Not a direct answer to your question, but what about a literal remote start?
https://www.amazon.com/SilverStone-Wireless-Function-Feedback-ES02-PCIE/dp/B075ZMPKW6/
SilverStone wireless remote na pci-e. Meron din sila usb 2.0 version, pero mas oks pci-e slot. Just install it dun sa pciex1 mo (underneath gpu), connect to power button pins ng motherboard mo then yun na. Pwede mo rin idaisy chain yung connector from your case para gumana din case mo. Meron din siya pang reset
https://www.amazon.com/gp/product/B075ZMPKW6
Pero baka meron din sa shopee