Lets imagine a scenario, where i want to plug 8 GPU, the Sapphire Nitro+ RX 480 8G, then i have 8 risers, 1 Motherboard, 1 CPU and 1 SSD.
Considering the Nitro+ says on Sapphire site that card suck 225W, in worst scenario i guess, this number come from:
- PCI-E slot max (75W)
- 8-Pin PCI-E cable max (150w)
- 225W total
Then, (75Wx4)+(150Wx4)=300W Riser+600W PCI-E=900W
So a 1200W PSU can be used to power up 4 GPUs, and i can use another 1200W PSU to power the rest 4 GPU, 1 motherboard, 1 CPU and 1 SSD.
BUT, my question is, what can go wrong? Theres a sense pin on PCI-E connectors, can be a problem? One PSU can fight another to regulate +12V? Or any kind of interference?
My assumptions are right? How much in real world Nitro+ can consume?
Considering the Nitro+ says on Sapphire site that card suck 225W, in worst scenario i guess, this number come from:
- PCI-E slot max (75W)
- 8-Pin PCI-E cable max (150w)
- 225W total
Then, (75Wx4)+(150Wx4)=300W Riser+600W PCI-E=900W
So a 1200W PSU can be used to power up 4 GPUs, and i can use another 1200W PSU to power the rest 4 GPU, 1 motherboard, 1 CPU and 1 SSD.
BUT, my question is, what can go wrong? Theres a sense pin on PCI-E connectors, can be a problem? One PSU can fight another to regulate +12V? Or any kind of interference?
My assumptions are right? How much in real world Nitro+ can consume?