The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1998
Filed:
Mar. 13, 1997
Paul Gordon Robertson, Austin, TX (US);
Robert Lisin Tung, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A process and implementing system is provided for conducting a memory test for isolating and identifying failed cache memory modules in a memory subsystem of a computer system. The methodology initially selects 303 a block of memory which is twice the size of the cache 105 being tested. The cache 105 is then disabled 305 and a first test is performed 307 on the selected block of to isolate byte addresses of individual bit failures. If bit failures are detected 308, the appropriate byte address is mapped 310 and the test is ended 321. If no bit errors are detected in the first test, the cache is enabled 309 and a second test is performed and the block is tested 311 for failures. Any detected failures are assumed to be cache failures and the appropriate byte address is mapped 315. The cache is again disabled 317. An appropriate message is then displayed 319 to indicate the results of the testing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile