it will be quite interesting. Clearly nVidia want to soak up the market and prevent too many people from going next gen consoles this holiday season. Surely AMD needs to respond soon. AMD does have the advantage of using TSMC's 7nm, whereas nVidia went with Samsung's 8nm (technically a refined 10nm).
I would wait for newer revision of power supply since the 12 pin connector is introduced.
Surely this won't happen for a few months at least though?
Wouldn't be in any rush to get a new PSU myself, will probably be hard to find any discounts and the new 12 pin connector is only for the reference cards, partner companies like ASUS, MSI etc. will still be using 8 pin connections from what I've seen.
Considering the inclusion of the adapter of 2x8pin to 1x 12pin in the box, I wouldn't count on it being included in PSU. In addtion, Nvidia said that this 12pin is of their own design and only time will tell if it will become a standard. I doubt it'll be out of the box PSU for years even.
I bit the bullet and bought the 850w PSU in anticipation of an upgrade to the 3080. Did the calculator above and came far too close for comfort.
Load Wattage: 621 W
Recommended PSU Wattage: 671 Wproblems caused by low supply psu's are very difficult to find unless you have a bigger spare. been there, waste of time and money. over spec the psu and save time and money
That depends if you have crappy 650W or a decent one.
Corsair CX650M… I'm pretty sure 650W is still 650W, if its insufficient, no matter the quality, it'll still be insufficient?
For starters it depends on how old the PSU is, as they degrade over time.
So just because it was a 650w unit when you bought it, doesn’t mean it can still produce that much today.@Rail Rider95: Apr 2019. not too old? I keep reading that nvidia is always overestimating PSU on the safe side so whats your take on this…. should i cancel the 850w psu mmm
it depends on other factors as well such as the current on the 12V rails. But Corsair CX is not an el cheapo PSU, so it should be as good as any 650w psu.
Bought it last time it was on sale for $199. Really good PSU. Quiet as. My only gripe is that the modular cables are all really long so if you have a smaller case, cable management is really difficult.
I have a large case (Lian Li PC-O11 Dynamic) but the PSU is stored behind the motherboard so you don't need much cable length. The 24 pin cable I had to weave all around the place and it takes up most of my cable management space.
you have an unusual case, why blame the cables? If you would have smaller cables then 90% of the cases would not be compatible with it.
Just warning people and it's still not that short a cable run. My two other power supplies have 24 pin cable lengths of 45cm. This 24 pin cable length is 60cm.
$750W
I think my brain exploded.
in a science fiction series I've been reading recently, the global currency is watt-dollars. Basically power is the main constraint to resource, thus underwrites the currency.
750$J/s
If anyone missed out and is still looking for a PSU, Ebay are currently having a 21% off sale on selected items for Ebay Plus members. Picked up a Corsair RM750X (80+ Gold, fully modular) for $193 using code PARTY21 - Futu Online. This is in preparation for the RTX 3070 :) :)
Also noticed the Corsair RM750 for $187.23 from Futu via Ebay Plus sale. Same Gold Fully modular PSU but in a 160mm long case rather than 200mm in RM750x
They are both 160mm long.
Oh. I thought x was extended? What's the difference and which is better?
Corsair's new RM (without the "x") line consists of three members with capacities ranging from 650W to 850W. All of them are more affordable versions of the corresponding RMx models, which is expected to be updated in the near future to be fully compatible with the latest ATX specification.
The RM units mostly use Chinese Elite caps, which are of decent quality, instead of the superior Japanese Nichicon and Chemi Cons and employ Hong Hua rifle bearing fans instead of Corsair's more-powerful NR135L. These changes might not be welcome by PSU enthusiasts, but the fact is that they don't seem to affect the product's lifetime since Corsair provides exactly the same warranty period (ten-years), in both RM and RMx units.
Two new features of the RM units, which are not present in the RMx 2018 line, are the increased efficiency under very light loads (2% of the max-rated-output) and support for Windows 10’s new Modern Standby mode that enhances boot speed and connectivity for your PC. The S3 sleep state usually takes anywhere from 7-15 seconds to turn on depending on your PC's configuration, while the Modern Standby function promises to bring that to reliably under five seconds.
Finally, the RM units don't use cables with in-line caps, as the RMx do, which might help in cable management since the cables are less rigid, but the ripple suppression is not up to the excellent levels of the RMx units (still it is quite good though).
All RM models come with two EPS connectors, so they are fully capable to power high-end mainboards with increased power needs.(
@O O: Very useful info thanks!
Which is better you think between getting one now and waiting for the black friday? I'm planning to build my pc after AMD's zen3 release.
i'm in the same boat, but I will wait.
the 850 ts's were $110 odd earlier this year…
Need this for the almost released RTX 3090 right?