Quote Originally Posted by SKYMTL View Post
I agree but that doesn't always happen. PCI-E slot power for the 2.0 spec is rated "up to" 150W, hence why some mobo makers have used auxiliary power connectors on their boards for the slot while retaining the PCI-E certification.

However, as I have said in the past: the 75W spec is usually adhered to in order to guarantee backwards compatibility.


Motherboard makers add an auxiliary power connectors,because if they didn't the PCB would need to be more complex,with lots of wide traces to accommodate for high current,adding an auxiliary connector is nothing but a cost cutting feature,in some cases it's done on boards that are meant for benching,because everything is being pushed out of spec.

What you saying makes zero sense to me:"75W spec is usually adhered to in order to guarantee backwards compatibility",PCI-E 2.0 is backwards compatible with PCI-E 1.0 all you need to adhere to is 2.0 standard and it will be compatible. All PCI-E 1.0 devices will work in PCI-E 2.0 slots.

Abandon ship ?