Corsair RM Series intro'd
Posted: Thu Sep 12, 2013 8:21 am
...or this was the easiest way to show it. I bet it's still thermal based.One interesting thing about this new RM series is that the fan is suppose to be govern by load and not temperature like on Seasonic and Kingwin
Magic 8 ball says "try again" I don't get what you mean.Mettyx wrote:I'm hoping to see more about this because it sounds too good to be true, they say they even optimized all the components so there is no coil whine which often happens even if the fan is not spinning thus completely destroying the point of it.
George Corsair rep is making claims over at OCN,CWT: 450~650 & 1000
Chicony: 750 & 850
Hope SPCR gets some samples, would love to see 550 and 850, so we get from both manufacturers.RM is the quietest PSU we've ever made, and might be the quietest in the world.
I dont think Seasonic Platinum cost the same, maybe on sales, but let say for example the Seasonic Platinum 1000 is usually $230 the RM is $180, the Platinum 860 is usually $200 and drops to $170 on sales, the RM850 is $147, and so on. Their AX series usually has close prices with seasonic platinum.laststop wrote:these look really awesome. But the platinum seasonics cost the same. Do I really want to pay the same price for a gold rated psu?
http://www.anandtech.com/show/7333/cors ... r-supplies
My local hardware dealer here in the UK is already stocking most of the range. Prices seem to be closer to the Seasonic G series gold psus rather than the platinums. At 850W and above they undercut the equivalent X-series units.laststop wrote:these look really awesome. But the platinum seasonics cost the same. Do I really want to pay the same price for a gold rated psu?
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My local hardware dealer here in the UK is already stocking most of the range.
Jeremy already has one in his hands. Actually, I think there's a bunch of review samples out there, all of different wattages (except the 450W and 1000W because of delays at CWT), but there's a 9/23 embargo. On Monday, you should see a bunch of reviews pop up.CA_Steve wrote:Newegg is listing them now with stock Oct 30. MSRP places them between the Seasonic G series and the Platinum X.
Gonna review one of these, jonny?
CWT vs. Chicony on component noise, the same. These aren't rebadged units and the components that were selected and used that were potential noise candidates are the same in both units despite the OEM. As for fan speed.. the 850W actually has the best fan speed profile. It's overkill for 99% of the people out there, but if the fan doesn't spin until 40% load (at 25°C ambient for an hour) and even then it only spins at 667 RPM (12.4 dbA measured) and stays there until 70% load, odds are that fan is never going to spin during average use.lb_felipe wrote:Among the ones made by CWT and made by Chicony (Hipro), which are supposed to be better on noise (assuming none of them have coil whine, then what are the coldest and efficient, in order that they do not begin to turn their fans too early and not using a high speed at full load)?
Looking foward to your review, the PSU seems promising.jonnyGURU wrote:Jeremy already has one in his hands. Actually, I think there's a bunch of review samples out there, all of different wattages (except the 450W and 1000W because of delays at CWT), but there's a 9/23 embargo. On Monday, you should see a bunch of reviews pop up.
You are tempting me to get one, but i believe this one is 180mm, not sure if ill be able to mantain the bottom fan on Define/Acr Midi, so might just go with seasonic SS860jonnyGURU wrote:As for fan speed.. the 850W actually has the best fan speed profile. It's overkill for 99% of the people out there, but if the fan doesn't spin until 40% load (at 25°C ambient for an hour) and even then it only spins at 667 RPM (12.4 dbA measured) and stays there until 70% load, odds are that fan is never going to spin during average use.
This is something that im really interested, not only on the RM but in general, maybe since you have tested so many powersuplies and hotboxes you could expand some. I mean i though for PSU like seasonic X and kingwin lzp, that ideally they should be fan up since they are mostly passive on light loads/temps, allowing hot air to go out or even the use case aiflow to cool themselves (kinda like the same principle on Seasonic X400/460), but what you are saying with the fan down, will allow lower temp as its close to ambient even though there is no direct airflow without the fan???jonnyGURU wrote:but with so many cases allowing you to mount the PSU at the bottom, fan side down, you rarely have higher than room temperature PSU intake temps anymore.
IF your case has negative airflow, then a fanless PSU could maintain low noise when mounted fan up simply from natural aspiration. It just depends on your build. Typically, in a tower ATX at least, you have the graphics card right there over the PSU intake fan, so once that fan kicks in, it's sucking hot air around the neighborhood of the graphics card.Abula wrote:This is something that im really interested, not only on the RM but in general, maybe since you have tested so many powersuplies and hotboxes you could expand some. I mean i though for PSU like seasonic X and kingwin lzp, that ideally they should be fan up since they are mostly passive on light loads/temps, allowing hot air to go out or even the use case aiflow to cool themselves (kinda like the same principle on Seasonic X400/460), but what you are saying with the fan down, will allow lower temp as its close to ambient even though there is no direct airflow without the fan???jonnyGURU wrote:but with so many cases allowing you to mount the PSU at the bottom, fan side down, you rarely have higher than room temperature PSU intake temps anymore.
If I may ask, and putting aside any pricing issues, would you make your educated guess about how the RM-series compares against the recently reviewed Antec HCP-850 Platinum, acoustically-wise I mean?jonnyGURU wrote:RM isn't supposed to replace TX feature for feature. It's just the fact that it's 80 Plus Gold, instead of Bronze... fully modular, instead of semi-modular.... and super quiet instead of average noise levels.... at the same price point, why the heck would anyone want TX anymore when you can get the RM instead?
Performance wise, the HX is still a better PSU, so it won't replace that. Though the RM is still a quieter unit. Not that the HX is "bad", but Corsair has made more strides in reducing noise since the HX was initially launched. I'm sure it's only a matter of time before the HX is replaced with a quieter version.
Cool beans. Thanks for the info.jonnyGURU wrote:Jeremy already has one in his hands. Actually, I think there's a bunch of review samples out there, all of different wattages (except the 450W and 1000W because of delays at CWT), but there's a 9/23 embargo. On Monday, you should see a bunch of reviews pop up.
lodestar wrote:A review of the RM 550 by PC Perspective, of which the most relevant page is maybe this one. The PSU fan does not run until at least 50% load on this model.
Like I said, it's temperature AND time based. So either it wasn't hot enough in his lab and/or he didn't have the load on it for very long.lodestar wrote:A review of the RM 550 by PC Perspective, of which the most relevant page is maybe this one. The PSU fan does not run until at least 50% load on this model.
Yeah.... I think it's lower down the line. He's got a chassis and a different PSU queued up before the RM.quest_for_silence wrote: It's monday: I guess Jeremy is going to make his own frightening (howling?) entrance in the reviews' arena for the RM-series...
The UK site, Hexus.net, has published a RM 750w review today, their results seem to be closer to what Corsair claim, with the fan turning on just before the 40% load mark.jonnyGURU wrote:Like I said, it's temperature AND time based. So either it wasn't hot enough in his lab and/or he didn't have the load on it for very long.