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This phenomenon is generally caused by two situations:
First of all, the reason for excluding the above is that a lot of software is installed and started together, because the computer has not been started at this time, so there is no software to start or not.
First: memory issues.
This phenomenon mostly occurs on the motherboard of the integrated graphics card, especially on the motherboard of the newer C51 and A69 chipsets, this kind of motherboard should use the memory as video memory, and the memory requirements are higher, and it is very easy to turn on the host computer and not light up.
Second: power supply issues.
My own machine Celeron, 845GL appeared this phenomenon two years ago, just replace a power supply, this is because there is a pulse current to activate the power supply by pressing the power button, if the power supply is not working properly, some circuit voltage is not enough or the voltage is unstable or even there is no power supply, then the motherboard can not be powered on and self-test, causing the host to fail to light up.
I do computer after-sales.
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Do you install a lot of software that starts with the system, and delete the items that don't need to be started with the computer! Run msconfig to remove unnecessary grooves from the startup item.
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The bois is set up incorrectly! Press the del button when you turn it on, take out your motherboard manual, and reset the parameters on it.
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I don't know how to play it, so you might as well do it yourself.
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It may be that the BOIS settings are incorrect, or it may be a matter of the data cable, or it may be that the floppy drive is broken, not necessarily.
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It may be that the power supply is not enough.
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Just say that the computer can't start normally, who knows what's wrong with your computer? The specific explanation is clear.
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1. Restore or optimize BIOS settings.
After turning on the computer or restarting the computer, "CD...... is displayed on the screen, press the "DEL" key to enter the BIOS settings interface, award
loadbios
defaults, this option is used to load the BIOS initial settings to determine the scope of the failure.
loadoprimum
Settings (load motherboard BIOS factory settings), which are optimized settings for the factory BIOS.
or amlload
biossetup
defaults, which is used to load the initial BIOS settings.
loadhigh
performance
defaults (high performance default), this option is used to load BIOS optimization settings.
After selecting the default or optimized value with the keyboard arrow keys, press the ESC key, F10 key.
Y key, press Enter, Save and Exit Settings.
2. Turn off the floppy drive.
Reboot, press del into the BIOS, and find Standard
cmossetup
Press Enter in the interface that opens and place Drive
A: and driveb: both change to none, and floopy
3 (floppy drive) is set to disable, press the esc key, and the F10 key.
Y key, press Enter, Save and Exit Settings.
3. The floppy drive is not detected when it is turned on.
Reboot, press del into the BIOS, and find Advanced
biossetup
Press Enter in the interface that opens, and set "Boot."
upfloppy
seek", set to "disabled", press the esc key, and press the f10 key.
Y key, press Enter, Save and Exit Settings.
4. Set the hard disk as the first boot. Reboot, press del into the BIOS, and find Advanced
For BIOSFEATURES, press Enter to Advanced
The biosfeatures interface will be first
bootdevice
Set to HDD-O (Hard Disk Boot).
5. Check and replace the motherboard battery.
Turn on the computer to see if you don't need to press F1 anymore.
Press the Delete key to enter the BIOS, enter the Advanced Setup Page, find the Quick Boot item, and set it to UnabledSkip the self-test and try it.
According to your situation, it should be a bad sector in the hard disk, if you understand enough, you can repair it by burning the disk in the ** software on the Internet, software, recommend a more general: Norton Disk Repair Tool. Generally, if you don't know much, just take the repair point there and ask him to fix it for you.
It's good to restore the default value in the CMOS, if it doesn't work, you have to look at the English prompts, if the computer has been bought for more than 5 years, it is estimated that it is time to change the CMOS battery.
It's obviously a system problem, reinstall it.
Unplug the memory and listen to whether there is an alarm, if there is no alarm, it may be a problem with the motherboard, if you can hear the alarm sound, do a simple cleaning of the memory and graphics card (clean up the gold finger, slot), and then install it OK.