Externally Powered GPU

[Snakeblood]

So after upgrading my computer to support my new RTX 2070, I expected my old PSU to support all my new components, including my old GTX 1070. Of course, after turning on my computer several times, I was met with something along the lines of "Could not start computer using Overclock settings," though I had not set OC settings yet. This led me to assume that the GPUs were pulling too much power, and therefore would not allow my PC to start. Now the plan is to avoid buying another PSU, whether it'll power my whole computer, or just one of the GPUs. I was wondering if there are any known ways, besides hot-wiring a spare PSU, to power my GPU using another outlet in the wall, or if I'm better off just buying a new PSU and rewiring my new build.

[Spoiled_Kitten]

2 minutes ago, Snakeblood said:

So after upgrading my computer to support my new RTX 2070, I expected my old GPU to support all my new components, plus my old GTX 1070. Of course, after turning on my computer several times, I was met with something along the lines of "Could not start computer using Overclock settings," which I had not set. This led me to assume that the GPUs were pulling too much power, and was not allowing my PC to start. Now the plan is to avoid buying another PSU, whether it'll power my whole computer, or just one of the GPUs. I was wondering if there are any known ways, besides hot-wiring a spare PSU, to power my gpu using another outlet in the wall, or if I'm better off just buying a new PSU and rewiring my new build.

i think your better off buying a new one, build your pc on pc part picker then see if the power consumption is to high for the psu you have and if it is get a new one otherwise it may be the MB may not be able to power it

[Snakeblood]

16 hours ago, Spoiled_Kitten said:

i think your better off buying a new one, build your pc on pc part picker then see if the power consumption is to high for the psu you have and if it is get a new one otherwise it may be the MB may not be able to power it

I've added up the estimated wattage, and the extra GPU, and it's under the wattage rating on my psu. It's possible that I had some settings wrong when I was first booting it up. I'll have to tear down my setup and try running it with both GPUs again. Thank you for your suggestion, and if my testing does not turn out well, then I will need to purchase another PSU.

[Spoiled_Kitten]

9 hours ago, Snakeblood said:

I've added up the estimated wattage, and the extra GPU, and it's under the wattage rating on my psu. It's possible that I had some settings wrong when I was first booting it up. I'll have to tear down my setup and try running it with both GPUs again. Thank you for your suggestion, and if my testing does not turn out well, then I will need to purchase another PSU.

wait if its dual gpu they need to be the same,

[Snakeblood]

13 hours ago, Spoiled_Kitten said:

wait if its dual gpu they need to be the same,

I know, PC Part Picker will not allow two different GPUs on their builder, but they will not be connected through SLI, so it should work. I will use one for gaming, and the other for alt-coin mining, or video encoding. Now I don't know if this will affect their bus speeds, since my Motherboard's Manual lists different speeds for dual connections, but I just assume that means SLI or Crossfire.

All that's left for me to do is wait for my shipment to arrive (power cable), and run some tests to see if it's maintainable heat-wise. Maybe I'll need a new CPU cooler too lol

Edited March 20, 2020 by Snakeblood

[Spoiled_Kitten]

On 3/21/2020 at 1:03 AM, Snakeblood said:

I know, PC Part Picker will not allow two different GPUs on their builder, but they will not be connected through SLI, so it should work. I will use one for gaming, and the other for alt-coin mining, or video encoding. Now I don't know if this will affect their bus speeds, since my Motherboard's Manual lists different speeds for dual connections, but I just assume that means SLI or Crossfire.

All that's left for me to do is wait for my shipment to arrive (power cable), and run some tests to see if it's maintainable heat-wise. Maybe I'll need a new CPU cooler too lol

no no no, that will  be terrible way better to have 21 pcs or 1 graphics card or switch them out, dont do that!

[Zando_]

What PSU are you running? And what CPU/Mobo combo?