Corsair RM1000x
Reddit take
AI summary of the Reddit excerpts below — not a quote
The Corsair RM1000x is widely regarded by the Reddit community as a top-tier, reliable 1000W power supply, frequently appearing in high-end build recommendations. It is praised for its quiet operation, high-quality Japanese capacitors, and native support for modern high-power GPUs via ATX 3.1 and PCIe 5 standards. While generally considered a 'set and forget' component with a long warranty, its physical length can pose installation challenges in smaller cases.
Pros
- High-quality internal components including Japanese capacitors
- Extremely quiet operation with a zero-RPM fan mode
- Native ATX 3.1 and PCIe 5.0/5.1 support for modern GPUs
- Consistently ranked in the 'A+' tier on popular community PSU tier lists
- Fully modular design with standard Type 4 connectors
Cons
- Physically long unit that can cause clearance issues in compact or mATX cases
- Occasional reports of coil whine, though users note this is an unpredictable risk for most high-wattage PSUs
Caveats
- Ensure your case has sufficient depth for a longer-than-average ATX power supply
- One user reported a catastrophic failure (smoke), though this appears to be an isolated incident or defective unit rather than a trend
Best for
- High-end gaming builds with power-hungry GPUs like the RTX 4090 or 50-series
- Users prioritizing a silent or near-silent PC
- Builders looking for a long-term investment with a 10-year warranty
Avoid if
- Building in a small form factor (SFF) or tight mATX case
- Your system power requirements are significantly lower than 1000W, making the unit an unnecessary expense
This summary uses balanced time weighting with about a 6-month half-life. The evidence comes from a window between January and March 2026, with a median age of approximately 200 days.
Sentiment
28 positive (64%) · 12 mixed (27%) · 4 negative (9%)
Trust + time weighted score: +56% · raw score 55%
What redditors said (10 of 44)
Yeah, the RM1000x is actually a **very good PSU**—it’s considered one of the higher-tier options in the 1000W range. It has **80+ Gold efficiency, fully modular cables, and high-quality Japanese capacitors**, which means better reliability and long lifespan. It’s also **quiet (zero RPM fan mode)** and built to handle modern hardware, especially newer GPUs with ATX 3.1 / PCIe 5 support. In general, RMx series is known for: * strong build quality * stable power delivery * long warranty (usually 10 years). Overall: Yes, it’s a **top-tier PSU**, just make sure you actually need that wattage 👍
PSU: Corsair RM1000x (ATX 3.1)
I’ve been running one for about a year now and I have zero complaints. I really like the little knob on it to control the fan speed if you wanted to, but I just leave it on auto most of the time. I never hear it, and it seems to run cool!
psu just get a 850w -1100w gold rated fully modular like : [https://www.amazon.com/CORSAIR-RM1000x-Ready-Modular-Supply/dp/B0FLGMTSRQ/ref=sr_1_3?crid=1VXL2O778GICT&dib=eyJ2IjoiMSJ9.uXVR9dIzs0_kTwinuqUQERZ8ieRrmh2lIgN1TupltylEwiUYbgRKJBcQ1L0P5-vTmzzAml4B4z81Nt9A6Tlz1YArIzFgKBlSmAkXz7Qt9N7x1cVxQCTyHc-bwR_omDMUWqSwWYhAnOS6Wa_lGTMGZorPZLLaghDOSxrxsfNs06rZjKkyMY0Nm-_zQq6je8-5OS8fSUb7zlAjgtTRzkVJUslhW_cdLSefYNt9NZNiFw8.z-_buRhMhxfHqf16LupSEpxkJ6x1fd9TjH59f4LK80o&dib_tag=se&keywords=power+supply+gold+rated+1000w&qid=1774126363&sprefix=power+supply+gold+rated+1000w%2Caps%2C137&sr=8-3]
PSU : Corsair RM1000x
The RM1000x is rated Cybernetics Platinum and is about the same price as your current power supply.
I ended up splurging on the Corsair RM1000x and no complaints so far.
So I'm running the 5070 ti rn but if I were to upgrade to a 5090 or 5080 super in the next few years, could I keep my PSU?
Yes, the RM1000x is excellent. It's an A+ on the tier list, which is the best PSU resource out there.
The RM1000x is likely just defective, so there's nothing wrong with just getting a replacement. There's also nothing wrong with getting the NZXT C1000. Both are good units, and there's just as much chance of coil whine with the NZXT as there is with another RM1000x - coil whine, as much as people will pop-in with anecdotal evidence, is *completely* unpredictable, because it occurs when using defective components supplied by the same manufacturers that basically every power supply manufacturer uses.
Compare
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