The AS7004T NAS is overheating.
The AS7004T NAS is overheating.
Hello! I bought a NAS from a nearby used shop, specifically an Asus AS7004T. It was in great shape and performed well for about a week before starting to slow down noticeably. Both file transfers and the web interface are running very slowly now. The temperature reading from the portal shows the CPU is around 70℃ (158℉) when idle, while the system and disk temps are normal (~45℃/113℉ and 35℃/35℃). The fan is always spinning at high speed, about 1750 RPM. I disassembled it, cleaned the CPU and heatsink, and even applied a new thermal paste (Arctic MX-6), but nothing changed. The room temperature is roughly 26℃ (78.8℉). Anyone know if this model tends to get that hot? Any tips or advice would be appreciated!
It might have ended up in a secondhand store, but these fans are generally straightforward to obtain. The rear fan is the only one that actually cools well, otherwise it’s just a standard 120mm unit. It looks like a typical 3 or 4-pin connector—purchase something like an Arctic P12 for better performance and quieter operation!
It originated from a deceased person's estate as stated by the seller. It's a 4-pin connector for a PWM fan, making it relatively straightforward to obtain if needed (refer to details below). I tested various configuration settings and the fan can reach up to 5200 RPM without issues—though it produces significant noise at that speed. This suggests the fan isn't faulty or broken. It seems the operating system caps its speed around 1750 RPM for an unknown reason. Using the command-line tool (fanctrl) only temporarily changes the RPM for a short period before the OS takes over.
It stays around 70℃ under any load. Reminder: I just use this NAS purely for raw data storage, avoiding heavy processing tasks.