I’ve been lurking here for a little while and just registered to help make the right decision from the start. I was originally planning on a 6GPU setup inside a closed 4U server case for improved airflow with fans moving air through the case the temp may be lower than an open rig with 0 static pressure.
Lately I’ve been thinking why settle for 6 when I can use the same compute platform for 8? Would the cooling be that much better inside a box vs open air? I know you need 2 power supplies for 8 gpus but everything else it connects to (mb,cpu,network etc) is shared. So if in future I add more rigs instead of going to 12 I’ll have 16 and so on. And also reduce power consumption without needing to run more pc’s for more gpu’s.
Is there any cons to running 8 over 2 power supplies? Lets say I started with 6GPU’s with two power supplies running would they use more power? Our power costs are pretty high where I live though I do have a 6kw in solar panels running through a 5kw inverter which would offset my cost during the day. I don’t have issues running multiple 6 GPU rigs inside cases if it makes sense on power and cooling though figure the sweet spot for efficiency might be running 8.
If anyone has any knowledge of these things please share so I can make the right decision from the start.