I gathered the remaining parts:
Due to the motherboard's limitations, one GPU is connected to the CPU's direct x8 slot, and the other uses the chipset's x4 slot.
The strange thing is that when I checked with lspci, both were linked at PCIe1.0 (2.5GT/s).
Specs say it should be 3.0... but even if I change the auto setting to 3.0, it stays at 1.0.
It seems like the board is outdated.
I set the main GPU for display output to the 5500GT integrated GPU.
As a beginner, I just installed LM Studio.
The model is Qwen3.8 27B Q4_K_M quantized version, and I only set the context size to 144K.
It seems like the maximum is 256K, but loading is impossible with this size.
I tried having LM Studio CLI write a black hole html:
I can't compare it because I can't run it single, but TPS seems pretty good even with PCIe1.0.
I think I need to improve the body cooling.
The GPU fan is running full blast, and the exhaust side metal plate is very hot...
I was considering changing the motherboard for a 2GPU setup at home, but I was hesitant about buying an expensive x8/x8 board.
It seems like a regular x16/x4 board wouldn't be a problem for just personal use.
