• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Corsair RMi Series 1000 W

crmaris

Reviewer
Staff member
Joined
Mar 3, 2011
Messages
935 (0.22/day)
Location
Greece
Corsair introduced the RMi series at Computex 2015, and it offers some major upgrades compared to the previous RM line. Today, we will evaluate the strongest RMi unit with 1 kW capacity in order to figure out how it does against its predecessor and all other competing offers in its category.

Show full review
 
Last edited by a moderator:
Joined
Jan 28, 2012
Messages
457 (0.12/day)
Location
Lithuania
Processor Intel Core i5 4670K @ 4.8 GHz
Motherboard AsRock Z87 Extreme 4
Cooling Lepa NeoIllusion RGB CPU cooler
Memory 2*4GB Patriot G2 Series RAM
Video Card(s) MSI Radeon R9 380 4GB
Storage Transcend SSD 740 256GB + WD Caviar Blue 1TB
Display(s) Samsung SA 300 24" Full HD
Case NZXT Phantom 530 + Bitfenix Recon fan controller
Audio Device(s) Creative SB0770 X-Fi Xtreme Gamer
Power Supply PC Power and Cooling Silencer MkIII 750W 80+ Gold
Mouse Logitech G502
Keyboard Steelseries Apex RAW
Benchmark Scores IT WORKS
HXi was the first reason to not buy AXi. And here is the second one :clap:

And pls don't say that 80+ Gold is not enough, everything is about DC quality
 
Joined
Aug 20, 2007
Messages
18,352 (3.32/day)
System Name Pioneer
Processor Ryzen R9 5950X
Motherboard EVGA X570 FTW Wifi
Cooling Noctua NH-D15 + A whole lotta Sunon and Corsair Maglev blower fans...
Memory G.Skill Ripjaws V 64GB (4 x 16GB DR Samsung C-Die) @ DDR4-3200
Video Card(s) EVGA GeForce RTX 3090 Ti FTW3
Storage 2x Crucial P5 Plus 2TB PCIe 4.0 NVMe SSDs
Display(s) 55" LG 55" B9 OLED 4K Display
Case Thermaltake Core X31
Audio Device(s) TOSLINK->Schiit Modi MB->Asgard 2 DAC Amp->AKG Pro K712 Headphones or HDMI->B9 OLED
Power Supply Corsair RM850x Gold 850W (2021 Version)
Mouse Steelseries Prime Wireless
Keyboard WASD CODE v3 Keyboard with MX Cherry Green Switches
Software Windows 11 Enterprise (yes, it's legit)
HXi was the first reason to not buy AXi. And here is the second one :clap:

And pls don't say that 80+ Gold is not enough, everything is about DC quality

The HXi line's DC quality was already excellent. I won't hesitate to admit I'm a little jealous seeing this "lower end" product having even better DC performance than mine, lol. Platinum is all well and good, but you are right, DC quality is king.
 
Joined
Feb 17, 2010
Messages
1,010 (0.22/day)
System Name Test Bench #1
Processor Ryzen 5 5500
Motherboard X470 Taichi
Cooling Water, lot's of water
Memory 4x8GB Micron E
Video Card(s) Card of the day...
Storage Silicon Power A80 1TB x2
Display(s) Samsung UE590
Case HAF XB
Audio Device(s) Logitech Z623
Power Supply LEADEX III 850W
Mouse Cooler Master MM710
Keyboard Rosewill NEON K90
Software 10 Pro
Benchmark Scores https://hwbot.org/user/damric/
I'm glad to see they pulled their heads out of their asses and put good caps in this thing. This has to be the best Channel Well product I have ever seen.
 
Joined
Feb 18, 2005
Messages
3,741 (0.58/day)
Location
Ikenai borderline!
Don't like PSUs that use capacitors on the cables for ripple suppression, it's always felt a bit like cheating to me. Not to mention that doing so makes the cables more fragile - and in this case doesn't really seem to help the all-important 12V ripple, which somewhat negates their presence.

The "Modular Cables" table is wrong and/or confusing. It specifies 1x EPS connector/cable, but the unit includes 2x. It specifies 8x PCIe 6+2 cables, but there are actually 4x cables with 2 connectors each. And the SATA/Molex counts are completely indecipherable. I'd suggest splitting this table up by cable and connector counts to avoid confusion.
 

crmaris

Reviewer
Staff member
Joined
Mar 3, 2011
Messages
935 (0.22/day)
Location
Greece
6+2 pin PCIe (600mm+150mm) 8x describes the connectors, hence we have four cables.
The EPS are two of course. My bad there (when you have limited time to finish a review some things will go wrong).

SATA (400mm+100mm+100mm+100mm) 8x connectors. Basically the second column describes the connectors. I will revise the table in order to make it easier to understand.
 
Joined
Sep 10, 2014
Messages
626 (0.21/day)
Thanks for the test, thorough as usual.

I see some options on the Corsair Link screenshots (Profile, Configuration, Options). How granularly can you configure the fan speeds? Can you give it a profile where it is always on?
And if you tweak the options does the software need to run at startup? Or does it store the changes in the PSU?
 

crmaris

Reviewer
Staff member
Joined
Mar 3, 2011
Messages
935 (0.22/day)
Location
Greece
The fan speed can go as low as 40% of its max RPM and you can have the fan constantly running at least with a fixed speed.

About the changes, if they are stored in the PSU, I am not sure. I will ask jonny to comment on this one.
 
Joined
Sep 10, 2014
Messages
626 (0.21/day)
The fan speed can go as low as 40% of its max RPM and you can have the fan constantly running at least with a fixed speed.

About the changes, if they are stored in the PSU, I am not sure. I will ask jonny to comment on this one.

Thanks for the answer, I'll keep an eye on jonny's reviews.
The thing is: I dislike the fan curve options of most so-called silent PSUs. I'd prefer to have the fan spinning all the time albeit very slowly up to mid charge. After all I'm paying for the product so I should have the choice.
As to software everybody should do what Roccat (for example) does with its peripherals: tweak the settings and either uninstall or impede from startup.
 
Joined
Apr 24, 2007
Messages
216 (0.04/day)
Location
Bay Area, CA
Don't like PSUs that use capacitors on the cables for ripple suppression, it's always felt a bit like cheating to me.

Is it still cheating if it actually does what it's supposed to do? It's not like we're playing a game of Monopoly and someone drew two cards.

...and in this case doesn't really seem to help the all-important 12V ripple, which somewhat negates their presence.

It does? It seems those caps make a bit of a difference. Aris even stated that "Ripple suppression was outstanding!"

Not to mention that doing so makes the cables more fragile...

Legit concern. The ends of the 24-pin, EPS12V and PCIe are more bulky.

And if you tweak the options does the software need to run at startup? Or does it store the changes in the PSU?

The settings keep as long as the PSU is plugged into the wall and the rear switch is "on".

The thing is: I dislike the fan curve options of most so-called silent PSUs. I'd prefer to have the fan spinning all the time albeit very slowly up to mid charge. After all I'm paying for the product so I should have the choice.

Yeah. I have mine set to 40% and it rarely ramps up (two GTX670's on an AX760i). If I have it set to the Zero RPM mode, it stays quiet until I play a game and then it goes up and down as the temperatures change.
 
Joined
Feb 18, 2005
Messages
3,741 (0.58/day)
Location
Ikenai borderline!
Is it still cheating if it actually does what it's supposed to do? It's not like we're playing a game of Monopoly and someone drew two cards.

"Cheating" was the wrong word, it's more like CWT took the easy route and just stuck filter caps into the cables instead of spending the time refining their platform further. I also don't want to see a filter-caps-in-cables "arms rush" between PSU manufacturers in a quest to get that extra .1% stability.

It does? It seems those caps make a bit of a difference. Aris even stated that "Ripple suppression was outstanding!"

Yeah I'm dumb, I was looking at the 12V load regulation. D'oh!
 
Joined
Apr 24, 2007
Messages
216 (0.04/day)
Location
Bay Area, CA
"Cheating" was the wrong word, it's more like CWT took the easy route and just stuck filter caps into the cables instead of spending the time refining their platform further.

Well.... that's not 100% true. The RMi already had good ripple suppression without the caps. Yes, better engineering could yield better ripple suppression, but when the Corsair engineers (not CWT's) noticed that the ripple suppression was helped further by putting caps on the ends the same way Seasonic and SuperFlower/EVGA had been, they said "why not?"
 
Joined
Jan 15, 2012
Messages
917 (0.23/day)
Location
Slovenia
System Name PC.
Processor i7 2600K 5.0Gh,i7 3770K 5.00Gh. EK, Liqed Coooleng
Motherboard P67A-UD7-B3 Gigabyte T.,ASUS,P8Z77-V PREMIUM,MAXIMUS V EXTRIME..
Cooling Liqed Cooleng ,EK Suprime LTX Nickel,EK for Motherboard,Aqua computer (WGA), Thermaltake .... 0i,
Memory G.SKILL F3-17600CL7-2GBPISG. 16GBSkill Sniper F3-17000CL94GBSR on 2400Hz 10-12-11-29 1
Video Card(s) GTX590 ,SLI ,POV TGT best 691Hz ,LiqedCoold,GTX480.....GTX1080MSI SeaHawkEK SLI
Storage OCZ-REVODRIVE 3-240GB,2xCrucialMX100.512.R-0,1x LMT-32L3m,3x 1TB-WD,1x;1x2TbSEAGATE1x2Tb Seagate
Display(s) DELL-U2412Mb,Samsung Synkmaster245B,HP ENVY 34c
Case Thermaltake, NZXT SWITCH 810SE
Audio Device(s) CREATIVE BLASTER X-Fi Titanium HD , AUNE T1MK2 TUBE USB
Power Supply ENERMAX Platimax 1500W,Thermaltake 1500W
Mouse VIPER V560,FUNC MS-3, Prestigio, R.A.T.E.7 and 5,LogitechG502,RAZER,Inperator.,dead...a.s.o.
Keyboard Trust ....LogotechG410
Software Windows7 64....
Benchmark Scores 3DMark Fire Strike 21.385 (37.234,11.828,7.176)
Very nice results Well that's not all. I got chills when I see on the 12 V MOSFETs.
Such MOSFET does not belong to the power supply and there is no cooling element on them. My money and advice for $ 200 PSU will definitely go elsewhere.
 

crmaris

Reviewer
Staff member
Joined
Mar 3, 2011
Messages
935 (0.22/day)
Location
Greece
Thanks for the answer, I'll keep an eye on jonny's reviews.
The thing is: I dislike the fan curve options of most so-called silent PSUs. I'd prefer to have the fan spinning all the time albeit very slowly up to mid charge. After all I'm paying for the product so I should have the choice.
As to software everybody should do what Roccat (for example) does with its peripherals: tweak the settings and either uninstall or impede from startup.

Actually I meant that Jonny will reply since he deals with this stuff at Corsair. He doesn't write reviews any more :)
 

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
17,614 (2.90/day)
Location
Piteå
System Name Black MC in Tokyo
Processor Ryzen 5 2600x
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 8GB G-skill Aegis 3000 or somesuch
Video Card(s) Gainward RTX 3060ti Ghost OC
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Line6 UX1 + some headphones
Power Supply Seasonic Core GC500
Mouse Logitech G602
Keyboard Dell Sk3205
VR HMD Acer Mixed Reality Headset
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!
Very nice results Well that's not all. I got chills when I see on the 12 V MOSFETs.
Such MOSFET does not belong to the power supply and there is no cooling element on them. My money and advice for $ 200 PSU will definitely go elsewhere.

It comes with a seven year warranty, it'll work just fine.
 
Joined
Apr 24, 2007
Messages
216 (0.04/day)
Location
Bay Area, CA
Actually I meant that Jonny will reply since he deals with this stuff at Corsair. He doesn't write reviews any more :)

Right. Jeremy and Tony write the reviews now.

Very nice results Well that's not all. I got chills when I see on the 12 V MOSFETs.
Such MOSFET does not belong to the power supply and there is no cooling element on them. My money and advice for $ 200 PSU will definitely go elsewhere.

That MOSFET doesn't even need to be sinked, TBH. This is 2015, not 1995. That FET is VERY efficient and puts out very little heat, has a very high operating temperature and that BUSBAR is very effective for dissipating any heat there happens to be (it's solid copper). I actually get very tired of reviewers saying that the FET doesn't have "proper cooling". That tells me that they're not even reading the data sheets that they're linking to (sorry Aris).
 
Joined
Sep 10, 2014
Messages
626 (0.21/day)
Actually I meant that Jonny will reply since he deals with this stuff at Corsair. He doesn't write reviews any more :)
Thanks for the clarification.
I did a search and found this about him, although the information is a bit outdated.
 
Joined
May 21, 2008
Messages
4,092 (0.78/day)
Location
Iowa, USA
System Name FUTURE CUBE!
Processor intel Core i5 6600k 4.6GHz 1.4v
Motherboard Gigabyte Z170X-Gaming 7
Cooling Phanteks PH-TC14PE BK
Memory G.Skill TridentZ 3000 Mhz C15 32GB 2x16GB
Video Card(s) Gigabyte Aorus 1080 Ti
Storage 2x M.2 Samsung Evo 250GB/500GB / WD Blue 500GB / 2x RAID1 Toshiba P300 3TB
Display(s) Samsung C24FG70 1080p 144hz Quantum Dot/ASUS VH226H 1080p 21.5"
Case "THE CUBE" Custom built, pure Red Alder wood
Audio Device(s) Creative Sound Core3D/ Logitech Z-2300 200 watts/ Beyerdynamic DT 880
Power Supply Seasonic X Gold 650W
Mouse Logitech G700
Keyboard Logitech G910
Software Windows 10 Pro
If you go with completely new cables for custom sleeving and don't use the capacitors on cables will it cause harm or just not quite as good performance?
 
Joined
Apr 24, 2007
Messages
216 (0.04/day)
Location
Bay Area, CA
If you go with completely new cables for custom sleeving and don't use the capacitors on cables will it cause harm or just not quite as good performance?

Harmful? No. But ripple will be around 16 ~ 20mV instead of the results you see here in the review.
 

crmaris

Reviewer
Staff member
Joined
Mar 3, 2011
Messages
935 (0.22/day)
Location
Greece
That tells me that they're not even reading the data sheets that they're linking to (sorry Aris).

I actually read them since among others I always look at Rds (on) values and max current at high ambient. Actually inside the review I note down that CWT/Corsair is very confident about this design else you would't provide a 7 year warranty. Now according to my opinion with a proper heatsink you could lower noise even more since you would need even less airflow, but this is just my personal view in the subject.
 
Joined
Apr 24, 2007
Messages
216 (0.04/day)
Location
Bay Area, CA
I actually read them since among others I always look at Rds (on) values and max current at high ambient. Actually inside the review I note down that CWT/Corsair is very confident about this design else you would't provide a 7 year warranty. Now according to my opinion with a proper heatsink you could lower noise even more since you would need even less airflow, but this is just my personal view in the subject.

I'm not convinced you could reduce noise because bigger heatsinks would only dissipate heat, but not remove it. The fan still has to remove the heat from the housing.
 

crmaris

Reviewer
Staff member
Joined
Mar 3, 2011
Messages
935 (0.22/day)
Location
Greece
a heatsink would offer a larger area from which is easier to remove heat. Also the bus-bars that cooldown the +12V fets are from copper and this material might absorb heat faster but on the other hand aluminium dissipates it faster. Also in the specific place where this bus-bars are located the airflow isn't optimal. A heatsink with proper fins would definitely do a much better job.
 
Joined
Apr 24, 2007
Messages
216 (0.04/day)
Location
Bay Area, CA
Well... you're the one with the thermal camera. I'd love to see you use it on something like this. ;-)

But I digress.. it's been tested in a lab with multiple thermistors placed throughout and that busbar hardly gets hot. Agreed, a larger, aluminum heatsink would do a better job. But we're talking about something as insignificant as putting active cooling on heatsinked DDR3.
 
Joined
May 9, 2012
Messages
7,545 (1.98/day)
Location
Ovronnaz, Wallis, Switzerland
System Name main/SFFHTPCARGH!(tm)/Xiaomi Mi TV Stick/Poco F3 5G/Formuler Z7+/Realme Pad
Processor Ryzen 5 3600 @4.2/i7-3770/S905X/Snapdragon SD870 5G/HiSilicon Hi3798MV200/Helio G80
Motherboard MSI MAG B550 Tomahawk/HP SFF Q77 Express/uh?/uh?/uh?/UH?!?!?!???
Cooling Enermax ETS-T50 Axe aRGB /basic HP HSF /Aluminum heatsink/Heatpipe/Aluminum heatsink/Aluminum
Memory 2x8gb G.Skill Aegis DDR4/8gb DDR3 1600/2gb LPDDR3/6gb LPDDR5 dual channel/2gb LPDDR4/6gb LPDDR4x
Video Card(s) Powercolor Red Devil RX 6700 XT 12gb/Asus GT 730 2gb/Mali 450MP5/Adreno 650/Mali 450MP4/Mali-G52 MC2
Storage 250gb 870EVO/500gb 860EVO/2x1tb/NVMe 512gb+1tb/1tbSE770G&P1-Arion/500gb/8gb/128gb/8gb+uSD 64gb/128gb
Display(s) X58222 32" 2880x1620/273E3LHSB 27" 1920x1080/Samsung E4 6.67" FHD+120hz/32"FHDTV/10.4" IPS 1200x2000
Case Cougar Panzer Max/Elite 8300 SFF/None/back/front glass GG5/OTT/Aluminum
Audio Device(s) Logitec Z333/SB Audigy RX/HDMI/HDMI/Dolby Atmos+Fiio KA1+Fiio FH1s 26Ω+Nowsonic Prinz 40Ω
Power Supply Chieftec Proton BDF-1000C /HP 240w/12v 1.5A/4Smart VoltHub PD/QC3.0 9-12V 1.96A
Mouse Speedlink Sovos Vertical-Asus ROG Spatha-Logitech MX Ergo/Xiaomi XMRM-006/touch/Formuler Q2F9
Keyboard Deltaco DK440R/none/touch/Formuler RCU 02F9
VR HMD Medion Erazer
Software Win10 64/Win8.1 64/Android 5.1.1 custom/Android TV 8.1/Android 12/Android 7.0/Android 11
Benchmark Scores bench...mark? i do leave mark on bench sometime, to remember which one is the most comfortable. :o
But we're talking about something as insignificant as putting active cooling on heatsinked DDR3.
awww i knew that my Corsair Vengeance Airflow standing above my G.Skill Trident X 2400 was only a cosmetic (wait ... can it still help in case of a water cooling to create a airflow for the VRM's, not that i don't think the 140mm i use on the back of my case is not enough :laugh: (or that the airflow will be enough to come from the RAM area to the VRM area :roll: )

as for the review: good as usual, happy to see the RM series updated, this is the only line from corsair i like (tho seeing it's the same CWT as a HX make me wonder ... well at 200$ a 1k psu ... no worries in the end )

even if i don't like corsair for anything else than SP/AF120L, cases(when not overpriced)and cosmetic RAM cooler :p (personal opinion and experience ofc.)
 
Top