So I took my old pcs gpus out dual gtx 770s old I know but his PC is special to me as it was my uncle's and given to me when he past away a few weeks ago and I took out the cards to clean them and after putting back in the screen shows nothing after turning on and the light days LED VGA and the system now won't stay on for long I don't have really any money to spare on parts either but it's imperative that this system or at least case stay running it means the world to me as me and my uncle bonded through gaming and it's all I have left any help is much appreciated