Lenovo (singapore) Pte. Ltd.

International Business Machines Corporation

Toshiaki Fukushima

Taichiroh Nomura

Jun Tanaka

Masahiko Nomura

Yohichi Matsui

Shigeru Ohshita

Shinji Ohishi

A program for a setting device for setting a memory control device which, in part, acquires memory attribute information indicating an attribute of the memory module, a data transfer rate setting value as a rate of an upper limit value of a data transfer rate relative to a maximum data transfer rate, an upper limit value of the data transfer rate being at which the memory control device accesses the memory module, and the maximum data transfer rate being at which the memory control device is able to access the memory module. The setting device can appropriately control the heating value and the upper limit temperature for each of the plurality of memory modules mutually different in type though mutually compatible.

Setting device program and method for setting a memory control

A system includes a CPU, a stor for storing a process executed for lowering the temperature of the CPU in association with a set temperature, a first temperature sensor for measuring a measurement temperature of a measurement position in the CPU, a second temperature sensor for detecting that a detection position in the CPU has reached a detection temperature, an offset calculator for calculating an offset as a difference between the detection temperature and the measurement temperature, a set temperature corrector for calculating a correction value of the set temperature stored by the temperature control information stor based on the offset, and a temperature control executor for executing the temperature control process in association with the set temperature in the case where the measurement temperature has reached the correction value of the set temperature. System specific thermal management data is stored in a nonvolatile memory for retrieval following system initialization.

Thermal management set-temperature correction for individual system

A memory access control apparatus, which is employed for a computer system in which an expansion memory can be installed in addition to a standard memory and which controls the access to the memory by one or more signal lines, comprises an identification circuit for reading identification data of the installed expansion memory, a determination circuit for determining the optimal output current values for the signal lines based on the identification data; and a memory controller for adjusting the output current values of the signal lines based on the results obtained by the determination means. Even when multiple types of expansion memories (DIMM cards) whose memory capacities and memory chip arrangements are different are installed, the waveforms and the timings for the output signal lines (RAS, CAS, WE, and MA) of the memory controller can be dynamically compensated for.

Method and apparatus for adjusting output current values for expansion

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Yamato, Japan

Toshiaki Fukushima