DEVICE AND METHOD FOR CONTROLLING REFRESH RATE OF MEMORY
First Claim
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1. A control device for adjusting a refresh rate of a memory module in a computer system, comprising:
- a thermo sensor integrated into the memory module for actively outputting a temperature change signal in response to the temperature change in the memory module; and
a control circuit electrically connected to the memory module and said thermo sensor for adjusting a refresh period for refreshing the memory module in response to the temperature change signal.
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Abstract
A control device and method are used for adjusting the refresh rate of a memory module in a computer system. The device includes a thermo sensor and a control circuit. In the control method, the thermo sensor actively outputs a temperature change signal in response to the temperature change in the memory module when a capacitor of the memory module incurs an aggravated current leakage due to the temperature rise. Next, the control circuit adjusts the refresh rate in response to the temperature change signal and refreshes the memory module at the refresh rate.
17 Citations
19 Claims
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1. A control device for adjusting a refresh rate of a memory module in a computer system, comprising:
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a thermo sensor integrated into the memory module for actively outputting a temperature change signal in response to the temperature change in the memory module; and a control circuit electrically connected to the memory module and said thermo sensor for adjusting a refresh period for refreshing the memory module in response to the temperature change signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control apparatus, for adjusting a refresh rate of a dynamic random access memory (DRAM) module in a computer system, comprising:
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a thermo sensor integrated into the DRAM module for actively outputting a temperature change signal when a capacitor of the DRAM module incurs leakage current due to the temperature change; and a control circuit electrically connected to the DRAM module and said thermo sensor for adjusting a refresh period for refreshing the DRAM module in response to the temperature change signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A control method for adjusting a refresh rate of a memory in a computer system, said computer system comprising a DRAM module, a thermo sensor integrated into the DRAM module and a control circuit disposed in a chipset;
- the control method comprising steps of;
the thermo sensor actively outputting a temperature change signal when a capacitor of the DRAM module incurs leakage current due to the temperature change; and the control circuit refreshing the DRAM module once every refresh period which is adjusted in response to the temperature change signal. - View Dependent Claims (16, 17, 18, 19)
- the control method comprising steps of;
Specification