Easily-upgradable computer and CPU board therefor

  • US 5,678,011 A
  • Filed: 04/05/1995
  • Issued: 10/14/1997
  • Est. Priority Date: 04/20/1994
  • Status: Expired due to Term
First Claim
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1. A central processing unit (CPU) board for a computer having a main board not containing a CPU, said CPU board comprising:

  • a printed circuit board having a wiring pattern;

    a CPU mounted on a first major surface of said printed circuit board, said CPU having a plurality of terminals and being operative in accordance with an externally generated clock signal received through certain of said terminals;

    means for removably coupling and electrically connecting said CPU board to said main board of said computer; and

    a jump setting circuit including a plurality of jump switches, each of said jump switches being set in predetermined accordance with an operational specification of said CPU so as to control a clock controller on said main board to produce said clock signal suitable for said CPU,wherein said jump setting circuit and said terminals of said CPU are electrically connected to said connecting means by said wiring pattern, said CPU thereby receiving said clock signal produced by said clock controller on said main board via said connecting means.

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