Hi, I recently installed a gtx 560 1gb GPU which need two 6pin input but my 450W PSU has only one 6pin. So I used a single molex to 6pin power adapter and the PSU 6pin to give power to my GPU. However display shows no data signal. GPU fans are working, I cconnected the monitor VGA cable to the GPU VGA port. I disable intel hd graphics via device manager, i enabled power to the PCI slot via BIOS nothing worked. I even reset the BIOS settings but nothing. If sosomeone can help me I will owe to them. Thanks.