Check to be sure your jumper settings are correct on that Combo card, but you say you have new ram? From Softhut? It's possible that your 4mb SIMM is bad. I bought 3 SIMMS from them a little while back and one was defective. Froze the system, just as you are experiencing. Not a big deal. E-mail Joe and tell him the problem. He'll have you send it back for replacement is all.