Repairing advanced-memory buffer (AMB) with redundant memory...

Details Repairing advanced-memory buffer (AMB) with redundant memory... Repairing advanced-memory buffer (AMB) with redundant memory...

2008-11-21

2009-11-17

Nguyen, Dang T (Department: 2824)

Static information storage and retrieval

Read/write circuit

Testing

C365S230080, C365S185220

Reexamination Certificate

active

07619938

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: 2007/0058471 (2007-03-01), Rajan et al.
patent: 2007/0121389 (2007-05-01), Wu et al.

Affiliated with

Also associated with

Rating

Repairing advanced-memory buffer (AMB) with redundant memory... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Repairing advanced-memory buffer (AMB) with redundant memory..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Repairing advanced-memory buffer (AMB) with redundant memory... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4084091