Method and system for detecting number of memory banks on circuit board

A technology for detecting circuits and memory sticks, which is applied in the computer field and can solve the problems of affecting the startup speed of computer systems and the low efficiency of SPD information.
CN106547655AActive Publication Date: 2017-03-29广东龙芯中科电子科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
广东龙芯中科电子科技有限公司
Publication Date
2017-03-29

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Abstract

The invention provides a method and a system for detecting the number of memory banks on a circuit board. A detection pin of each memory slot is electrically connected to a platform controller hub PCH, so as to output a detection signal for detecting whether a memory bank is inserted in the memory slot to the PCH. The method comprises the following steps: receiving the detection signal from each memory slot by the PCH; determining actual insert status information of whether the memory bank is inserted in each memory slot by the PCH according to the detection signal, and notifying a BIOS (Basic Input Output System) of the actual insert status information; and when the actual insert status information represents that the memory slot in which the memory bank has been inserted exists, then controlling the PCH to read SPD (Serial Presence Detect) information of a memory bank on the designated memory slot from a memory slot address designated by the actual insert status information by the BIOS. The method for detecting the number of the memory banks on the circuit board provided by the invention can effectively improve the acquisition speed of the SPD information, thereby effectively improving the starting speed of a computer system.
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Description

technical field

[0001] The invention relates to computer technology, in particular to a method and system for detecting the number of memory bars on a circuit board. Background technique

[0002] Basic Input Output System (abbreviated as: BIOS) is a set of programs solidified on a read-only memory (ROM) chip on the motherboard of the computer. When the computer system starts, the first The BIOS needs to be run to configure the parameters needed for the computer system to run. Therefore, the running speed of the BIOS directly affects the startup speed of the computer.

[0003] With the development of computer technology, in order to improve the performance of the processor, it is often necessary to increase the memory capacity, that is, more memory sticks need to be inserted on the computer motherboard, so the number of memory slots on the computer motherboard also increases thereupon. When the computer is started, the BIOS needs to read the serial presence detection (Serial...

Claims

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