Gigabyte GV-N28-1GH-B-GA Manual - Page 6

The GV-N28-1GH-B graphics card is a performance optimized high-end card. Power is taken from the PCI Express host bus as well as the 8-pin and 6-pin PCI Express power connectors. Without auxiliary power provided to the GV-N28-1GH-B graphics card, an LED on the bracket goes red and the graphics card will not boot. In addition, the connector that is not adequately powered will turn red. The table below outlines the different possible scenarios as well as the resulting behaviors. Configuration with External PCIe Connectors: 8-pin PCIe Power 6-pin PCIe Power Connector Connector Connected Connected Not Connected Connected Connected Not Connected Not Connected Not Connected Result Full Power LED light is red- graphics card will not boot LED light is red- graphics card will not boot LED light is red- graphics card will not boot We suggest you using a power supply that provides a 8-pin PCI Express power cable instead of using the included 8-pin power adapter. If you want to use the included 8-pin power adapter, make sure at least 12V/15A current is supplied to each 4-pin power connector on this adapter. Failure to do so may jeopardize the stability of the graphics card. 8-pin Power Adapter Requires: At least 12V current rating of 15A Requires: At least 12V current rating of 15A Incorrect Connection (The two 4-pin power connectors on the adapter are connected to the same system power supply cable.) GV-N28-1GH-B Graphics Accelerator - 6 - Correct Connection (The two 4-pin power connectors on the adapter are connected to two independent system power supply cables.)