Generally, the computer starts up automatically, but sometimes there is a prompt to press F1, otherwise it can't start normally. What's the matter? Friends who don't know can take a look at the following solutions to the boot prompt F1, hoping to help you!
The solution of pressing F1 when the computer starts up
Press F1 to enter the system when starting the computer. Solution: Press F1 when starting the computer. This is caused by BIOS setting error, so it may be because there is no floppy drive but the floppy drive is enabled. At this time, the floppy drive needs to be disabled.
After the computer is powered on, press CMOS: features to enter BIOS settings.
After finding it, set drive a to none and drive B to none, then press F10 to save and enter y to enter.
There may be a memory problem or the CPU frequency has been changed. You need to replace the memory and restore the BIOS default value, or because two hard disks were originally attached, but the BIOS was set to dual hard disks. Later, when one of them was removed, the BIOS setting was not changed back. This problem will also occur, so just restore the BIOS default value.
Method to restore the default value of BIOS: turn on or restart the computer, and then press and hold del key to enter the BIOS. After entering, find loadfail safedefaults, find the direction key on the keyboard, press and hold, select and enter. You will be prompted whether you are sure, and then press y and enter. Finally, select Save & exit and press F10 directly. Press y to restart automatically and the setting will take effect.
If this still doesn't work, you need to check the circuit of the motherboard. If you don't have tools, you can only send them for repair and let people use professional tools for testing.
Related reading: computer BIOS common fault analysis
1、Memory Test Fail
After the computer is turned on, the self-test prompt message is "memory test fail", which means that the memory test fails. Usually, this situation is generally caused by memory incompatibility or failure. Therefore, each time you start up, test with a memory to find out the failed memory, remove it or send it for repair.
2. Long memory detection time
When starting up, other people's computer memory is only detected once, but your computer is detected three times. The memory detection time is too long. How can we make the memory detection faster?
Now the memory capacity is increasing, and the self-test time of boot memory is getting longer and longer. Even if you use fast detection and change three times of detection to one time of detection, the time is not short. However, we can press [del] to enter the setup option, select BIOS features setup, press enter, use [page down] to set "quick power on self test" to "enabled", and use [F10] to exit (answer [y]). Press the [ESC] key to skip the self-test during the post memory.
3. Frequent "illegal operation" errors under Windows
I have a kt133 motherboard, a computer with 128MB memory of ordinary hy PC133. I downloaded a program to optimize the BIOS settings and optimized the BIOS. However, after optimization, there are frequent "illegal operation" errors under windows. How to solve them?
Generally, the BIOS optimization program will comprehensively optimize the BIOS. From the above configuration, the memory is ordinary hy memory, which is not very good. Therefore, after entering the BIOS, it will be found in the "advanced chipset features" that the BIOS optimizer has set the "SDRAM cycle length" item to 2. If we want to stabilize, we just need to change 2 to 3, change "bank interleave" from "4bank" to "disable", and then restart the machine.
4. The memory is 256MB. Why is the message "261120k + 1024k" displayed
This is due to the use of integrated graphics cards. Using the graphics card integrated on the motherboard, the graphics card will share memory with the motherboard. Thus, after power on, the content displayed during memory self-test is different from that displayed on the normal motherboard. The normal motherboard only displays one memory capacity (actual value), while the motherboard of the integrated graphics card will display "261120k + 1024k shared memory", of which 1024k is used to display the cache
5. Why is the screen black when modifying "DRAM timing by SPD"
When using epox panying ep-8kta3 motherboard and setting the "DRAM timing by SPD" option in BIOS to "disabled", the computer will have a black screen; When "DRAM timing by SPD" is set to "enabled", the computer works normally. Why?
This is actually a bug of epox panying ep-8kta3 / 8kta3 + motherboard. We can solve this "problem of detecting the size of SDRAM" by upgrading the motherboard BIOS
6. Why does the 256MB SDR memory only display 128MB after installation
My computer is Lenovo Tianxi brand machine, and the motherboard is 810. Now I want to expand the memory. I bought a 256MB SDR memory, but it only displays 128MB after installation.
Such problems appear more on the mainboard of Intel 810 chipset. This is because the 810 of Intel Chipset does not support single-sided 256MB memory boot, while the 810E and 815, 820 after 810 can support it. Therefore, the solution to the problem is to replace the single-sided 256MB memory with the double-sided 256MB memory.
7. The original 128MB memory. Why is the total amount of memory only recognized as 64MB after inserting a 64MB memory
The computer is configured with 815EP motherboard and 128MB memory. Originally, it was used normally. Later, it got a 64MB memory. After it is plugged in together, why is the total memory only recognized as 64MB?
Insert the memory one by one into the motherboard, which is proved to be good. It can eliminate the quality problem of the memory module. It seems that the compatibility problem appears again. For such memory compatibility faults, we can generally upgrade the motherboard BIOS to solve them. Go to the website of the motherboard manufacturer to see if there is a new BIOS upgrade.
8. After adding a PC133 memory, why does it crash and hot start frequently
Recently, after I added a PC133 memory to the computer (the original memory was PC100 memory), there were frequent crashes and hot starts during operation.
This situation is generally caused by the difference or some differences in brand, speed and capacity between the added memory and the original memory. The solution can adopt the "low" principle. Enter CMOS and see that DRAM timing by SPD is set to "enabled" in advanced chip features, and modify it to "disable". Then change DRAM clock to 100MHz and restart the computer to solve the above faults. If not, try to replace the memory slot. Generally, insert the faster memory into the first slot. If the above methods fail, it is recommended to update the BIOS of the motherboard under DOS. General problems can be solved.
9. HIMEM at startup Why is the sys file wrong
The computer cannot enter Windows 98. It will shut down automatically immediately after entering the system. Start in safe mode and read HIMEM After sys, you will be prompted with "error: himem.sys has deleted unreliable XMS memory at address xxxxx...". How to solve it?
According to the prompt, the problem should be related to the motherboard or memory. Because the prompt indicates that HIMEM is started Memory error in sys file, so you should generally find the problem from memory first. At this point, you can try the following methods:
(1) set the parameters in BIOS to conservative mode. The simplest way is to use the default BIOS parameters.
(2) you can try to clear the information in CMOS memory by discharging. If the above methods do not work, it is recommended to send the main board to the maintenance point or replace it directly.
10. Why is there insufficient memory when upgrading BIOS
When upgrading BIOS, there is insufficient memory, and I only use a clean system disk and the floppy disk of the upgrade file to start. There can be no virus or other programs running. How can there be insufficient memory?
Such a failure is actually dblspace The bin file is making trouble. We can insert a tool disk and check it with MEM / C, and we will find that there is? "Dblspace" program, originally Windows disk compressed file dblspace Bin (this file is in the root directory of drive C) is strung into memory! When you start with a floppy disk, how can the program on the hard disk string into memory? Don't believe it, that's the truth! Remove the attributes with attrib, then copy them to other directories, delete the original C disk root directory, and boot with the upgrade disk again. You can safely upgrade the BIOS. After the upgrade, restore this file.