Corsair revamped the affordable RMe line, with ATX v3.1 compliant units. I will evaluate the less stronger model of the line, with 650W max power, in this review.
The Corsair RM650e ATX v3.1 is (or will be) included in my best ATX v3.x & PCIe 5.x PSU picks article.
The entire RMe line is certified by Cybenetics, with the 650W model achieving a Cybenetics Platinum efficiency rating and a Cybenetics LAMBDA-A++ noise rating, meaning that its average noise output is below 15 dBA.
The new RMe units have native 12V-2×6 sockets to meet the Intel ATX v3.1 and PCIe 5.1 standards. Their embossed cables have low-profile combs to make cable management less effortless. These cables also look nicer. A loose speed profile drives the 120mm rifle bearing fan to keep noise output low. Lastly, the PSU’s dimensions are compact, thanks to the restricted depth of the chassis, at 140mm.
A notable price gap exists between the 750W, 850W, and 1000W models.
ATX v3.1 650W PSU Reviews:
- Cooler Master GX III 650W ATX v3.0 PSU Review
- DeepCool PN650D ATX v3.1 PSU Review
- Thermaltake Toughpower GF A3 650W PSU Review
- XPG Core Reactor II VE 650W PSU Review
- XPG KYBER 650W PSU Review
- Manufacturer (OEM): HEC
- Max Power: 650W
- Cybenetics Efficiency: [115V] Cybenetics Platinum (89.070%), [230V] Cybenetics Platinum (91.226%)
- Noise: Cybenetics A++ (<15 dB[A])
- Compliance: ATX v3.1, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C
- Alternative Low Power Mode support: Yes
- Power 12V combined: 650W
- Number of 12V rails: 1
- Power 5V + 3.3v: 110W
- Power 5VSB: 15W
- Cooling: 120mm Rifle Bearing Fan (HA1225H12SF-Z)
- Semi-Passive Operation: ✓
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (1x cables), 3x PCIe 6+2 pin (2x cables), 1x PCIe 12+2 pin (300W)
- Peripheral Connectors: 6x SATA (2x cables), 2x 4-pin Molex (1x cable)
- ATX Cable Length: 610mm
- EPS Cable Length: 740+100mm
- 12+2 pin PCIe Cable Length: 640mm
- 6+2 pin PCIe Cable Length: 650mm
- Distance between SATA / 4-pin Molex: 100mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 140mm
- Weight: 1.49 kg (3.28 lb)
- Warranty: 7-years
- MSRP (excluding VAT): $90
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | ||
| Max. Power | Amps | 20 | 20 | 54.2 | 3 | |
| Watts | 110 | 650 | 15 | |||
| Total Max. Power (W) | 650 | |||||
Hello Aris, such great work your providing the community! Now that my eyes are open I feel like they should have never hit the market from the beggining, an example is the FSP Vitas, I was about to buy one but was hesitant because you made very explicit about the Yang Loo fan being very weak, so I did some research and Voilá there seems to be an increasing number of people who bought a Vita some months ago now posting videos about fan noise and asking for advice. I mean the Vitas are amazing as far as voltage regulations goes and whatnot, but should a product that is bound to fail shortly after being sold really be put out to the market? It’s not so easy finding a Psu we can trust
So about this Rme650, the Inrush Currents are really high, will that be an issue or is it good? I’m thinking it might be good due to the new gpus needing very short power spikes but then again I’m not totally familiar with the concept and also your graph states that Lower is Better, pls if you can take the time to briefly elaborate I’d be very welcome! Seems like Corsair adopted Cybenetics approved test so cheers on that
Hi! High inrush currents are not good, but it is not easy, at all, to completely drain the bulk cap(s) as we do. High inrush current means that with a completely drained bulk cap, the PSU asks for way to much power, which can even trip the electrical relay connected to the AC socket. As for YL fans, they are hit and miss unfortunately. Really bad idea from FSP to use them and I told them to switch ASAP to something better.
I get it now! So my lack of in depth electrical knowledge assumes it shouldn’t be a problem unless the bulk caps go bad or the psu is disconnected from the ac plug for a very long time? For high inrysh currents psu would it be better prior to the 1st ever use to plug her to ac power and turn the On switch for the bulk capacitors to fill up??
Also, I’m thinking of getting this Rme650 to go with a 330 TDP gpu (7800 xt overclocked) and 65W ryzen 7600, for a total of 450W, just 2 quick questions please:
-Do you think if in the future If I go for something like a 9800x3d while keeping a ~300W TDP gpu it would be problematic?
-Also, this psu only comes with 1x “12v-6×2 to 2x8pin” cable, but it’s only rated for 300W, isn’t this a problem for a 330W gpu? I think it’s my only way of connecting the gpu with this cable… because the psu only has 2x8pin Cpu/Pcie connections so I need 1 for Cpu and I don’t know if I should connect the gpu (which has 2x8pin) to only 1x8pin on the psu.
1) 9800X3D has low power consumption so even with a 300W GPU this PSU will be ok
2) If the GPU needs 330W then it will probably won’t work with the 300W set 12V-2×6
Thank you Aris! I actually ended up going with your suggestion “you can get one of the best mid-capacity PSUs available in today’s market, the RM750x (ATX v3.1), so consider this, too” and I already have a Ryzen 7700 with me and waiting on a Palit 5070 Ti. So my plans sidetracked completely and ended up getting a different Psu, Cpu, Gpu. Ahahahah
Is there a Paypal where I could buy you a beer?
Much *more* success to you and your team Aris, thanks for the help!
this little rm is the best cybernetic power AND noise sold in rm series sold by corsair
Speaking about Corsair …
I own rm 1000x 2024
Rtx 4090 super (right now)
Ryzen 9800x3d
For future Rtx 5090 is good way to go ? This psu will handle it ? I searched whole psu’s models on your side and I’m looking for sleeved cabled / individually so u pick this one.
yes it will be ok