Connecting GTX 750ti to Laptop externally

elmenhorster

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Nov 4, 2011
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Hi everybody,

I have external PCIe slot ready. I just wanted to know if GTX 750ti will require a separate PSU or will I get away with a basic power cord. The reason I ask is, because TDP of this graphics card is only 60w.
 
Solution




I talking about two power cords: one for laptop and other for eGPU.
I've found the answer https://www.youtube.com/watch?v=EpOPSoXt32E
This guy uses AC adapter, if it was over 220w I'd need PSU.
Thanks for help everyone. Case closed.
Interesting article. Although he's using overclocked with two fans.

It also states the following: "Alternatively, you may only need a power brick similar to what powers your laptop. Take Nvidia’s GTX 650 Ti graphics card, which requires 110 watts of power, according to Nvidia’s specs. Nando advises that your PSU needs about 15 percent more power than the card (not the system) requires, meaning a 110 Watt card needs a PSU with a minimum of 127 Watts."

That means if GTX 750ti is 60w. Then I only need power "brick" (90w output) similar to what powers my laptop. Why do I need a PSU overkill?
 




I talking about two power cords: one for laptop and other for eGPU.
I've found the answer https://www.youtube.com/watch?v=EpOPSoXt32E
This guy uses AC adapter, if it was over 220w I'd need PSU.
Thanks for help everyone. Case closed.
 
Solution
+1 for mcnumpty23. I'd rather use a PSU too. There are lots of good quality inexpensive PSUs to power that up. Power bricks heat up a lot too. I get electric shocks when touching my two year old laptop's power brick.
 


thanks

and yes a psu is also better designed to deal with the heat produced

but you shouldnt get electric shocks from a laptop charger thats not right