Do you have any ideas for PSU replacements?
Do you have any ideas for PSU replacements?
I built my last system in 2018 and replaced a 550 W EVGA PSU that I believe is no longer functioning properly. I'm curious whether the new PSU I'm considering will suit the parts in my seven-year-old build. I'm looking into this model:
CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – compatible with ATX 3.1 and PCIe 5.1, Cybenetics Gold Efficiency, 105°C-rated capacitors, and modern standby features.
I'm curious about whether the new PSU will work with the parts in my seven-year-old build.
Here are the details of my setup:
CPU: [insert CPU]
CPU cooler: [insert cooler]
Motherboard: [insert motherboard model]
Ram: [insert RAM type and amount]
SSD/HDD: [insert storage type and capacity]
GPU: [insert GPU model]
PSU: [insert PSU model]
Chassis: [insert chassis name]
If you think the community could offer improved advice, please share your location, budget for the PSU, and preferred place to buy it.
Corsair RMe offers average performance, rated Tier B+. For a gaming setup, a proper PSU would be a Tier A model. Examples include Seasonic Focus/Vertex/PRIME, Corsair RMx/RMi/HXi/AXi, and Super Flower Leadex Gold/Platinum/Titanium.
PSU tier list can be found here: https://docs.google.com/spreadsheet...JW...1973454078
Tier A is suitable, while Tier A+ is better.
My two PCs run exclusively on Tier A+ power supplies. I own Seasonic PRIME 650 Titanium (Tier A+) and Seasonic PRIME Ultra 650 Titanium (Tier A+). Detailed specs and images are available in my profile.
Regarding maximum wattage, it’s hard to say without knowing the rest of the system components.
The PSU is the key component of your computer. It's worth investing a bit more for better performance.
Even though I agree that PSU quality is essential, my local Amazon page lists a price of RM1000e, which equals about US $173.30, and RM1000X for $239.95. That’s another sixty-six dollars for the better option. Not quite cheap, but not exactly a bargain. I’ll probably wait until Black Friday.
Those requiring a 1kW PSU will need costly high-power equipment, such as the R7 9800X3D with an RTX 5080, making it expensive. For them, paying $66 is hardly affordable. You won't find 1kW units in a budget build like the R5 7600X with an RTX 5060, where the price difference is significant.
I recently looked at my local Amazon listings for 650W Corsair power supplies and was surprised to see the RM650x (2018) listed at around US $375.06.
https://www.amazon.co.uk/CORSAIR-RM650x-...B079H6111J
The RM550x (2018) comes even more costly, priced at roughly US $412.83. It claims to include unicorn horn.
https://www.amazon.co.uk/CORSAIR-RM650x-...GL413?th=1
The RM650e (2025) offers a more reasonable price of about US $105.94.
https://www.amazon.co.uk/CORSAIR-RM650e-...=computers
It seems Amazon is charging such high prices for an older RM-x model from 2018. Perhaps this specific version is no longer produced, giving it a scarcity value for replacement purposes. They could also be using these numbers as decoys to discourage purchases when none are available.
Opting for a more practical alternative would be the RM750x at US $146.03. Not the cheapest option, but better suited for budget builds.
https://www.amazon.co.uk/CORSAIR-RM750x-...=computers
In contrast, the RM750e is only US $119.48, which is about $26.55 less than the RM750x and more appealing for those on a tight budget.
https://www.amazon.co.uk/CORSAIR-RM750e-...=computers
Not everyone requires 750W, especially if constructing a basic (non-gaming) PC where 550W or 650W would suffice. Unfortunately, there aren’t affordable low-power RM-x models available locally, which might lead many to consider the RM650e.
There are other reputable brands offering high-quality low-power PSUs, so you don’t have to sacrifice quality for Corsair’s RM series.
Yes, similar to the Tt Toughpower GF1 ARGB 650W, a solid Tier A+ power supply, priced at 105 pounds, available on Amazon UK: https://www.amazon.co.uk/dp/B07SWRZMX3