CN1121641C - Method for automatic backup of CMOS RAM and masterboard system - Google Patents

Method for automatic backup of CMOS RAM and masterboard system Download PDF

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Publication number
CN1121641C
CN1121641C CN 99123162 CN99123162A CN1121641C CN 1121641 C CN1121641 C CN 1121641C CN 99123162 CN99123162 CN 99123162 CN 99123162 A CN99123162 A CN 99123162A CN 1121641 C CN1121641 C CN 1121641C
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cmos
computer system
power supply
battery
system
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CN 99123162
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CN1294335A (en )
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张乃舜
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威盛电子股份有限公司
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Abstract

一种可自动备份CMOS RAM的方法与主机板系统,在电脑系统处于关机状态时,以一检测器检测COMS电池的电压是否低于正常工作值。 An automatic backup method CMOS RAM and the motherboard system when the computer system is off, to a voltage detector detects COMS battery is below the normal operating value. 若CMOS电池的电压低于正常工作值,则以一主要控制器控制一电源供应器开启电源使电脑系统自动开机,并且将CMOS RAM的存储数据储存于电脑系统的一储存装置。 When the voltage is lower than the normal operating value CMOS battery, it places a primary controller controls a power supply to make the computer system to automatically turn on the power turned on, and the CMOS RAM stores the data is stored in a storage device of the computer system. 之后,主要控制电路控制电源供应器关闭使电脑系统自动关机。 Thereafter, the main control circuit controls the power supply so that the computer system automatically shut off. 下次电脑系统开机时,主要控制器将储存装置所储存的CMOS RAM的存储数据存回CMOS RAM,并且提醒使用者更换CMOS电池。 The next time the computer system is turned on, the main controller for the storage device to store data stored in memory back to the CMOS RAM CMOS RAM, CMOS and remind users to replace the battery.

Description

可自动备份CMOS RAM的方法与主机板系统 A method of automatically backed up CMOS RAM and the motherboard system

技术领域 FIELD

本发明是有关于一种电脑系统,且特别是有关于一种可自动备份CMOS(complement metal oxide semiconductor)RAM(random access memory)的方法与主机板系统,防止CMOS RAM的数据因CMOS电池电能不足而遗失。 The present invention relates to a computer system, and more particularly relates to a method and system motherboard automatically backed up CMOS (complement metal oxide semiconductor) RAM (random access memory) to prevent CMOS RAM data due to insufficient battery power CMOS and lost.

背景技术 Background technique

一般所谓的CMOS RAM大致上储存有电脑系统的装置数据、基本输入输出系统(basic input ouput system,BIOS)所产生的数据、系统开机设定与实时时钟(real time clock)等。 Usually a so-called CMOS RAM data storage devices generally have a computer system, a basic input output system data (basic input ouput system, BIOS) generated by the system boot configuration and real time clock (real time clock) and the like. 现今CMOS RAM的存储容量约设计为128-256位组(bytes)。 Nowadays CMOS RAM storage capacity of about 128-256 is designed to group bits (bytes).

目前电脑系统中CMOS RAM的电源供应有二:一为CMOS电池,另一为电源供应器所提供的工作电源。 Power supply current CMOS RAM has two computer systems: one for the CMOS battery, and the other is provided by the power supply operating power. CMOS电池一般为不可充电式,例如因美国法令规定为了环保用途所以使用锂电池作为CMOS电池。 CMOS is generally non-rechargeable battery, such as the United States due to use environmental laws and regulations in order to use it as a CMOS lithium battery. 而CMOS电池在电脑系统处于关机状态时提供CMOS RAM电源,如此可开于电源供应器关闭时提供CMOS RAM必要的工作电源,保持CMOS RAM内的数据正确性。 The CMOS battery provides power CMOS RAM when the computer system is turned off, so can be opened to provide the necessary operating power CMOS RAM when the power supply is turned off, maintaining data correctness in the CMOS RAM. 当电脑系统处于开机状态时,CMOS电池就不提供电源了,此时CMOS RAM的操作电源是由电源供应器所提供。 When the computer system is turned on, the power supply does not provide the CMOS battery, the operating power CMOS RAM at this time is provided by the power supply.

请参照图1,其绘示传统CMOS RAM的电源供应示意图。 Referring to FIG. 1, a schematic diagram of a conventional power supply which illustrates the CMOS RAM. 当电脑系统开机时,电源供应器会输出电源电压Vcc'而因为电源电压Vcc大于CMOS电池VBAT的电压,所以是由电源供应器供应CMOS RAM 100工作电源。 When the computer system is turned on, the power supply can output power supply voltage Vcc 'is greater than the power supply voltage Vcc as the voltage of CMOS battery VBAT, the power supply 100 operates from the power supply CMOS RAM. 不过,当电脑系统关机时,电源供应器关闭不输出电源电压Vcc,因此由CMOS电池VBAT提供CMOS RAM 100工作电源。 However, when the computer system is shut down, the power supply does not output the power supply voltage Vcc off, thus providing operating power CMOS RAM 100 by the CMOS battery VBAT.

然而,因为作为CMOS电池的锂电池为不可充电的,因此其电能是有可能耗尽的。 However, because of non-rechargeable lithium battery as CMOS battery and therefore it is possible depletion of energy. 但是,CMOS电池为维持CMOS RAM数据完整性不可或缺的,若CMOS电池电能耗尽或是电压未达工作要求时,会使CMOS RAM中所储存的数据遗失,造成使用者极大的不便之处。 However, CMOS RAM CMOS battery to maintain data integrity essential, if the battery runs CMOS or less than the working voltage requirements, make the CMOS RAM stored data loss caused great inconvenience to the user place. 例如,每换一次CMOS电池后,使用者就必须重设一次电脑系统数据,甚至有些使用者数据就此遗失。 For example, after each change a CMOS battery, users will have to reset a computer system data, user data and even some of this loss.

再者,现今电脑技术的趋势为增大CMOS RAM的储存容量,不但会将BIOS数据放入,更可能会存入作业系统(operation system,OS)的基本设定数据,因此,如何使CMOS RAM数据维持不遗失成为本发明的课题。 Moreover, the current trend in computer technology is to increase the storage capacity of the CMOS RAM, BIOS data into only will more likely be stored in the operating system (operation system, OS) of the basic setting data, therefore, how to make CMOS RAM be maintained without data loss problem of the present invention.

发明内容 SUMMARY

有鉴于此,本发明的主要目的是提供一种可自动备份CMOS RAM的方法与主机板系统,使CMOS RAM不会因CMOS电池电能耗尽或电压不足而遗失数据,确保CMOS RAM的数据完整性。 In view of this, the main object of the present invention is to provide a method for automatic backup CMOS RAM and the motherboard system will not make CMOS RAM CMOS battery runs insufficient voltage or loss of data, ensure data integrity of the CMOS RAM .

根据本发明的上述目的,提出一种可自动备份CMOS RAM的方法,适用于一电脑系统。 The above object of the present invention, a method of automatically backed up CMOS RAM, for use in a computer system. 此该电脑系统关机状态时是以一CMOS电池来维持CMOS RAM的储存数据。 A CMOS battery is turned off when the computer system to maintain this data is stored in the CMOS RAM. 本发明的方法包括:在电脑系统处于关机状态时,检则CMOS电池的电压是否低于正常工作值;若CMOS电池的电压低于正常工作值,则电脑系统自动开机,并且将CMOS RAM的储存数据储存于电脑系统的一储存装置;之后,电脑系统自动关机;下次电脑系统开机时,将储存装置所储存的CMOS RAM的存储数据存回CMOS RAM,并且提醒使用者更换CMOS电池。 The method of the invention comprises: when the computer system is off, the CMOS check whether the battery voltage is below normal operating value; if the voltage is lower than the normal operating level of the CMOS battery, automatically boot the computer system, and stored in the CMOS RAM data is stored in a storage device of the computer system; then, automatically shut down the computer system; the next time the computer system is turned on, the storage means storing the data stored in the CMOS RAM CMOS RAM memory back, and remind users to replace the CMOS battery.

根据本发明的上述目的,提出一种可自动备份CMOS RAM的主机板系统,适用于一电脑系统,该电脑系统至少包括该主机板系统、一CMOS电池、可提供一主要电源与预备电源的一电源供应器以及一储存设备;其特征是,该主机板系统包括:一CMOS RAM,用以储存该电脑系统的相关数据;该CMOS电池与该主要电源分别于该电脑系统处于关机与开机状态时供应该CMOSRAM电源;一检测器,以该预备电源为工作电源,检测该CMOS电池的电压是否低于正常工作值;以及一主控制电路,以该主要电源与预备电源为工作电源,分别接收该检测器的检测结果信号、控制该CMOS RAM与该储存装置的数据传递以及控制该电源供应器启动与关闭。 The above object of the present invention, a CMOS RAM an automatic backup system motherboard for a computer system, said computer system comprising at least the system motherboard, a CMOS battery, may be provided a main power supply and a standby power of power supply, and a storage device; characterized in that the system motherboard comprising: a CMOS RAM, for storing data related to said computer system; the CMOS battery and the power supply respectively to the main computer system is switched off when the the CMOSRAM power supply; a detector, to the standby power is the power supply, detecting whether the CMOS battery voltage is below normal operating value; and a main control circuit to the primary power supply and the standby power is the power supply, receives the detection result signal detector, for controlling the CMOS RAM data transfer with the storage device and controlling the power supply startup and shutdown.

为让本发明的上述和其他目的、特征、和优点能更明显易懂,下文特举一较佳实施例,并配合附图,作详细说明如下:附图说明:图1绘示传统CMOS RAM的电源供应示意图;图2绘示本发明一较佳实施例的一种可自动备份CMOS RAM的主机板系统与其相关装置;以及图3说明解释本发明较佳实施例的一种可自动备份CMOS RAM的方法步骤。 To make the above and other objects, features, and advantages can be more fully understood by reading the following a preferred embodiment accompanied with figures are described in detail as follows: Brief Description: FIG. 1 illustrates a conventional CMOS RAM a schematic diagram of the power supply; FIG. 2 illustrates an embodiment of the present invention may be one kind of automatic backup system motherboard CMOS RAM means associated therewith a preferred embodiment; and Figure 3 illustrates a preferred embodiment of the automatic backup of the present invention is explained CMOS the method step of RAM.

具体实施方式 Detailed ways

典型以微处理器为核心的个人电脑或工作站电脑的电源控制,早期是利用纯机械性的开路/闭路接触开关装置,来控制对电源供应器电路所提供的主电源,诸如控制110伏的交流市用电源。 In a typical microprocessor core PC or workstation computer power control, the use of purely mechanical early open / closed contact switch means to control power to the main power supply circuit is provided, such as a 110 volt AC control commercial power source. 当此电源开关处于开路状态时,系统的电源供应器没有电源,故系统关机。 When this power switch is in an open state, the power supply system without power, so system shut down. 当此电源开关被切换为闭路状态时,交流电源即被供应给系统的电源供应器,电源供应器便可以产生电脑系统操作所需的各种直流电源,典型如正/负5V(伏)与正/负12V(伏),使电脑系统得以启动,开始进行操作。 When this power switch is switched to the closed state, i.e. the AC power supplied to the power supply system, the power supply can generate various DC power required by the computer operating system, typically as positive / negative 5V (volts) and positive / negative 12V (volts), to make the computer system startup, the operation starts. 此种机械性电源开关必须以人工直接进行切换的动作,才能使电脑系统启动或关机。 Such mechanical operation of the power switch must be switched directly by hand, to make the computer system startup or shutdown. 若无操作或使用人员在电脑系统所在的现场,系统即无法开启或关闭。 If there is no operation or use of personnel at the scene where the computer system, the system can not be turned on or off.

另一方面,美国加利福尼亚州圣塔克拉拉市的英代尔公司(IntelCorporation,Santa Clara,California)先前提议一种其称为ATX的个人电脑主机规格,其中的电源供应器不再是以机械式的开路/闭路开关作为电脑系统的主要控制开关而对系统进行直接控制。 On the other hand, the city of Santa Clara, California, Intel company (IntelCorporation, Santa Clara, California) previously proposed PC host one of its specification called ATX, where the power supply is no longer a mechanical the open / closed switch is used as main control switch and a computer system for direct control of the system. 相对地,此种ATX的电源规格是以电脑内部控制晶片上的电路来进行整个电脑系统电源的管理与控制。 In contrast, ATX power supply specifications such circuits on the wafer is controlled within the computer to manage and control the entire computer system power supply. 此亦为一种软性电源控制的观念,其可利用各种不同的方式来开关电脑,而不再仅只限于由电源的机械性开关切换,以开启与关闭两种单纯的状态来控制电脑系统的操作。 Also goes to a concept of flexible power control, which may be utilized in various ways to switch the computer, rather than switching only been limited by the mechanical switching power supply to a simple opening and closing two kinds of states to control the computer system operation.

以ATX规格的2.01版为例,其预备电源(standby power)5VSB为一个直流5V的电源,其最大可以供应到0.7A(安培)的输出电流量,以便在关机的状态之下驱动电脑系统之中的基本电源管理电路。 In an ATX version 2.01 for example, the standby power (standby power) 5VSB a 5V DC power supply, which may be supplied to the maximum 0.7A (amperes) current output to drive a computer system under a state of shutdown the basic power management circuitry. 此种管理电路可以被设定来进行许多的操作使用上的方便功能。 Such management circuit may be set to a number of convenient features on the operational use. 例如,系统可以事先设定妥当,于夜间预定的时间自动启动,以便在电话公司的减价时段内发送国际传真,或者,当夜间无人操作时,可因外来的诸如数据机拨叫事件而启动,以便接受外来文件的传输,等等。 For example, the system may properly set in advance, at night predetermined time automatically start to send a fax in the international telephone company Clearance period, or when the unmanned operation at night, may be due to external machines such as a data call event started to accept foreign transfer files, and so on.

因为电源供应器的功能更新,现今的电源供应器是可以于电脑系统处于关机状态时仍提供低耗电的备用电源。 Still providing a low-power standby power when the power supply because the update function, the current power supply is turned off in the computer system. 例如上述的ATX架构电源供应器就可以于启动时同时提供主要电源与备用电源,而于关闭时提供备用电源。 ATX architecture such as described above power supply can be started at the time of primary power and also provides backup power, backup power is provided in the closed. 而本发明即是利用此类可提供主要电源与备用电源的电源供应器,达成本发明可自动备份CMOS RAM的方法与主机板系统。 I.e., while the present invention is the use of such a power supply can provide backup power to the primary power supply, to achieve a method and system of the present invention motherboard automatically backed up CMOS RAM's.

以下请参照图2,用以说明本发明一较佳实施例的一种可自动备份CMOSRAM的主机板系统。 Referring to FIG 2 the following, a preferred embodiment to illustrate one embodiment of the present invention is automatically backed up CMOSRAM system motherboard.

本发明较佳实施例的可自动备份CMOS RAM的主机板系统连接于电脑系统的一CMOS电池VBAT、一电源供应器240与一储存设备230之间;其中电源供应器可提供主要电源MP与备用电源SBP,是一种可自动开机与关机能力的电源供应器。 Automatically backed preferred embodiment of the present invention is the system motherboard CMOS RAM CMOS battery VBAT is connected to a computer system, between a power supply 240 and a storage device 230; wherein the power supply provides the main and standby power MP power SBP, is an automatically switched power supply and shutdown capability. 上述可自动备份CMOS RAM的主机板系统可以建构于一晶片组(chipset)250之中,如图2所示。 Above automatically backed up CMOS RAM of the system can be built upon a motherboard chipset (Chipset) being 250, as shown in FIG. 此可自动备份CMOS RAM的主机板系统包括一CMOS RAM 200、一检测器(detector)210以及一主控制电路220。 This automatically backed up CMOS RAM system comprises a motherboard CMOS RAM 200, a detector (detector) 210 and a main control circuit 220.

此CMOS RAM 200用以储存电脑系统的相关数据,例如BIOS数据、作业系统(OS)基本设定数据等。 This CMOS RAM 200 for storing data related to the computer system, data such as BIOS, operating system (OS) and other basic setting data. 并且,CMOS电池VBAT与主要电源MP分别于电脑系统处于关机与开机状态时供应CMOS RAM 200工作电源;如此维持CMOSRAM 200的工作电源,保持储存于其中数据完整性。 And when the supply, the main power supply and the CMOS battery VBAT respectively MP computer system is switched off and the operating power CMOS RAM 200; thus maintain the operating power CMOSRAM 200, maintaining the integrity of the data stored therein.

此检测器210以预备电源SBP为工作电源,检测CMOS电池VBAT的电压是否低于正常工作值;亦即,当电脑系统处于关机状态时此检测器210才检测CMOS电池VBAT的电压是否低于正常工作值。 This detector 210 to the power supply for the standby power SBP, detecting whether the voltage of the CMOS battery VBAT is lower than the normal operating value; i.e., when the computer system is turned off until the detector 210 detects this CMOS battery voltage VBAT is lower than normal work values.

主控制电路220耦接于检测器210、CMOS RAM 200、储存装置230与电源供应器240之间,分别可接收检测器210的检测结果信号、控制CMOS RAM200与储存装置230之间的数据传递以及控制电源供应器240的启动与关闭。 The main control circuit 220 is coupled to the detector 210, CMOS RAM 200, between the storage device 230 and the power supply 240, respectively, may be received detection result signal detector 210, and the storage device control CMOS RAM200 data transfer between 230 and controls the power supply 240 enabling and disabling. 此主控制电路220是以主要电源MP与预备电源SBP为工作电源。 This main control circuit 220 is the main power MP and the power supply for the standby power SBP. 因此,主控制电路220可于电脑系统处于关机时接收检测器210的检测结果信号,如此若CMOS电池的电压低于正常工作电压则主控制电路220控制电源供应器240启动开始提供主要电源MP,电脑系统进入开机状态。 Thus, the main control circuit 220 to the computer system may result in the detection signal received by the detector 210 is shutdown, thus providing the main power supply 240 starts the start if the MP CMOS battery voltage is lower than the normal operating voltage control circuit 220 controls the main power supply, It turned into the computer system. 而当电脑系统进入开机状态后,主控制电路220可控制CMOS RAM 200与储存装置230之间的数据传递,如此将CMOS RAM 200的数据存入储存装置230中;例如将CMOS RAM 200的数据存入一硬盘机中。 When the computer system enters the power-on state, the main control circuit 220 may control the transfer of data between the CMOS RAM 200 and the storage device 230, the CMOS data thus stored in the RAM 200 of the storage device 230; e.g. 200 to store the data in the CMOS RAM a hard disk drive into the machine. 之后,主控制电路220控制电源供应器240自动关闭,如此电脑系统自动关机。 Thereafter, the main control circuit 220 controls the power supply 240 is turned off automatically, thus automatically shut down the computer system.

而当电脑系统使用者下次开机时,主控制电路220会将存在储存装置230中原本的CMOS RAM 200的数据回存存回CMOS RAM 200内,如此CMOS RAM200的数据不致因CMOS电池电能不足而遗失。 When the user next boot computer system, the main control circuit 220 will present the data in the storage device 230 the original CMOS RAM 200 is stored back into the memory back 200 CMOS RAM, the RAM 200 of the CMOS data thus will not be due to lack of battery power CMOS missing. 同时,电脑系统会通知使用者更换电池,例如以声音通知或是在屏幕上告知等。 At the same time, the computer system will notify the user to replace the battery, for example, to notify or inform the sound on the screen and so on.

由上所述,本发明较佳实施例所提出的主基板系统可以于CMOS电池电能不足时防止CMOS RAM的数据遗失。 From the above, the preferred embodiment of the present invention, the main system board of the proposed embodiment can prevent the loss of data in the CMOS RAM CMOS battery power is insufficient.

另外,检测器更可以包括记录CMOS电池使用年限的功能。 Further, the detector may further include a recording function CMOS battery life. 若CMOS电池使用年限已到,就同样通知主控制电路220进行上述的动作。 If the CMOS battery life has come to the same notification to the main control circuit 220 perform the operation.

接下来,请参照图3,用以说明解释本发明较佳实施例的一种可自动备份CMOS RAM的方法步骤。 Next, referring to FIG 3, for explaining the method steps of a preferred embodiment of the present invention is explained in automatically backed CMOS RAM.

本发明的方法如下所述。 The method of the present invention is as follows.

步骤300:电脑系统处于关机状态。 Step 300: the computer system is powered off.

步骤310:当电脑系统处于关机状态时,检测CMOS电池的电压是否低于正常工作值。 Step 310: when the computer system is turned off, the voltage detection CMOS battery is below the normal operating value.

步骤320:若CMOS电池的电压低于正常工作值,则电脑系统自动开机;亦即电脑系统的电源自动启动执行开机。 Step 320: if the voltage is lower than the normal operating value CMOS battery, automatically boot the computer system; i.e., supply of the computer system boot automatically start the execution.

步骤330:将CMOS RAM的存储数据储存于电脑系统的一储存装置中,例如储存于一硬盘机中。 Step 330: The CMOS RAM stores data stored in a storage device of a computer system, for example, stored in a hard disk drive machine.

步骤340:电脑系统自动关机;亦即电脑系统自动执行关机将电源关闭。 Step 340: automatically shut down the computer system; i.e., the computer system performs automatically shut off the power.

步骤350:当下次电脑系统开机时,自动将储存装置内所储存的CMOSRAM的存储数据存回CMOS RAM,并且提醒使用者更换CMOS电池。 Step 350: When the next time the computer system is turned on, the stored data is automatically stored in the CMOSRAM apparatus stored in CMOS memory back to the RAM, and remind users to replace the CMOS battery.

因此,依照本发明的方法不但可以提醒使用者更换电池,更可以维持CMOS RAM数据的完整性。 Thus, the method according to the present invention can not only alert the user to replace the battery, but also maintain the integrity of CMOS RAM data.

虽然本发明已以较佳实施例揭露如上,然其并非用以限定本发明,任何熟习此技艺者,在不脱离本发明的精神和范围内,当可作各种的更动与润饰,因此本发明的保护范围当视后附的权利要求所界定者为准。 Although the present invention has been disclosed above by the preferred embodiments, they are not intended to limit the present invention, any person skilled in this art, without departing from the spirit and scope of the present invention, may make various modifications and variations, so scope of the invention as defined by the appended claims and their equivalents.

Claims (5)

  1. 1.一种可自动备份CMOS RAM的方法,适用于一电脑系统,该电脑系统关机状态时是以一CMOS电池来维持该CMOS RAM的存储数据;其特征是,该方法包括:在该电脑系统处于关机状态时,检测该CMOS电池的电压是否低于正常工作值;若该CMOS电池的电压低于正常工作值,则该电脑系统自动开机,并且将该CMOS RAM的存储数据储存于该电脑系统的一储存装置,之后,该电脑系统自动关机;以及下次该电脑系统开机时,将该储存装置所储存的该CMOS RAM的存储数据存回该CMOS RAM,并且提醒使用者更换CMOS电池。 1. A method of automatically backed up CMOS RAM, for use in a computer system, the computer system is turned off when the data are stored in a CMOS battery to maintain the CMOS RAM; and wherein, the method comprising: in said computer system when turned off, the detection voltage of the CMOS battery is lower than the normal operating value; if the voltage is lower than the normal operating value of the CMOS battery, then the computer system automatically turned on, and the CMOS RAM stores data stored in the computer system a storage device, then, automatically shut down the computer system; and the next computer system at boot time, the CMOS RAM stores data of the storage device stored in the CMOS RAM stored back, and remind users to replace the CMOS battery.
  2. 2.如权利要求1所述的方法,其特征是,该储存装置包括一硬盘机。 2. The method according to claim 1, characterized in that the storage device comprises a hard disk drive.
  3. 3.一种可自动备份CMOS RAM的主机板系统,适用于一电脑系统,该电脑系统至少包括该主机板系统、一CMOS电池、可提供一主要电源与预备电源的一电源供应器以及一储存设备;其特征是,该主机板系统包括:一CMOS RAM,用以储存该电脑系统的相关数据;该CMOS电池与该主要电源分别于该电脑系统处于关机与开机状态时供应该CMOS RAM电源;一检测器,以该预备电源为工作电源,检测该CMOS电池的电压是否低于正常工作值;以及一主控制电路,以该主要电源与预备电源为工作电源,分别接收该检测器的检测结果信号、控制该CMOS RAM与该储存装置的数据传递以及控制该电源供应器启动与关闭。 An automatically backed up CMOS RAM system motherboard for a computer system, said computer system comprising at least the system motherboard, a CMOS battery, can provide a power supply with a primary power source and a standby power storage apparatus; wherein the main board system comprising: a CMOS RAM, for storing data related to said computer system; the primary power to the CMOS battery in the computer system, respectively, the CMOS RAM is supplied with power when turned off; a detector, to the standby power is the power supply, detecting whether the CMOS battery voltage is below normal operating value; and a main control circuit to the primary power supply and the standby power is the power supply, receives the detection result of the detector signal, controlling the CMOS RAM data transfer with the storage device and controlling the power supply startup and shutdown.
  4. 4.如权利要求3所述的主机板系统,其特征是,该储存装置包括一硬盘机。 4. The system of claim 3 motherboard as claimed in claim, characterized in that the storage device comprises a hard disk drive.
  5. 5.如权利要求3所述的主机板系统,其特征是,该电源供应器包括一具有自动开机能力的电源供应器。 The motherboard as claimed in claim system of claim 3, wherein the power supply comprises a power supply having a capability of automatically boot.
CN 99123162 1999-10-25 1999-10-25 Method for automatic backup of CMOS RAM and masterboard system CN1121641C (en)

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CN1297908C (en) * 2003-08-25 2007-01-31 联想(北京)有限公司 Method for back-up protection of CMOS data
CN100465907C (en) 2006-08-04 2009-03-04 华为技术有限公司 Apparatus and method of CMOS parameter setting and maintaining
CN102624076B (en) * 2011-08-05 2014-01-22 小米科技有限责任公司 Power supply method for wireless communication terminal

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