TWI512744B - Method for selecting memory sensor - Google Patents

Description

Memory sensor selection method

A method of selecting a sensor, and particularly relates to a method of selecting a memory sensor.

In general, the memory used in the server is divided into operating voltages of 1.35V and 1.5V. In order to determine whether the memory is operating at the appropriate operating voltage, a sensor is placed in the server, and the board management controller (BMC) is used to monitor the working voltage of the memory. When it is monitored that the memory is at an inappropriate operating voltage, the baseboard management controller records this event log and processes it accordingly.

Since the sensors in the server are often only configured one, and in order to avoid the event log of false alarms, the user will design the sensor's preset voltage sensing range to be large enough, for example, to sense The minimum threshold value (Threshold Value) of the preset voltage sensing range is set to 1.2V, and the maximum threshold is set to 1.7V. In this way, if the voltage value sensed by the sensor falls within the voltage sensing range (1.2V~1.7V), the substrate management controller considers that the aforementioned voltage value is a normal state, and does not trigger an event to notify the user. .

However, such an approach is undoubtedly risky. For example, a memory using a working voltage of 1.5V is now operating with a working voltage of 1.68V, which is a reasonable range. However, a memory using a 1.35V operating voltage, but now operating at 1.68V, is not a normal phenomenon. Because the aforementioned 1.68V still falls on the voltage sense Within the set value of the measurement range, the substrate management controller does not do anything. Therefore, there is still room for improvement in the configuration of the sensor of the memory.

In view of the above problems, the present disclosure provides a method for selecting a memory sensor, in which a sensor of a corresponding voltage safety range is given corresponding to different types of memory to prevent the memory from operating under an inappropriate voltage. It is easy to cause damage.

A method of selecting a memory sensor according to the present disclosure is applicable to a server having a plurality of types of memory of different types. The method of selecting this memory sensor includes the following steps. In the substrate management controller, a voltage safety range is preset for each memory. Turn off the memory sensor function of the memory management controller of the baseboard management controller and disable the memory sensor. Perform a boot self-test procedure for the basic I/O system. The basic input/output system detects the type of one of the memory configured by the server. The substrate management controller reads the type of the detected memory from the basic input/output system. The substrate management controller selects the voltage safety range corresponding to the detected memory according to the type of the read memory. The memory sensor read voltage function of the base management controller is activated. The memory sensor reads the detected voltage of the memory and compares the voltage and voltage safety range of the memory. When the detected voltage of the memory is not within the voltage safety range, the baseboard management controller issues a warning message.

In an embodiment, the step of comparing the voltage and voltage safety ranges of the memory includes the following steps. Check if the detected voltage of the memory is within the voltage safe range. When confirming that the detected voltage of the memory is within the voltage safety range, Then, it returns to the step of the memory sensor reading the detected voltage of the memory and comparing the detected voltage and voltage safety range of the memory. When it is confirmed that the detected voltage of the memory is not within the voltage safety range, the baseboard management controller issues a warning message.

In one embodiment, the substrate management controller includes a sensor data record, and the memory is defined in the sensor data record corresponding to the preset voltage safety range.

In one embodiment, the substrate management controller adjusts the setting of the scan bit in the sensor data record to turn off the voltage reading function of the memory sensor of the substrate management controller and disable the memory sensor. Or activate the voltage reading function of the memory sensor of the substrate management controller and enable the memory sensor.

The method for selecting a memory sensor according to the present disclosure, by detecting the type of the memory configured by the server, and selecting the voltage safety range corresponding to the type of the memory according to the type of the memory, and starting the corresponding memory The voltage reading function of the memory sensor of the type and enable the memory to read the voltage of the memory and determine whether the voltage of the memory is within the voltage safety range, thereby determining whether a warning message is generated. In this way, it is avoided that the voltage of the memory is not within the safe range of the voltage, and the memory still operates, and the damage is likely to occur.

The features and implementations of the present disclosure are described in detail below with reference to the drawings.

Please refer to "Figure 1" for a flowchart of the method for selecting the memory sensor of the present disclosure. The method for selecting a memory sensor of the present disclosure is suitable for operating in one There are different types of Dual In-Line Memory Modules (DIMMs) on the server (Server). The types of the memory respectively correspond to the working voltages of different memories, that is, the memory can support the memory of different working voltages at the same time.

In step S102, in the Baseboard Management Controller (BMC), a voltage security range is preset for each of the memories. That is to say, the memory inserted in the memory slot of the server has different working voltages, for example, 1.35V or 1.5V, that is, the user will preset the corresponding 1.35 in the substrate management controller. A V or 1.5V memory presets a voltage safe range.

For example, the voltage safety range of the memory corresponding to 1.35V is, for example, 1.2V to 1.4V; and the voltage safety range of the memory corresponding to 1.5V is, for example, 1.4V to 1.7V. The rest is analogous. Further, the substrate management controller may include a sensor data record (SDR), and the preset voltage safety range of the foregoing memory is defined in the sensor data record.

In step S104, the read voltage function of the memory sensor of the substrate management controller is turned off, and the memory sensor is disabled. That is, the substrate management controller initializes the scanning bit (Scanning Bit) in the memory sensor data record, for example, sets the scanning bit to “0” to turn off the reading of the memory sensor. Voltage function, and disables the sensing operation of the memory sensor.

In step S106, a Power On Self Test (POST) of a Basic Input Output System (BIOS) is executed. For example, when the server starts to operate, a central processing unit (CPU) executes a basic input/output system stored in a read only memory (ROM) to perform booting of the basic input/output system. Self-testing program.

Next, in step S108, the basic input output system detects the type of one of the memory configured by the server. In order for the server to operate normally, all memory slots on the server are plugged into the same type of memory, such as a memory corresponding to a working voltage of 1.35V or a memory corresponding to a working voltage of 1.5V. That is to say, the server can detect the type of the memory on the memory slot of the server through the basic input/output system, that is, the type of the memory is detected to correspond to the working voltage of 1.35V or the working voltage corresponding to 1.5V. .

Further, the memory configures the information code to identify the type of the memory, so in the startup self-test program phase of the basic input/output system, the basic input/output system reads the memory inserted in the memory slot through the central processing unit. The information code configured by the body is used to know the type of the memory, for example, a memory suitable for an operating voltage of 1.35 V or a memory suitable for an operating voltage of 1.5 V.

Next, in step S110, the substrate management controller reads the detected type of memory from the basic input/output system. For example, when the basic input/output system detects the type of the memory and the boot-up self-test program of the basic input/output system is completed, the basic input/output system transmits information about the type of the obtained memory to the baseboard management controller. The substrate management controller reads the type of the detected memory.

In step S112, the substrate management controller selects the voltage safety range corresponding to the detected memory according to the type of the read memory. For example, when the type of the memory read by the substrate management controller is an operating voltage corresponding to 1.35V, the substrate management controller selects a memory corresponding to the operating voltage of 1.35V, for example, in the sensor data record. The voltage safety range, for example, 1.2V~1.4V. When the type of the memory read by the board management controller is an operating voltage corresponding to 1.5V, the substrate management controller selects the voltage corresponding to the memory corresponding to the working voltage of 1.5V, for example, in the sensor data record. Range, for example, 1.4V~1.7V.

In step S114, the read voltage function of the memory sensor of the substrate management controller is activated, and the memory sensor is enabled. That is to say, the scanning management bit (Scanning Bit) in the substrate management controller, for example, the sensor data record, is set to "1", and the sensing operation of the memory sensor is enabled.

For example, when the type of the memory is an operating voltage corresponding to 1.35V, the substrate management controller sets the scan bit corresponding to the type of the memory in the sensor data record to "1", and enables the corresponding A memory sensor of the type of this memory performs a corresponding sensing operation.

On the other hand, when the type of the memory is an operating voltage corresponding to 1.5V, the substrate management controller sets the scan bit corresponding to the type of the memory in the sensor data record to "1", and enables the memory. The body sensor performs a corresponding sensing operation.

In step S116, the memory sensor reads the detected voltage of the memory and compares the voltage and voltage safety range of the memory. That is, after the substrate management controller enables the memory sensor, the memory sensor reads the detected memory. The voltage of the body and compare the voltage of this memory with the safe range of voltage.

For example, when the type of the memory is an operating voltage of 1.35V, the voltage safety range corresponding to the memory is, for example, 1.2V to 1.4V. Among them, 1.2V is the lowest threshold value of the voltage safety range corresponding to the memory corresponding to the operating voltage of 1.35V, and 1.4V is the highest threshold value of the voltage safety range corresponding to the memory corresponding to the operating voltage of 1.35V. . Therefore, when the memory sensor reads the voltage of the aforementioned memory, the voltage of the memory is compared with the safe range of 1.2V to 1.4V.

On the other hand, when the type of the memory is 1.5V, the voltage safety range corresponding to the memory is, for example, 1.4V to 1.7V. Among them, 1.4V is the lowest threshold value of the voltage safety range corresponding to the memory corresponding to the working voltage of 1.5V, and 1.7V is the highest threshold value of the voltage safety range corresponding to the memory corresponding to the working voltage of 1.5V. . Therefore, when the memory sensor reads the voltage of the aforementioned memory, the voltage of the memory is compared with the voltage safe range of 1.4V to 1.7V.

Next, in step S118, it is confirmed whether or not the detected voltage of the memory is within the voltage safety range. When it is confirmed that the detected voltage of the memory is not within the voltage safety range, the process proceeds to step S120, and the baseboard management controller issues a warning message to notify the user of the corresponding response mechanism.

On the other hand, when it is confirmed that the detected voltage of the memory is within the voltage safety range, the process returns to step S116, and the memory sensor reads the detected voltage of the memory again, and compares the voltage and voltage of the memory. Range to continuously monitor whether the voltage of the memory is still within the voltage safe range. In this way, according to different types of records Recalling the body, selecting the voltage safety range corresponding to the detected memory, and starting the voltage reading function of the memory sensor corresponding to the detected memory and enabling the memory sensor to effectively avoid the voltage of the memory The memory is still not operating within the voltage safety range, and the substrate management controller does not issue a corresponding warning message, which may cause memory damage.

The method for selecting a memory sensor according to the embodiment of the present disclosure, by detecting the type of the memory configured by the server, and selecting the voltage safety range corresponding to the type of the memory according to the type of the memory, and starting the corresponding The memory reading function of the memory sensor of the type of the memory and enabling the memory sensor to read the voltage of the memory and determine whether the voltage of the memory is within the voltage safety range, and thereby determining Whether to generate a warning message. In this way, it is avoided that the voltage of the memory is not within the safe range of the voltage, and the memory still operates, and the damage is likely to occur.

The present disclosure is disclosed in the foregoing embodiments, and is not intended to limit the disclosure. Any subject matter of the present invention can be modified and retouched without departing from the spirit and scope of the disclosure. The scope of patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

FIG. 1 is a flow chart of a method for selecting a memory sensor according to the present disclosure.

Claims (4)

A method for selecting a memory sensor is applicable to a server having a plurality of types of memory, the method of selecting the memory sensor includes: in a substrate management controller, for each of the The memory respectively presets a voltage safety range; turns off the read voltage function of a memory sensor of the substrate management controller, and disables the memory sensor; performs a self-test of a basic input/output system a program; the basic input/output system detects a type of one of the memories configured by the server; the substrate management controller reads the detected type of the memory from the basic input/output system; the substrate management control Selecting the detected voltage security range corresponding to the memory according to the type of the read memory; starting the read voltage function of the memory sensor of the substrate management controller, and enabling the memory a body sensor; the memory sensor reads the detected voltage of the memory, and compares the detected voltage of the memory with the safe range of the voltage; When the voltage of the memory voltage is not within the safe range, the BMC issues a warning message. The method for selecting a memory sensor according to claim 1, wherein the step of comparing the voltage of the memory with the safe range of the voltage further comprises: Confirming whether the detected voltage of the memory is within the safe range of the voltage; when confirming that the detected voltage of the memory is within the safe range of the voltage, returning to the memory detected by the memory sensor The voltage of the body, and comparing the detected voltage of the memory with the safe range of the voltage; and when it is confirmed that the detected voltage of the memory is not within the safe range of the voltage, the baseboard management controller issues the warning message. The method for selecting a memory sensor according to claim 1, wherein the substrate management controller comprises a sensor data record, wherein the memory corresponds to the preset voltage safety range defined in the sensor data record. in. The method of selecting a memory sensor according to claim 3, wherein the substrate management controller adjusts a setting of a scan bit in the sensor data record to turn off the memory sense of the substrate management controller. The voltage reading function of the detector disables the memory sensor or activates the voltage reading function of the memory sensor of the substrate management controller and enables the memory sensor.