It is very unlikely that you would find this intellectual property of Biostar, a boardview or circuit diagrams, unless you have an insider that works for them and is willing to smuggle out that data.
Instead you would look at the ICs you can identify and see if their manufacturers provide datasheets, hopefully with example circuits that you can compare to what you see on the motherboard.
If you truly meant chipset level repair then just desolder the chip, examine it and determine if worthy of a resolder attempt or whether you need a new IC.
If “not triggering” means simply that it won’t POST, you have not told use what troubleshooting steps you have taken thus far and what leads you to believe it is an electronic failure rather than someone more common like a dead CMOS battery or EEPROM corruption, or whether you have validated the integrity of supporting components such as CPU and memory, assuming you have at least disassembled the system the motherboard was installed in and removed all non-ancillary components until there is only CPU and memory, and of course a video card if you want video output. Does it even have a speaker connected to provide beep codes?
These are questions not for you to answer here in this forum but rather to consider as you have not yet indicated what evidence there is of a chipset, or IC of any kind – problem.
Regardless I am not a motherboard repair expert and even at that, I recognize that we cannot provide the level of help that you need to progress further on this repair. It is beyond the scope of what a web forum can provide, given the information presented.