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The Question is: I have an Mvax 3800 (KA655 CPU board) that was working properly before I brought it home... After power on, nothing happens at the console. If I press break, I get the console prompt but a "show device" says "?20 CORRPTN". If I do a "show qbus" it lists all cards (TKQ70, KDA50 and DESQA) and dumps saying "Scanning QBUS memory space". A "show memory" cmd says "0 MB ...". There is two memory cards, and I have even tried to replce them both with two other cards. No change. On power on, the LED's goes "F->6" and stops. Hope to get some help so this old beast can continue to live a prosperous life (it has two RA92 disks full of goodies ...) and I plan to get a VMS hobbyist license soon. Best regards An old but faithful DEC customer Anders The Answer is : There is not enough information to determine what happened here. This could be anything from a hardware problem or disk failure, to a loose module or cable, to a corrupted disk. Search for information on "serpentine" here in Ask The Wizard to determine if the Q-bus is correctly configured, and how to correctly configure it. Also check for any disconnected cables and for any modules that may have become loose during the shipping and handling of the system. Also see the OpenVMS Frequently Asked Question (FAQ) for pointers to websites with MicroVAX Q-bus hardware information.
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