Corsair CX750
Reddit take
AI summary of the Reddit excerpts below — not a quote
The Corsair CX750 is generally regarded as a budget-tier power supply that has seen significant reliability complaints in recent discussions. While the CX line is noted to have improved over its earliest iterations, users frequently report serious hardware failures, including burning smells, suspected blown capacitors, and system instability issues like Kernel-Power 41 errors. Consequently, the prevailing sentiment is negative, with many users advising immediate RMAs rather than attempting to troubleshoot failing units.
Pros
- Positioned as an affordable budget entry for 750W power needs
- Acknowledged as an improvement over older, lower-quality versions of the CX series
Cons
- Reports of hardware failure involving burning smells and potential blown capacitors
- Associated with system instability and Kernel-Power 41 errors
- Lower component quality (fans and capacitors) compared to Corsair's RMx or RMe lines
- Frequent need for RMA (Return Merchandise Authorization) due to reliability issues
Caveats
- A burning smell from the unit is a critical warning sign reported by multiple users
- Considered 'budget' tier, which may not be suitable for high-end or mission-critical builds
Best for
- Strictly budget-constrained builds where a 750W capacity is required from a known brand
Avoid if
- You prioritize long-term system reliability and stability
- You are sensitive to potential component noise or hardware failure risks
- You have the budget to step up to higher-tier units like the Corsair RMx series
This summary uses balanced time weighting with about a 6-month half-life. The evidence is based on 14 mentions from r/buildapc with a median age of approximately 188 days; the relatively small and older sample size for a hardware product suggests caution.
Sentiment
1 positive (7%) · 2 mixed (14%) · 11 negative (79%)
Trust + time weighted score: -66% · raw score -71%
What redditors said (10 of 14)
Specs: * PSU: Corsair CX750 (750W)
I understand the RM*e versions are lower quality than RM*x but also cheaper. They have taiwanese chips and worse fans, which can make annoying sounds.
new one is CORSAIR CX750
If RMA is an option, just do that.
Probably a blown capacitor. Stop using it and don't inhale the fumes. Just RMA.
PSU: Corsair CX750
I recently upgraded to a new GPU (NVIDIA 5070 along with a new PSU (Corsair CX750). After installing everything, the PC initially wouldn’t start properly — I later found that one of the PCIe power cables to the GPU wasn’t fully seated.
Because of the previous Kernel-Power 41 errors and the current symptoms, I suspect the PSU might be failing, but I'm not completely sure.
But just checked and even off it still stinks so i send a RMA request
Yes definitely rma it. I’d rather wait for the replacement psu than having to replace the whole pc.
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