Re: Will this setup work for my first mining rig? (Diagram included)

Is it ok if I use one VGA cable to power a gpu and the riser for another gpu all on the same cable?

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-snip- your colleague used sata cables to connect to gpus or risers? arent sata cables inadviseable because they rated for a low power consumption? im not trying to use sata connections at all. just vga pcie 6+2/6 pin cables to power on my gpus (the 6+2 pin for my gpu and the 6 pin for the riser of the gpu above it).

He definitely mean risers (Sata to 4/6-pin adapter).

∙ Sata power cables are the same as the 4-pin molex or the GPU cables except for the connector.
∙ Some PSUs have the same output for the all 12v rail; and some low-quality ones have a dedicated rail for the GPU cables, low power for other peripherals; so the "rated for low power consumption" isn't an issue for your 80+ bronze rated PSU.

Yes, not adviceable because the pins are too thin and small so it has a lot of resistance that can produce a lot of heat if the current is too strong,
result: the connector (not the wires) will burn; but it's rare.
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Quote from: philfromqueens on August 15, 2019, 01:13:11 AM

so i got around to min maxing my overclock settings today and i noticed that on 3 gpus that they put out 31.2 mh/s at +895 mem clock but at +900 they each drop to 28.7 mhs. Is this some sort of a throttling? i find it strange that they would drop so much at a hard limit while my 3 other gpus all crash before the +895 mark.

The "throttling" GPU must be reaching high temperature and those that crash aren't stable.
"Silicon Lottery".