I ended up doing a custom build in the HL8 with Acrylic front which I detailed in the post linked below. Although I went for some upgrades, I also reused anything I could from the HL8 full build part list. This might give you some idea of what to expect temperature wise.
As mentioned, I went with the “Pro Max” build I outlined with a Ryzen 5 5600 plus five (5) Seagate Exos X14 12TB hard drives.
My HL8 Noctua fans are as follows with idle system:
- Fan 1: Case (2x 120mm): 900 RPM
- Fan 2: Case (1x 40mm): 2400 RPM
- Fan 3: CPU (1x 90mm): 1400 RPM
And here are some of the temps I currently have at idle:
- CPU: 37C
- X570: 61C
- MOBO: 39C
- HDD: 37-40C
I have a few other observations I’ve had regarding the fans and the case:
- The smaller Noctua 40mm on the front of the case does very little in the way of the cooling. I was hoping I could use to help with the X570 chipset but I really have the crank the RPM’s up to around 4000 RPM’s to get any benefit. At that level, the fan is distinctly audible with a pitch higher than the other fans. I found I really need to keep it under 3000 rpm unless the system is under full load for an extended period of time.
- Even while running an extended stress test, my system does not thermal throttle and keeps max turbo speeds. CPU temperature is then reaching into the mid-80’s. The caveat here is that all the fans at that point are pretty much running at full speed to maintain keep it going like that.