Fully-buffered memory-module with redundant memory buffer in...

Details Fully-buffered memory-module with redundant memory buffer in... Fully-buffered memory-module with redundant memory buffer in...

2006-07-24

2008-05-27

Elms, Richard T. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Testing

C365S063000, C365S051000

Reexamination Certificate

active

07379361

ABSTRACT:
A repairing fully-buffered memory module can have memory chips with some defects such as single-bit errors. A repair controller is added to the Advanced Memory Buffer (AMB) on the memory module. The AMB fully buffers memory requests that are sent as serial packets over southbound lanes from a host. Memory-access addresses are extracted from the serial packets by the AMB. The repair controller compares the memory-access addresses to repair addresses and diverts access from defective memory chips to a spare memory for the repair addresses. The repair addresses can be located during testing of the memory module and programmed into a repair address buffer on the AMB. The repair addresses could be first programmed into a serial-presence-detect electrically-erasable programmable read-only memory (SPD-EEPROM) on the memory module, and then copied to the repair address buffer on the AMB during power-up.

REFERENCES:
patent: 5765198 (1998-06-01), McCrocklin et al.
patent: 5970008 (1999-10-01), Zagar et al.
patent: 6052798 (2000-04-01), Jeddeloh
patent: 6081463 (2000-06-01), Shaffer et al.
patent: 6819608 (2004-11-01), Watanabe
patent: 7053470 (2006-05-01), Sellers et al.
patent: 6996766 (2006-07-01), Cypher
patent: 2006/0092726 (2006-05-01), Parekh
patent: 2007/0300104 (2007-12-01), Thayer

Affiliated with

Also associated with

Rating

Fully-buffered memory-module with redundant memory buffer in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fully-buffered memory-module with redundant memory buffer in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fully-buffered memory-module with redundant memory buffer in... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3982917