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Follow on Google News | Laptop can not enter the BIOSif the laptop BIOS is not very good if it solves the problem. This article will introduce the principles of BIOS features, combined with several instances of laptop BIOS problem for everyone to be a failure for the laptop BIOS detailed explanation.
By: www.sales-battery.com BIOS management features include: 1.BIOS interrupt service routine is essentially a computer system, software and a programmable interface between the hardware, mainly for computer hardware, software functions and indirect. For example, WINDOWS98 on the floppy drive, optical drive, hard disk, such as management, interrupt settings and other services and procedures. 2. BIOS system setup program: computer components are placed in a configuration record can be written in the CMOS RAM chips, mainly preserved in the basic situation of the system, CPU features, soft-hard drive and other components of the information. BIOS ROM chip installed in the "System Setup", mainly to set the parameters in the CMOS RAM. This program can boot into a key set by the state, and provide a good interface. 3.POST POST: computer power, the system first by (Power On Self Test, POST) program to check each device on the inside. POST is usually a complete self-test will include the CPU, 640K base memory, 1M or more extended memory, ROM, motherboard, CMOS memory, serial and parallel, VGA card, hard disk subsystems and software for testing the keyboard, once found problems in self-test The system will give a warning message or a whistle. 4. BIOS boot bootstrap process: the system to complete POST, after, ROM BIOS to first follow the system CMOS settings stored in the boot sequence search software hard drive and CD-ROM, network server and so effectively the boot drive, read the operating system boot record, then the system control to the boot record, boot record to complete the system by the order to start. Laptop can not enter the BIOS boot failure examples to explain: 1, how to enter the laptop BIOS: fault phenomenon: a second-hand COMPAQ notebook computers, some settings need to enter the BIOS, but do not know the shortcut keys. Failure Analysis and Treatment: Most laptop computers are different from the way into the BIOS, desktop and notebook computers are mostly press [F1], [F2], [F10] or [CTRL + ALT + ESC] key and so on. In addition many laptop computers can also set up special procedures to the motherboard BIOS. 2 does not start after CMOS clear: failure phenomenon: the hard drive in the BIOS, change the parameter settings, save and restart the system self-test, the speakers sound the alarm, failed to start. Turn off the computer, the motherboard shorting jumper after the above clear CMOS, then the jumper set to the default state after boot, power light is off, CPU fan does not turn the computer can not start. Fault Analysis and Processing: Estimation and sockets in the switch off the computer after the computer power plug for outlet quality problems, still, under the charged state, leading to clear the CMOS unsuccessful. Unplug the computer power in the re-plug socket, then turn on the computer power switch, you can clear the fault. 3, the boot memory test for a long time: Symptom: In the motherboard replaced once after each boot memory testing is time to have access to the operating system. Failure analysis and processing: memory test is started the computer must process. Estimate is not in the BIOS to "Quick PowerOn Self Test" entry set to "Enable", so the memory will be self 3 times. Set it to "Disable" and then save and exit, so you can quickly start to the conduct of memory tested. 4, BIOS can not be set: Symptom: After the computer boots into the BIOS setup program, which can be set to "password", "Save Changes to exit" and "save and exit" 3, the remaining are unable to enter. Failure analysis and processing: estimation of this phenomenon is the CMOS is damaged, you can try to discharge treatment, if the CMOS fault can not be resolved after discharge, but also try to upgrade the BIOS. If the problem persists, there may be a CMOS memory problems, replace it immediately after. 5, after the computer BIOS does not properly refresh: failure phenomenon: a computer can be started after the BIOS update, but sometimes on the crash has not finished, or at time of entering the operating system will crash. Failure Analysis and Treatment: There should be a cause of the problem after BIOS update caused was estimated to be painted other motherboard BIOS version BIOS program or not. Because manufacturers tend to introduce a motherboard chipset, will be launched to upgrade and improved version, so you can add some new features. For this cause the version upgrades and improvements in function and no major changes, so little change in hardware design, BIOS program is also very similar. So, even if sometimes brush the wrong BIOS can start. Because computers can also start, you can try to enter real mode DOS program to brush back the original BIOS should be able to solve the problem. 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