From this link http://www.yqcomputer.com/
choose Drivers & Downloads, then choose your model, OS etc..
When there's the page showing categories (Flash - BIOS, Audio, Chipset....)
you need the chipset drivers..
(But I'd get and install all others too. And the BIOS upgrade has to/should
be performed first)
A lot learned from these newsgroups
(translations from/to FI not always accurate