My Pc Express 2.0 x16 slot is limited to a mere 25w!
This would lead me to going with something like the radeon hd 6450, but honestly, I was looking at much better cards.
My question is:
Can I create a workaround to this wattage limit?
By using a second externally located power supply?
By diy eGPU using a Pci to express card adapter (is the performance going to be limited?)?
I am picturing simply buying an adequately rated power supply (with long power cables) kept outside my pc enclosure, using it to power the gpu that would be located INSIDE my pc on the only x16 slot I have... But I have no idea how the card is actually powered or where the 25w limit is taking effect (through the slot or the power supply)?
As far as I know its 75 watts. And cards that need more power than that get there power from the power supply through six pin PCIe power cables. So what you actually need to look at is if your power supply is strong enough to provide the rated wattage to the card. You also need to make sure the card fits in the case. But I'm pretty sure this external power supply thing is totally unnecessary. If you do need a stronger power supply you'd just replace the power supply and that one power supply will power the whole pc.