Cfh81abtc can't enter the BIOS

1.

1. This does not need too many settings, the best graphics card to use NV graphics card 2, the system win10, the power supply is sufficient, the latest version of the motherboard BIOS, the BIOS settings for the main graphics card to PCI e

2, the hard disk must be GPT format, the system must be 64 bit, UEFI does not support 32-bit system

note: UEFI can boot x64 system on MBR disk, but it needs special settings

3. The traditional MBR partition only supports 2.2t hard disk, and the hard disk larger than 2.2t needs GPT, and the BIOS supports opening the integrated graphics card (which can be set) to double display

However, Qicaihong does not have the motherboard of h81-a. h81-a is an ASUS brand and can not support six graphics cards

select factory settings in BIOS, press enter to save and exit, then discharge the main board COMS, and then enter BIOS to set

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extended data:

seven rainbow motherboard boot into BIOS method:

1, you can press del key to enter BIOS

2. You can boot the BIOS directly without connecting the hard disk

there are two conditions for supported graphics cards:

1. Several graphics cards are supported in a few slots, and the expansion slots of ciex1 and pciex16

The main board power supply and power supply are enough. When most motherboards are turned on, you can enter the BIOS interface by continuously pressing the "del" key. Some notebooks can only enter the BIOS interface by pressing F2

BIOS is not only the basic input and output system of computer motherboard, but also the basic system of communication and recognition between computer hardware

contents include: power settings, hardware on / off, hardware working mode settings, overclocking, etc. The contents of bios are in English. Now some brands of new motherboards support Chinese. The options in BIOS can't be set randomly without understanding its specific function, so as to avoid the computer can't boot normally

its main function is to provide the most direct hardware setting and control for the computer. In addition, BIOS also provides some system parameters to the operating system

the change of system hardware is hidden by BIOS, and the program uses BIOS function instead of directly controlling the hardware. Modern operating systems ignore the abstraction layer provided by BIOS and directly control hardware components

BIOS Setup program mainly manages and sets the basic input and output system of the computer to make the system run in the best state. Using BIOS Setup program can eliminate system faults or diagnose system problems

2. The data cable of the monitor should be connected to the single display interface. Press the F2 or del key to enter the BIOS when starting up.

3. 1: You pull out the hard disk cable, pull out both, and then turn on the computer to see if you can get in,
2: try changing the hard disk cable. Or change the SATA socket. If conditions permit. If it is close to the maintenance point. It is recommended to go to the store for testing. They have motherboard test cards. Can detect the problem of motherboard. Maybe the hard disk chip on the motherboard burned. It could also be a problem with the SATA socket. Or try another hard disk. Maybe the power supply of the hard disk is insufficient and the wire is worn out
3: the self-test of the main board is not carried out. It may be that the BIOS is damaged or lost. It is recommended to physically restore the BIOS, find the location of the button battery on the main board, and find a place with three pins of the clear BIOS nearby. When the power is off, just connect the jumper with two pins to another port. The middle pin should always be used, but only the two pins at the outer end< Second:
1. To boot, you need to press F1 key to enter, mainly because the BIOS settings are inconsistent with the real hardware data,
at this time, you can clear the CMOS battery and boot again
2. Warning! CPU has been changed! Please Enter CPU speed CMOS setup and Remember to save Before Exit! This shows that the BIOS settings are lost. To reset the BIOS, press and hold the "del" key to enter the settings. Please refer to your motherboard manual< br />3.cpu has been changed please re-enter cpu settings in the cmos setup and remember to save before quit!
some motherboards have an external frequency jumper, which is 100MHz by default. Some motherboards don't support automatic frequency molation. You just need to enter the BIOS and set the external frequency to your CPU standard external frequency.

4. Hello, my friend: generally, the computer stays in the logo screen when it is turned on, or the screen is black after the logo screen is displayed, and you can't enter the system. Generally, in this case, you can deal with it from two aspects: the first aspect: Hardware reasons: such as bad contact between hard disk and slot, or poor contact between memory or graphics card and motherboard slot, So Jianyi: turn off the computer, unplug the power, open the back cover of the notebook, then plug the hard disk again, and then pull out the memory. Rub the part of the golden finger (that is, the place with the copper sheet) back and forth with the eraser several times, and then plug it back into the memory slot. Remove the battery from the motherboard. After 30 seconds, re install the battery, restart the computer, and press the F2 key, Enter the BIOS, set a good time and the first boot hard disk, F10 save, restart the computer OK. Generally after this processing, the computer can enter the BIOS, can enter the system. If this is still stuck in this screen, follow the method below. The second aspect: software reasons: This is e to the main boot record or partition table error of the hard disk, which makes it impossible to boot and read the disk, so it is necessary to rebuild the main boot record and partition table to let the computer boot and read the disk. The processing method is as follows: first, prepare a new installation CD of ghost version with PE, no matter XP or win7 (generally software stores or computer stores have bought a 5-8 CD), or prepare a U disk with PE, then press F12 key in BIOS or boot, set the first boot item as CD-ROM (or U disk), put it into the CD (or insert U disk), Enter the CD (or U disk), enter winpe, find a software called diskgenius, open the software, find your own "hard disk", select the hard disk, right-click, a drop-down box will pop up, there is a "rebuild master boot record (MRB)", click the "rebuild master boot record (MRB)", and then a dialog box will pop up, Click "yes" and the dialog box "task completed successfully" pops up. Click "OK" to repair the master boot record. Then click "search for lost partition (rebuild partition table)" in the right-click menu, and a dialog box will pop up: "whole hard disk" and click "start search". At this time, it will search automatically. After searching for the partition, click "keep". In this way, all the partitions are found. You can also see all the partitions on the diskgenius main interface, which means that the partition table has been rebuilt successfully, Finally, you click "save partition table" in the right-click menu, and a dialog box will pop up, "are you sure you want to save?", Click "yes" and finally exit the software diskgenius. This means that your master boot record (MRB) and partition table have returned to normal. Then restart the computer and the computer can enter the operating system. Hope to help you, I wish you happiness~~

5. Can not open the machine or boot into the machine, is the improper operation before you shut down has something to do with it? For example: playing games, watching videos, operating big things, using the computer for a long time caused by the card, right? Or download the inappropriate things, or delete the system files, or power off, the fault will not happen for no reason, right

press the power button to switch on and off repeatedly, and try to put it on for a while. If you really can't, you can't just re install the system. If you can't re install the system yourself, you can spend 30 yuan to find someone to help you

as long as you pay attention to your computer not to get stuck, blue screen, or shut down suddenly, it won't work like this

please ask me if you have any questions

opening BIOS is to use the CD-ROM to install the system and set the CD-ROM drive to start. If you do not reload, it is useless to open the BIOS. It is not caused by the setup problem, because the BIOS cannot be started e to the card crash, so it is useless to enter the BIOS.

6. Your computer may have enabled the quick start function, so you have no time to press the hot key to enter the BIOS and go directly to the operating system.. You can try to interrupt the boot process by pressing pause when booting, and then press F2 to see if you can enter the BIOS.. If it doesn't work yet, you can discharge the BIOS.. Directly restore the factory settings to see if you can enter the BIOS.. In addition, you said that the software can not be used normally, I don't know what it means.. You try to reload the software to see if it can still be used.. If there are too many system problems.. Just reload the system

7. In this case, if you fail, you need to restart and try again, pressing only one key at a time until you can enter the BIOS.

8. 1. It is suggested that after power on and power off for three times, you can enter the safe mode, select troubleshooting, advanced options, and enable the safe mode
2. After entering the safe mode, insert the windows installation disk, press Win + R, enter SFC / scan in the operation box, and click OK to repair the system
3. If you can't restart after the repair, you can directly use the windows installation disk to boot and install the operating system completely
4. If the original version is the same after installation, there may be a problem with the hardware, try to replace the memory, hard disk and other hardware, find the problem hardware, repair or replace it.

9. BIOS ROM chips can not only be seen on the motherboard, but also the BIOS management function largely determines whether the motherboard performance is superior
. BIOS management functions include:

1. BIOS interrupt service program is essentially a programmable interface between software and hardware in microcomputer system, which is mainly used to connect program software functions and
microcomputer hardware. For example, Windows 98 for floppy drive, optical drive, hard disk management, interrupt settings and other services, proceres< BIOS system setup program: the configuration record of microcomputer components is placed in a writable CMOS RAM chip, which mainly stores the basic information of the system, CPU characteristics, soft and hard disk drives, etc. A "system setup program" is installed in the BIOS ROM chip to set the parameters in
CMOS ram. This program can enter the setting state by pressing a key when starting up, and provides a good interface

3. Post power on self test: after the microcomputer is powered on, the system first checks the internal devices by the (power on self test) program. Generally, the complete post self-test will include testing the CPU, 640K basic memory, 1m or more expanded memory, ROM, motherboard, CMOS storage
device, serial and parallel port, display card, soft and hard disk subsystem and keyboard. Once problems are found in the self-test, the system will give a prompt or sound
alarm

4. BIOS boot bootstrap program: after the system completes the post self-test, Rom BIOS first searches the hard disk drive, CD-ROM, network server and other effective boot drives according to the boot sequence saved in the system CMOS settings, reads the operating system boot record, and then gives the system control to the boot record, The boot record is used to start the system in sequence

1. How to enter the BIOS of notebook computer: fault phenomenon: a second-hand Compaq notebook computer needs to enter the BIOS for some settings,
but I don't know the shortcut key. Fault analysis and treatment: the way most laptops enter BIOS is different from that of desktop computers. Most laptops press [F1], [F2], [F10] or [Ctrl + Alt + ESC] keys. In addition, many notebook computers can
set the motherboard BIOS through special programs

2. Unable to start after clearing the CMOS: fault phenomenon: the parameter settings of the hard disk are modified in the BIOS, saved and restarted. When the system self checks
the loudspeaker gives an alarm, and the start fails. Turn off the computer, short circuit the jumper on the main board, clear the CMOS, and then set the jumper to the default
state. When the computer is turned on, the power indicator does not light, the CPU fan does not turn, and the computer cannot start. Fault analysis and treatment: it is estimated that after turning off the switch of the computer
and the socket, the power plug of the computer is still in the charged state e to the quality problem of the socket, resulting in the failure of clearing the CMOS. After unplugging the computer power socket, plug it in again, and then turn on the computer power switch to clear the fault

3. Long time of memory detection ring startup: fault phenomenon: after changing the motherboard once, it takes a long time to detect the memory before entering the
operating system. Fault analysis and treatment: memory detection is a necessary process for computer startup. It is estimated that the "quick power
on self test" item is not set to "enable" in BIOS, so that the memory will self check three times. Set it to "disable" and then save it to exit,
so that the memory detection can be carried out quickly at startup

4. BIOS can't be set: fault phenomenon: after the computer is turned on, you can enter the BIOS setting program, except for "user password", "save to repair
change to exit" and "exit without saving". Fault analysis and treatment: it is estimated that the CMOS
s is damaged. You can try to discharge the CMOS. If the fault cannot be solved after discharge, you can also try to upgrade the BIOS. If the fault is still
there may be a problem with the CMOS memory. Replace it

5. The computer is abnormal after refreshing BIOS: fault phenomenon: a computer can be started after refreshing BIOS, but sometimes it will crash before it is finished,
or it will crash when entering the operating system. Fault analysis and treatment: the cause of the problem should be caused by refreshing the BIOS. It is estimated that
the BIOS program of other motherboards or the BIOS version is wrong. As motherboard manufacturers often introce a chipset motherboard, they will graally
introce upgraded and improved versions, so that some new functions can be added. For the upgraded and improved version, there is no big change in function, so the hardware design has little change, and the BIOS program is very similar. Therefore, even if the BIOS is swiped incorrectly, it can be started sometimes
since the computer can still be started, you can try to enter DOS real mode and brush back the original BIOS program, which should be able to solve the problem

6. USB failure after BIOS upgrade: fault phenomenon: restart the computer after BIOS upgrade, CPU, memory and keyboard pass through ring self-test,
but crash when IDE interface is detected. Fault analysis and treatment: after reset and startup, you can't enter BIOS for setting. After unplugging the battery and clearing the parameters set in BIOS,
Restart and enter the BIOS setting interface again. After checking, it is found that the "USB controller" in "integrated peripherals" item is set to "disabled", and everything is normal after it is set to "enables"

7. Unable to restart after automatic shutdown: fault phenomenon: a computer is shut down suddenly in use and cannot be started after pressing the host power supply. The screen is always black, but the power supply to the main board is normal. Fault analysis and treatment: it is estimated that the memory is loose. After opening the chassis, plug the memory again,
the fault remains after power on, but the host does not make any sound, so the memory fault can be eliminated. Then plug in the monitor again and replace a CPU with a question
and the problem is still the same. So I suspect that there is something wrong with BIOS. After the power in CMOS is discharged, I restart the system and everything is normal.
this situation may be caused by the instability of the voltage, which causes the data error in the BIOS of the motherboard. Just restore the data after the BIOS

8. Too high temperature causes the computer to slow down: fault phenomenon: after a computer is used for several hours, the speed will automatically slow down. Therefore,
obstacle analysis and treatment: firstly, it is suspected that there is a virus, and no virus is found by using the latest version of Rising antivirus software. So I think it's the problem of the operating system
and I can re install the operating system. After using it for a period of time, the computer's running speed still slows down. Later, I prepared to open the chassis to replace the hardware and found that the temperature in the chassis is high. Therefore, I suspect that the temperature in the chassis is too high, which causes the BIOS monitoring program to rece the CPU frequency and slow down the computer's running speed. When checking in BIOS, it is found that the warning temperature of CPU is set too low. When the warning temperature of CPU is raised a little, the fault disappears

9. BIOS setting error, unable to read the hard disk data: fault phenomenon: unable to access the hard disk after modifying the BIOS setting of the computer once. Therefore,
fault analysis and processing: there are many parameters in BIOS that can set the working condition of the hard disk. If it is not set properly, the working condition of the hard disk will be affected. At present,
ides support logical parameter types, and hard disk can adopt "normal, LBA, large" and so on. If data is installed in general mode and changed to other mode in BIOS,
hard disk reading and writing errors will occur. Now computer BIOS supports the function of "ide auto detect"
, which can automatically detect the type of hard disk, The hard disk option can be set to "auto" in BIOS, and the system can automatically find the hard disk and access it normally

10. BIOS settings lead to 3D failure: failure phenomenon: when a computer uses 3D maxs software for 3D animation design and rendering, it often proces black screen and crash. Fault analysis and treatment: first, I thought it was the operating system. After formatting and reloading the operating system, the fault still existed. After replacement, I found that all the components in the host were good. Later, I found that after changing the "CPU
internal cache" item in the "BIOS features setup" item from "enable" to "disabled", the "CPU
internal cache" item in the "BIOS features setup" item changed from "enable" to "disabled", When you use # D Max again, there is no black screen crash and other
phenomenon

11. Computer can't start after power failure: fault phenomenon: power failure occurs suddenly ring the process of using the computer. When the computer is started again after an incoming call, it can't enter the operating system. Fault analysis and treatment: the operating system was damaged when the power was cut, so the operating system was reinstalled. Use the Windows CD to start
and then overlay the installation. When you start it for the second time, you will be prompted "insufficient memory, please exit some running programs" and the installation program will stop. In order to solve the problem,
reset the hard disk after formatting, or reset the BIOS after clearing

12. The CMOS setting is inconsistent with the parameters of the memory mole: fault phenomenon: when the computer is upgraded, it retains the original 64MB of memory, and adds a 256MB memory without parity
check. When the computer is started, the screen shows that the total memory is 320mb, then it prompts the parity error, and then it crashes, and it is unable to enter the BIOS
setting. Fault analysis and treatment: it is estimated that the BIOS will set the memory to parity state, and use the memory without parity function
caused. After the memory mole with parity function is replaced, the self-test is passed, and the BIOS setting can be smoothly entered. After the parity check function is turned off, the original upgraded memory mole can be inserted into the motherboard again, and the BIOS settings can also be entered, but it will crash after exiting the BIOS. After carefully checking the settings in
BIOS, no setup errors are found. So I prepared to reload the system. When I tried to start the system with the floppy drive, I found that the indicator light of the
floppy drive was not on. It was estimated that there was a conflict between the memory mole and the BIOS settings. After changing the memory read wait state and memory write wait state from "0W / s" to "1W / s", there is no
crash after saving and exiting BIOS

13. Unable to modify the data in BIOS: fault: unable to modify the data after entering BIOS settings. Fault analysis and treatment:
there are many cases of this phenomenon, and the treatment methods are also different: 1) BIOS chip is damaged. In this case, the mainboard should be repaired
2) CMOS memory problems can be solved by discharging or upgrading BIOS program; 3) The BIOS data on the motherboard is damaged by the virus,
in this case, the CMOS can be discharged, and then the BIOS can be reset; 4) "User password" and "super user password" are set in the BIOS of the computer. The permissions of these two users are different. When the user password is used to enter the CMOS, it cannot be modified. Only when the super user
password is used to log in can the settings be modified.

10.

to see the prompt, you need to press del or F2 to enter

if not, please check whether the keyboard indicator is on

it is possible that the USB driver has not been loaded on the motherboard, so the keyboard of USB interface can not be used normally for the time being