How to reset the sapphire vapor-x hd 4850 red light Tags: Graphics Cards Sapphire Light HD Graphics Last response: March 30, 2010 2:53 AM in Graphics & Displays Share Anonymous a b U Graphics card March 29, 2010 10:07:33 PM Hello, Have a Sapphire Vapor-X HD 4850 video card. It keeps "locking up", with screen going blank and red light on top of vid card. What's the problem, and is there a way to reset it without powering down my whole system? More about : reset sapphire vapor 4850 red light darkguset March 30, 2010 2:53:35 AM Have you connected the extra power cable? This could also indicate an overheating problem m 0 l Can't find your answer ? Ask ! Publish Related resources 2 Red Lights on Sapphire Radeon HD 4850X2 Forum HD4850 Red light error Forum ATI Radeon HD 4850, 2 Red Lights, No Display Forum More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !