Changes

The faulty existing motherboard CN-OP611C-13740-7CG-01LQ for this Dell XPS 720 PC has been replaced with [https://www.ebay.co.uk/itm/Dell-P611C-XPS-720-Socket-LGA775-Motherboard-No-BP/162599420743?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Dell P611C XPS 720 Socket LGA775 Motherboard] - CN-OP611C-13740-7CF-0031 and [http://www.bios-chip24.com/EVGA-nForce-680i-SLI-Black-Pearl-122-CK-NF69/en BIOS Chip] has been swapped. Currently, it has motherboard No: CN-OP611C-13740-7CG-01A7 installed and not working with steady amber light on power LED.