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86 .The password has been checked; Programming before the bypass arrangement is about to begin. Turn the programmable IO device back on and detect if there is a fixed IO for conflicts.
80 .The keyboard test has begun, clearing and checking for any stuck keys, and the keyboard is about to be restored. Turn off the programmable input and output devices.
81 .Find out the wrong stuck keys for keyboard recovery; A test command for the keyboard control port is about to be issued. .
82 .The keyboard controller interface test is complete, and the command bytes are written and the loop buffer is initially prepared. Detect and install the fixed RS232 interface (serial port).
83 .The command byte has been written, and the initial preparation of the global data has been completed. Coming soon to check if there is a key lock. .
84 .Checked for locked keys, i.e. check if the memory is mismatched with CMOS. Detection and installation of fixed parallel ports.
85 .The size of the memory has been checked; Soft errors and passphrases or bypass arrangements are about to be displayed. .
86 .The password has been checked; Programming before the bypass arrangement is about to begin. Turn the programmable IO device back on and detect if there is a fixed IO for conflicts.
87 .Finalize the programming before arrangement; Programming of the CMOS arrangement will be carried out. .
88 .Restore the clear screen from the CMOS scheduler; Later programming is coming soon. Initialize the BIOS datazone.
89 .Programming after completion of the arrangement; The power-on screen information will be displayed soon. .
8a .Displays the first screen information. Perform extended BIOS datazone initialization.
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86 It's all right. Keyboard and mouse connected, normal.
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There is no specific meaning to 86, the motherboard should be able to light up.
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IO device conflicts, check if there is a problem with the keyboard and mouse and whether there is a conflict with the hard disk optical drive data cable.
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Do the bridge is estimated to be the problem of the board can't turn on the machine, most of it is the problem of the north bridge, can afford to open the hard disk, that is the south bridge
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Drain the battery and power the motherboard to try plugging it in.
Motherboard CPU issues are highly likely.
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1. Set the virus protection function of the boot sector of the hard disk.
3. Test the extended memory.
Unplug the messy memory and graphics card and bury them in the plug
1. Diagnostic display**.
2. Turn off the power and take out all the expansion cards. Insert the diagnostic card into the ISA slot or PCI slot (Note: The component side of the diagnostic card is facing the power supply. If it is plugged in the other way, the card and motherboard will not be damaged, but neither will work. ) >>>More
The motherboard test card shows D4, which means that the memory test failed. >>>More
Motherboard 10 means: test DMA channel 0.
Cause: It may be that the motherboard or CPU is not working properly. >>>More
You still go to Lenovo's after-sales service department I think this should be a software problem The following is the reason I hope it will help you. >>>More
I don't know too much about it, I can't help you, I'm sorry.