I was pulling 750W from the wall, and my 850W Toughpower Grand was handling it fine.
Just running a bit toasty, and I'm thinking closer to a 50% load would be more efficient...
So, I gank all my mixed bag of AMD/NVidia from this rig and replace with Qty8 1050ti.
That got my power down to 550W. I was dumb and happy and dumb and what's that
strange burning smell?
Well, turns out I totally melted one of the 6pin peripheral sockets on the supply, and
another showed signs of nearly getting zorched as well. Didn't exactly kill the supply,
just ruined one connector and filled the house with stinky burning plastic smell.
Just cause you CAN power four risers from the same SATA daisychain power cable
don't mean you ever should. Three is working right now, but I probably need to pare
it down no more than two...
See, I got these fancy new 6pin risers that run on 12V only, with a little DC-DC buck
to provide 5V. Which is probably exactly what you want and need for 6pin 12V supply.
Not what you want for SATA power...
The peripheral connector does not dedicate three of six pins to 12V. No, only seems
to give one pin to 12V. The rest are 5V and GND. Since 6pin risers don't use 5V from
SATA adaptors, four 1050ti's pull every bit of 275W from just ONE 12V peripheral pin.
And of course, that's the pin that burns...
The moral of this story is never power more than two 6pin risers loaded with1050ti's
from one SATA peripheral cable. Maybe three is OK if you got 4pin molex risers that
accept some current on the 5V wire as well.
If your GPUs won't accept power from the top. Plug a real 6pin PCIe cable directly
into the riser. This gives three wires and three pins of 12V at both ends of the cable.
Just running a bit toasty, and I'm thinking closer to a 50% load would be more efficient...
So, I gank all my mixed bag of AMD/NVidia from this rig and replace with Qty8 1050ti.
That got my power down to 550W. I was dumb and happy and dumb and what's that
strange burning smell?
Well, turns out I totally melted one of the 6pin peripheral sockets on the supply, and
another showed signs of nearly getting zorched as well. Didn't exactly kill the supply,
just ruined one connector and filled the house with stinky burning plastic smell.
Just cause you CAN power four risers from the same SATA daisychain power cable
don't mean you ever should. Three is working right now, but I probably need to pare
it down no more than two...
See, I got these fancy new 6pin risers that run on 12V only, with a little DC-DC buck
to provide 5V. Which is probably exactly what you want and need for 6pin 12V supply.
Not what you want for SATA power...
The peripheral connector does not dedicate three of six pins to 12V. No, only seems
to give one pin to 12V. The rest are 5V and GND. Since 6pin risers don't use 5V from
SATA adaptors, four 1050ti's pull every bit of 275W from just ONE 12V peripheral pin.
And of course, that's the pin that burns...
The moral of this story is never power more than two 6pin risers loaded with1050ti's
from one SATA peripheral cable. Maybe three is OK if you got 4pin molex risers that
accept some current on the 5V wire as well.
If your GPUs won't accept power from the top. Plug a real 6pin PCIe cable directly
into the riser. This gives three wires and three pins of 12V at both ends of the cable.
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