Hi, I hope someone who has more practice with those models can confirm an idea I got.
My understanding is that the z820 and Z840 can accomodate 3 PCI Express double slot if the machine has two CPUs, but only two of the cards would have x16 speed, the third only x8.
But I am not sure if the Z6 could accomodate the three double slot (even if two x16 and one x8), only two double slot x16 and one single slot x8, or only two double slot ones.
Power-wise, as far as I could see, the Z820 can have a 1125W power supply, and the same is valid for the z840, so they can accomodate even 717W of graphic cards, but the Z6 has a power supply of 1000 W, so I am afraid it could cope with a 575W graphic card configuration, but not with a 717W or a 612 W one.
I am trying to understand if I could manage with a z820, could do with a z6, or would need forcibly to go for the z840 - I don't really care about how many cores each CPU has, for that side, two 4-cores would be more than enough.
The idea is initially probably a Quadro 4000 (or a C2050) AND two dual slot Tesla M2090. The C2050 is 247 W, the two M2090 are 235 W, and the Quadro 4000 (single slot alternative to the the C2050) is 142 W - it would mean between 612W and 717W
I know these are PCI Express 2 cards, but there I am also considering a possible future scenario with PCI Express 3 configuration.
A different future scenario, with a Pascal-class P600 (single slot, 40W) or P2000 (also single slot, 75W), AND up to two Tesla P100 (dual slot, 250W), so a maximum total of 575W (if someone wonders why not a single Volta 100, huge price difference, a single volta 100 costs moch more than two tesla P100)
Thanks in advance for any help !