Mini PC can’t start up, screen is not displaying

BIOS malfunction: After pressing the power button, repeatedly press F7 without interruption to see if you can enter the BIOS interface. If you can enter the BIOS interface, everything is fine. You can press F3 or F9 to reset the BIOS, and then press F4 or F10 to save the changes (a prompt in the bottom right corner of the BIOS will tell you which keys to use for resetting and saving). If the issue is still not fixed after restarting the computer, you may need to reisntall the windows or replace the hard drive.
Can not enter the bios: If the above operation cannot enter BIOS，You can check the user manual to find the reset pinhole, then use a paperclip to reset the BIOS. If your Mini PC does not have a reset button or pinhole, you need to open the Mini PC. Find the button battery that powers the BIOS, and disconnect it from the motherboard to reset the BIOS.You can find the mini PC you purchased on the support page and see if there is a detailed tutorial on resetting the BIOS.Then proceed with the First item check.
Memory malfunction: If you’ve tried all the methods above and still can’t start the computer, and you can’t enter the BIOS by pressing F7, you can try replacing the memory. If you’re using unknown memory, it may be incompatible with the computer. You need to replace it with memory from well-known brands like Samsung, Kingston, Hynix, Intel, Micron, etc. If you’re using memory from a reputable brand or provided by Chatreey, you can try removing one memory stick (if your mini PC is dual-channel memory) and using one stick to check for faults. If the fault still exists, you can insert another memory stick into the other memory slot of the mini PC to check if one of the memory sticks or one of the memory slots is faulty. When you detect a faulty memory stick, you can contact your memory supplier to replace the memory. If both memory sticks fail to work properly, you need to contact the supplier of the mini PC to replace the mini PC.
Adding to the third point: If your computer supports DDR5 memory, then the first time you boot it up, the computer’s BIOS might take 5 to 15 minutes to recognize the newly installed DDR5 memory. During this period, the computer will remain on a black screen and won’t boot up. This isn’t a computer malfunction. it’s just that the first time you boot up, the computer needs more time to recognize the memory and save its data, hence it takes longer to start. After the computer boots up normally, the boot time will return to normal from the second boot onwards. However, if you upgrade or replace the memory, or if the BIOS battery is dead, or if you’ve updated the BIOS, then the BIOS will need to read and save the memory data again. In this case,The best thing to do after starting up is not to do anything and wait for 15 minutes to see if the computer returns to normal.

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