How do I use a PCI riser to fix problems on certain rare desktop PC motherboards?
If you are using the KeyCarbon Raptor on a desktop PC (rather than a laptop) and the card does not record properly, you can try the following solution. Certain rare motherboards switch off the data signals to unused PCI slots. This is to enhance the EMC (ElectroMagnetic Compatibility) rating of the motherboard by reducing stray radio signals produced by unused PCI slots. As the KeyCarbon Raptor card is 100% passive (ie: it never drives signals onto the PCI bus) it is effectively invisible to the motherboard. The motherboard then switches off data signals to the PCI slot occupied by the KeyCarbon Raptor card. This KeyCarbon Raptor is then unable to record any data from this slot. The solution is to piggyback signals from a legitimate PCI card, such as any RS232, parallel port, USB, firewire or modem PCI card. Insert a PCI riser card, insert the legitimate PCI card into a spare slot on the PCI riser, then insert the KeyCarbon Raptor into the other slot on the PCI riser. Because the compu