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Anonymous users2024-02-061. 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. )
3. Turn on the power supply and check whether the indication of each light-emitting diode is normal (the BIOS signal light may be flashing).
4. If it is abnormal, turn off the power supply, refer to the following "indicator function cheat sheet" to troubleshoot, and return to step 3 after the error is completed.
RUN light (bus pulse) – This light will flash if the motherboard runs the command, otherwise it will not.
CLK Light (Bus Clock) – CLK signal from the ISA, PCI for a desktop or MiniPCI bus for a laptop.
BIOS (BIOS Read Signal) - When the diagnostic card is plugged into the ISA bus slot, it flashes when the motherboard is running for a read operation to the BIOS. The opposite is true for the four-digit diagnostic card.
iray (master ready) - only lights up when there is an iray signal, otherwise it doesn't. frame (frame period signal) - the light will only flash when the pci slot or minipc slot has a cyclic frame signal.
OSC (ISA oscillation) - is the main oscillation signal of the ISA slot, and the empty board should be always on when it is energized; Otherwise, the crystal oscillation circuit of the motherboard does not work without the OSC signal.
RST (Reset) - It is normal to turn on the device or turn off for half a second after turning on or pressing the reset switch; If it is not extinguished, it is often because the reset pin on the motherboard is misconnected to the accelerator switch or the short circuit, or the reset circuit is bad.
12V (power supply) - the empty board should be on when it is powered on. Otherwise, there is no such voltage or there is a short circuit in the motherboard. -12V (Power) – Same as above. -5V (power supply) – Same as above (only the ISA slot has this voltage). 5V (Power) – Same as above.
Power supply) - the PCI of the desktop microcomputer and the unique voltage of the miniPC slot of the notebook, the empty board should be always on when the power is on, and the PCI slot or miniPC slot of some motherboards has no voltage, so it is not lit.
5. Check whether there is a mistake in post**.
6. If there is a mistake, turn off the power, troubleshoot according to the "post** meaning", and return to step 3 after the error is completed.
7. Turn off the power supply, plug in the graphics card, IO card, hard drive and expansion card, then turn on the power and check the post**.
8. If there is a mistake with post**, turn off the power, troubleshoot according to the meaning of "post**", and return to step 3 after the error is completed.
9. The test result is normal. The self-test should be successful.
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Anonymous users2024-02-05The definition of different BIOS** is also different.,I wanted to write it all down.,But it's more than the 9999-word limit.,Open the following **I hope it will help you.。
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
Reinstall the system first, or so, that is, the CPU is too hot. Fan to see if there's a problem. ,You're two memory sticks.,Swap it.,Your machine should be an integrated graphics card.,There's no problem with the motherboard.。 >>>More
It's not that you can't use alcohol, but when you use it, you can see if it's anhydrous alcohol, if not, it's best not to use it. >>>More
Your memory and graphics card are relatively small, but you are okay, the system is not to say that the latest is the best, to your memory should. >>>More
I've had this happen to me, and I think the internet is too slow. But in this case, the system should occupy too much memory, and it is recommended to use Master Lu to clean it up thoroughly!