Quote:
Originally Posted by kingpage 
I'm quoting directly an indirect quote from this link. Unkown source, but it seems reliable enough.
http://www.xbitlabs.com/articles/multimedia/display/asus-xonar-essence-stx_3.html
That's why there's a direct connection to the power supply. You slyly ignored the first sentence of that paragraph.
Quote:
The card needs additional power via a standard Molex connector (like the connector you use for PATA drives). ASUS’ engineers claim that the PCI Express x1 slot cannot ensure enough current to power such high-quality components as are installed on the Xonar Essence STX and is too susceptible to current ripple and electromagnetic interference.
Has nothing to do with EMI or RFI, or even the performance of the actual card because it's powered by molex.
