MixedGot the silver Ultra 9 version, likes the look, but the top of the keyboard gets quite hot while gaming on Minecraft and CS2.
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ASUS Zenbook 14 OLED (UX3405) Reviews
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Real owner experiences (69)
Add your reviewShowing 18 reviews mentioning runs hot Show all
MixedAfter about a year the fan began growling and stopping, thermal paste was dried out, and games average 90C even after repasting, though they like the computer overall.
MixedHas the Ultra 9 285H with 32GB; thermals and fan noise are bad only while gaming, otherwise it is very light with very good build quality but a fingerprint magnet.
MixedOwned the Ultra 7 155H model for about 1.5 years and it throttled to under 10W with fps drops; repasting with PTM sheet dropped temperatures a lot and fixed the stutters.
MixedHad an overheating nightmare with a screaming fan and dried paste. After a PTM7950 pad there is zero throttling under heavy workloads, sane temperatures and a barely audible fan.
MixedOpened a 2025 Ultra 5 unit after a month and found the factory paste dry and barely touching the heat pipe. After repasting with MX-6 it idles in the mid 40s C and the fan often stops.
MixedBought the i9 model and saw overheating at first, 90+ C. After a BIOS update to v314, temperatures dropped to about 75-80 C on medium load without any noticeable performance drop.
MixedUltra 7 255H owner who repasted and now idles at 45 C. Under high load in Minecraft there are brief spikes to 95 C before settling near 80 C.
MixedUses it for university and it hit 80+ C just updating with the fans going wild. The paste was crazy dry, and with MX4 it now runs cool.
MixedUltra 5 125H owner who repasted with Noctua H2. Idle stayed the same, but peak temperatures fell from over 100 C to below 95 C.
MixedUltra 9 owner who found the stock paste dry and replaced it with NT-H2. Thermals improved, but sustained loads like kernel compiles still reach 100 C and can shut it off.
MixedUX3405MA Ultra 9 owner with overheating symptoms who repasted with Kryonaut. 45W now holds the CPU near 90 C, where before it exceeded 100 C and shut down.
MixedUltra 9 16GB owner whose fans and heat were crazy from day one. Repasting with MX6 dropped temps and fan noise a lot, though HWInfo still shows spikes to 101 C.
MixedUltra 7 155H owner who repasted for lower idle temps but still sees spikes to 100 C. They are unimpressed versus a previous AMD 7840HS laptop and need 35W to match its performance.
MixedUltra 9 185H owner who ran at 65-75 C, found the paste dry as sand, and got 45-48 C after replacing it with MX-6.
MixedHad constant thermal throttling on a weeks-old unit. Swapping the paste for MX-6 made it about 20C cooler and ended the throttling.
MixedUltra 5 16GB owner who replaced the dry stock paste with Noctua NT-H1 and got 45-50 C idle and steadier FPS, though the CPU still reaches 85-95 C when gaming.
MixedOwns the Core Ultra 9 32GB model for over a year. Factory thermal paste dried out and the fans ran loud, so they repaste about every six months, and otherwise call it an awesome device.
Common questions about ASUS Zenbook 14 OLED (UX3405)
Is ASUS Zenbook 14 OLED (UX3405) worth it?
Of the 69 reviews with a clear verdict, 19% are positive, 45% mixed and 36% negative. The praise mentioned most is light and portable. The most common complaint is runs hot.
What are the most common complaints about ASUS Zenbook 14 OLED (UX3405)?
The complaints reviewers mention most: runs hot (15 reviews), loud fans (6 reviews) and throttling (4 reviews). For example: Owns the Ultra 7 155H non-touch model and says it runs very hot, up to 90 C and about 75 C while charging.
Where do these ASUS Zenbook 14 OLED (UX3405) reviews come from?
We collected and summarized 69 experiences shared on Reddit, with links to the original sources. Reviews submitted here are checked for spam before they appear. Every review, submitted here or collected, is read as positive, mixed or negative.
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