CN105468363A - Method for enhancing compatibility of server mainboard and different network cards - Google Patents

Abstract

The invention discloses a method for enhancing the compatibility between a server main board and different network cards, which belongs to a method for enhancing the compatibility between the main board and network cards. question. The steps of the present invention are as follows: (1), according to the matching of different numbers or types of network cards on the main board of the server, and the phenomenon of restarting after the system is shut down, check the voltage waveform during the normal shutdown process of the system; (2), if it is found during the shutdown process The connection time of the voltage conversion is long, which leads to the situation that the signal voltage of the control switch is lowered during the voltage conversion, and then proceed to the next step; (3), by shortening the shutdown process, the MOS tube that controls the timing of the entire conversion circuit is turned off Time, to shorten the voltage conversion connection time during the shutdown process; (4), to ensure that the input voltage and output voltage are always within the normal voltage application range during the conversion process.

Description

A Method of Enhancing the Compatibility of Server Motherboard and Different Network Cards

technical field

The invention relates to a method for enhancing the compatibility between a mainboard and a network card, in particular to a method for enhancing the compatibility between a server mainboard and different network cards.

Background technique

When engaging in server design, it is often found that large-scale server motherboards are designed with a lot of voltage. Including: before power-on, normal start-up operation, and after system shutdown. For any state, usually in the design process, there will be different conversion circuits, which can not only save energy but also ensure the maximum efficiency, and also prevent uncertain factors in the working process of the board from causing damage to the board. The voltage required by the network card is converted from the power supply lines of different architectures in different on-off states of the server motherboard and power supply.

The power supply conversion stability of the network card in different states is affected by timing and light/heavy load, among which: the timing is jointly controlled by the server motherboard 12V and P12V, and the light/heavy load of the network card depends on the network card model and the number of network cards.

If the power of the network card is large or the number of network cards is large, the load of the network card will be heavy, and the input voltage of the network card may be pulled to a low level when the voltage conversion of the network card is realized, resulting in the system shutting down and restarting.

Usually server circuit boards will be equipped with corresponding network cards, but it is not ruled out that individual boards are not designed with fixed network cards due to reasons such as mechanism, power supply design, space, application requirements, etc., and use other types of high-power network cards or The user configures multiple network cards by himself, which is more likely to cause the system to shut down and restart.

In the prior art, Fig. 1 shows the power supply conversion diagram for the network card from the server main board, wherein: 12V, P12V and P3V3-AUX3 are the voltages transferred by the server main board, and P3V3-AUX3 is the network card only before power-on and after the system is shut down Power supply, the network card power supply is provided by P3V3-AUX2 after normal startup. Figure 2 shows the logical relationship diagram of the switch signal PS-ON of the server main board controlled by P3V3-AUX3. When AUX3 is at low level, PS-ON is at high level, and the system is turned off by default. After the test, the voltage waveforms of P3V3-AUX, P3V3-AUX2, P3V3-AUX3 and Gate during the normal shutdown of the system were obtained. When the Gate voltage dropped to 5.4V during the normal shutdown of the system, the connection transition time existed from N-MOS Q3 off to Q4 on. About 10.6ms. It can be seen from the waveform that the load of the network card is heavy. Therefore, when the system is turned off, the network card voltage P3V3-AUX drops quickly, and the vacuum time after Q3 is turned off and before Q4 is turned on is longer, causing the conversion voltage P3V3-AUX3 to be pulled down to 2.93V at the moment of Q4 turning on, which exceeds the minimum voltage of the specification 3.135V, PS-ON becomes high level at this time, and the system defaults to shutdown; when the output capacitor C1 is fully charged, P3V3-AUX3 returns to normal voltage, and PS-ON becomes low level again at this time, the system considers Power-on signal, causing a restart.

Contents of the invention

The technical task of the present invention is to provide a method for enhancing the compatibility between a server main board and different network cards, so as to solve the problem that the server main board is matched with different types or different numbers of network cards, and the system restarts after shutdown.

The technical task of the present invention is achieved in the following manner, a method for enhancing the compatibility between the main board of the server and different network cards, on the main board of the server, by adjusting the trigger time of the voltage conversion control signal, shortening the connection time of the voltage conversion during the shutdown process, ensuring During the conversion process, the input voltage and output voltage are always within the normal voltage application range.

The specific steps are:

(1) Check the voltage waveform during the normal shutdown process of the system according to the server motherboard with different numbers or different types of network cards, and the phenomenon of system restart after shutdown;

(2) If it is found that the connection time of the voltage conversion is long during the shutdown process, resulting in the situation that the signal voltage of the control switch is lowered during the voltage conversion, proceed to the next step;

(3) By shortening the turn-off time of the MOS tube that controls the timing of the entire conversion circuit during the shutdown process, the voltage conversion connection time during the shutdown process is shortened;

(4) Ensure that the input voltage and output voltage are always within the normal voltage application range during the conversion process.

In step (3), the turn-off time of the MOS tube is controlled by adjusting the resistance value of the voltage dividing resistor of the MOS tube.

A method for enhancing the compatibility between the mainboard of the server and different network cards of the present invention has the following advantages:

1. By reducing the connection time of the voltage conversion during the shutdown process, the phenomenon of pulling down the input voltage during the voltage conversion process is reduced;

2. Ensure that the server motherboard can work normally with different types of network cards;

3. Users can use multiple network cards on the server motherboard at the same time according to their own needs, which expands the scope of application, meets user needs to a greater extent, and reduces research and development costs.

4. No matter what type of single network card or different number of network cards the server motherboard is equipped with, the server motherboard can support it, and it is no longer affected by the type and quantity of the network card to cause the failure to start or shut down and restart, so that the server motherboard is more widely used (compared with matching The server motherboard with a fixed network card has lower requirements), which can meet the application needs of different users to a greater extent.

5. By adjusting the connection time of voltage conversion, in the application scenario of centralized power supply of network cards, all network cards on the server motherboard can be safely realized to work normally, which can solve the problem of restarting when the system is shut down.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Accompanying drawing 1 is the network card power supply conversion diagram of prior art;

Accompanying drawing 2 is the switch signal control diagram of prior art;

Accompanying drawing 3 is a network card power conversion relationship diagram of a method for enhancing the compatibility between a server motherboard and different network cards.

detailed description

A method for enhancing the compatibility between a server motherboard and different network cards of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1:

The present invention provides a method for enhancing the compatibility between a server main board and different network cards, a method for enhancing the compatibility between a server main board and different network cards. On the server main board, by adjusting the trigger time of the voltage conversion control signal, the voltage conversion during the shutdown process is shortened The connection time ensures that the input voltage and output voltage are always within the normal voltage application range during the conversion process.

The specific steps are:

(1) Check the voltage waveform during the normal shutdown process of the system according to the server motherboard with different numbers or different types of network cards, and the phenomenon of system restart after shutdown;

(2) If it is found that the connection time of the voltage conversion is long during the shutdown process, resulting in the situation that the signal voltage of the control switch is lowered during the voltage conversion, proceed to the next step;

(3) By shortening the turn-off time of the MOS tube that controls the timing of the entire conversion circuit during the shutdown process, the voltage conversion connection time during the shutdown process is shortened;

(4) Ensure that the input voltage and output voltage are always within the normal voltage application range during the conversion process.

In step (3), the turn-off time of the MOS tube is controlled by adjusting the resistance value of the voltage dividing resistor of the MOS tube.

Example 2:

As shown in Figure 3, a kind of method for enhancing the compatibility between server motherboard and different network cards of the present invention, concrete steps are as follows:

(1) According to the server motherboard with different numbers or different types of network cards, it is found that some single network cards with high power or more than two network cards of the same type are plugged in, and the system will restart after shutdown;

(2) By checking the voltage waveform during the normal shutdown process of the system, it is found that the connection time of the voltage conversion is long during the shutdown process, which leads to the situation that the signal voltage of the control switch machine is pulled down during the voltage conversion;

(3) By shortening the Q1 off time that controls the timing of the entire conversion circuit during the shutdown process, the voltage conversion connection time that Q3 is off and Q4 is on is shortened, that is, the voltage dividing resistor that controls Q1 on and off is adjusted; When the 12V power-off is down to about 6V, turn off Q1 and adjust it to 12V in Figure 3, and when the power-off is down to about 9V, turn off Q1 to obtain the voltage waveform during the system shutdown;

(4) Finally, complete the design schematic diagram according to the structure in Figure 3, and shorten the voltage conversion connection time during the shutdown process by shortening the shutdown time of the MOS tube that controls the timing of the entire conversion circuit during the shutdown process;

(5) Ensure that the input voltage and output voltage are always within the normal voltage application range during the conversion process.

Through the above specific implementation manners, those skilled in the technical field can easily realize the present invention. However, it should be understood that the present invention is not limited to the specific embodiments described above. On the basis of the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.

Except for the technical features described in the description, all are known technologies by those skilled in the art.

Claims (3)

1. the method for an enhancement service device mainboard and different network interface card compatibility, it is characterized in that on server master board, by the triggered time of adjustment voltage transitions control signal, shorten voltage transitions convergence time in shutdown process, guarantee that in transfer process, input voltage and output voltage are within normal voltage range of application always.

2. a kind of enhancement service device mainboard according to claim 1 and the method for different network interface card compatibility, is characterized in that concrete steps are:

(1) network interface card of varying number or the different model of, according to server master board arranging in pairs or groups, and the phenomenon of restarting after system closedown, check the voltage waveform in system normal shutdown process;

(2) if find, in shutdown process, the convergence time of voltage transitions is longer, causes the situation occurring dragging down gauge tap machine signal voltage during voltage transitions, then carries out next step;

(3), by shortening in shutdown process, controlling the shut-in time of the metal-oxide-semiconductor of whole conversion line sequential, realizing shortening the voltage transitions convergence time in shutdown process;

(4), guarantee that in transfer process, input voltage and output voltage are within normal voltage range of application always.

3. a kind of enhancement service device mainboard according to claim 2 and the method for different network interface card compatibility, is characterized in that in step (3), controlled the shut-in time of metal-oxide-semiconductor by the resistance of the divider resistance adjusting metal-oxide-semiconductor.