I'm not sure this question belongs here. I slaved a hard drive to my computer to clean out garbage. Now I've installed it back in HP Pavilion 525c. The normal startup screen hits for just a second, the I get: PXE-E61 media test failure, check cable and PXE-M0F Exiting NVIDIA boot agent AND Reboot and select proper Boot device or Insert boot media in selected boot device and press a key. I appreciate anything you can give me.