Corsair RM850e 850W ATX 3.0 Power Supply

It’s a power supply , it powers things .
Nice to have new gen features but it’s annoying that it doesn’t have enough Pcie 6+2 cables in box to run 3 8pin connection to gpu, and PB tech doesn’t have any cables to supply after the fact .
Has quite an audible click when power down . It’s a power supply , it powers things .
Nice to have new gen features but it’s annoying that it doesn’t have enough Pcie 6+2 cables in box to run 3 8pin connection to gpu, and PB tech doesn’t have any cables to supply after the fact .
Has quite an audible click when power down .

Working as intended and had the connectors i needed for my build Working as intended and had the connectors i needed for my build

So far this is an excellent product. I can not fault it at all, 5 out of 5 stars. It's extremely quiet when running, the quality of the PSU and the cable wrapping is very high. They've supplied more PCIe and CPU cables than I need, they've even packaged a longer than usual HDD cable should your drive be on the other side of your case.

I installed it into my older PC that suddenly decided to no longer power on. This PC was put together in 2017, it had a ZM600-GV from Zalman. The Corsair RM850e is a nice upgrade of 250W to a grunty total of 850W. It fits beautifully into the old Cooler Master ATX case, really easy to get in there with no scrap...view more So far this is an excellent product. I can not fault it at all, 5 out of 5 stars. It's extremely quiet when running, the quality of the PSU and the cable wrapping is very high. They've supplied more PCIe and CPU cables than I need, they've even packaged a longer than usual HDD cable should your drive be on the other side of your case.

I installed it into my older PC that suddenly decided to no longer power on. This PC was put together in 2017, it had a ZM600-GV from Zalman. The Corsair RM850e is a nice upgrade of 250W to a grunty total of 850W. It fits beautifully into the old Cooler Master ATX case, really easy to get in there with no scraps or cuts to my hands. With the Corsair RM850e you get your standard 4 screws and about a dozen cable ties to keep everything tidy. The motherboard, PCIe, CPU, and additional 6+2 or 8 pin connectors are of great quality plastic. Everything is really nicely done, nothing feels cheap or tacky.

A note to those self-installing this kit into an old PC whose BIOS might not pick up on the change of supply: be sure remove your CMOS battery while powered down, then put it back into your motherboard before powering up. This trick was needed before my BIOS would boot the machine after installing the Corsair RM850e. Not a fault of Corsair at all, just an acknowledgment that a 7 year old BIOS needs to be kicked in the trousers now and then so that it realizes something has changed between power cycles.

As title says, kind of annoying. As title says, kind of annoying.

Brought this PSU as a swap in replacement for a Cooler Master MWE Gold 650W that died. It fits into the Corsair 4000D well and has a little more room due to its shorter profile. However after using it for only a few minutes i was disappointed as it produces an annoying high pitched hiss when the PC is at idle. What is worse though is the fan, as a another buyer mentioned, once it kicks in it creates a horrendous amount of noise compared to my quiet PC. I tried mounting fan down and fan up, no difference! If you don't care about the noise or already have a loud PC then this is a great PSU to work with, it also has inverted decals on each side...view more Brought this PSU as a swap in replacement for a Cooler Master MWE Gold 650W that died. It fits into the Corsair 4000D well and has a little more room due to its shorter profile. However after using it for only a few minutes i was disappointed as it produces an annoying high pitched hiss when the PC is at idle. What is worse though is the fan, as a another buyer mentioned, once it kicks in it creates a horrendous amount of noise compared to my quiet PC. I tried mounting fan down and fan up, no difference! If you don't care about the noise or already have a loud PC then this is a great PSU to work with, it also has inverted decals on each side so if you have a viewing window in your case it looks great. Otherwise stay clear!

Installed this unit twice with the fan down and the fan made a terrible rumbling noise both times, returned the first unit to get the second, then returned the second unit to get an EVGA G5 850W Installed this unit twice with the fan down and the fan made a terrible rumbling noise both times, returned the first unit to get the second, then returned the second unit to get an EVGA G5 850W

Returned this power supply.
I was not told if this was a fault or by design. But this power supply had constant high frequency hum.

Not an issue for gaming PC as GPU fans are will block off this noise, but if using PC for work on your desk you can hear it. Returned this power supply.
I was not told if this was a fault or by design. But this power supply had constant high frequency hum.

Not an issue for gaming PC as GPU fans are will block off this noise, but if using PC for work on your desk you can hear it.

Maybe I'm just unlucky, but it seems to have happened to multiple people online.

This PSU has a high pitched coil whine like noise and it's unbearable. Maybe a quality control issue. Maybe I'm just unlucky, but it seems to have happened to multiple people online.

This PSU has a high pitched coil whine like noise and it's unbearable. Maybe a quality control issue.

Overall it's just a PSU, it does what it is supposed to do; but it does it very well (note: I bought the 850W model, but they are all the same in looks and features; I have used it for 6 weeks at this point). It is completely silent under low load, and not noisy even under load; it is completely stable.
It looks nice for what it is, PSUs can only look a certain way, but it is cool and modern-looking (I appreciate that kind of thing even though it is hidden away at the bottom of my build as per most modern cases).
Please note that this model makes an audible 'click' when powering up and switching off. It is by design and something Corsair e...view more Overall it's just a PSU, it does what it is supposed to do; but it does it very well (note: I bought the 850W model, but they are all the same in looks and features; I have used it for 6 weeks at this point). It is completely silent under low load, and not noisy even under load; it is completely stable.
It looks nice for what it is, PSUs can only look a certain way, but it is cool and modern-looking (I appreciate that kind of thing even though it is hidden away at the bottom of my build as per most modern cases).
Please note that this model makes an audible 'click' when powering up and switching off. It is by design and something Corsair even state on their website; it is nothing to be concerned about.
The cabling is fantastic (ATX 3.0, so the latest available) and it has a 7-year warranty; I'm looking forward to owning this for a long time.

Works well, does what it is supposed to do.

Have used for about a month so far - no issues. Fully modular, easy to have tidy cable management. Works well, does what it is supposed to do.

Have used for about a month so far - no issues. Fully modular, easy to have tidy cable management.