Power management via DIMM read operation limiter

Details Power management via DIMM read operation limiter Power management via DIMM read operation limiter

2005-02-09

2008-09-16

Cao, Chun (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S323000, C713S340000, C711S100000, C711S105000, C711S154000

Reexamination Certificate

active

07426649

ABSTRACT:
A method and system for enabling directed temperature/power management at the DIMM-level and/or DRAM-level utilizing intelligent scheduling of memory access operations received at the memory controller. Hot spots within the memory subsystem, caused by operating the DIMMs/DRAMs above predetermined/preset threshold power/temperature values for operating a DIMM and/or a DRAM, are avoided/controlled by logic within the memory controller. The memory controller logic throttles the number/frequency at which commands (read/write operations) are issued to the specific DIMM/DRAM based on stored parameter values and tracking of outstanding operations issued to the memory subsystem devices.

REFERENCES:
patent: 7064994 (2006-06-01), Wu
patent: 2002/0041507 (2002-04-01), Woo et al.
patent: 2003/0093614 (2003-05-01), Kohn et al.
patent: 2003/0229821 (2003-12-01), Ma
patent: 2004/0260957 (2004-12-01), Jeddeloh et al.
patent: 2005/0289292 (2005-12-01), Morrow et al.

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