What do I need to know, when integrating a T4 card(s) into a host system, to ensure optimal, reliable thermal dissipation and performance?
What are the requirements of the “outside” system surrounding the T4 card, in terms of fans and airflow?
It seems like the T4 cannot be expected to work by itself in still air, without outside cooling assistance.
Looking at the integrated sensor temperature (as reported by nvidia-smi), how hot is too hot? In some cases it can easily be up over 70 degrees C, and too hot to physically handle if removed straight after power shutdown. Is it required/expected to remain at less than 50 degrees C?
We’re experiencing some serious issues with T4 overheating, in enterprise ML applications.
The fanless, passive architecture seems like a poor design choice, in my opinion.
The use case here is not silent, fanless home theatre PCs. These systems have to work reliably in industrial applications, with two or more T4 cards per system.
The fanless approach makes the T4 thermal performance much more dependent on the rest of the architecture inside the case, and airflow and/or conductive thermal coupling to the card.
The T4 product brief makes reference to the ’ System Design Guide for NVIDIA Enterprise GPU Products Design Guide (DG-07562-001)’.
Where is this document available?
The product brief specifies the supported operating temperature of the card as 0 °C to 50 °C.
Has anybody actually got the card operating, with a workload, at a temperature that stays at less than 50 °C ?
In my practical experience, this seems very challenging, without spraying the card with liquid nitrogen or something.
“The T4 supports bi-directional airflow either from left to right, or from right to left. CFM
requirements are identical for both airflow directions.”
What is the actual CFM requirement?
This person has made an elegant 3D-printed blower fan adapter which channels forced air straight through the channel over the T4 heatsink and outside the back of the case.
I haven’t tried this yet but plan on trying it.
This looks like it could work very well - but why wasn’t this a standard part of the T4 hardware?
It seems almost unprofessional, an improper use of the product, to attach my own 3D-printed fan duct onto the product which has been purchased for a professional application. But do I have a better choice?