How to realize the exchange of fire between independent graphics card and integrated graphics card

Sorry, I can't. First of all, the technology of crossing firewire is the patent of ATI(AMD) graphics card. Whether the common crossfire multi-channel graphics card is parallel or hybrid crossfireX, ATI is definitely the first graphics card involved, while NVIDIA GeForce 9300 series graphics cards are N cards, so it is impossible to form CrossFire with one card. ATI Radiron HD 3200, which is integrated on AMD 780G chipset, can only form a "40+40" mode symmetrical mixed crossfire with ATI Radiron HD 2400/3450/3470 and other low-end graphics cards with 40-stream processors, and the performance of mixed crossfire is not as good as that of mainstream high-end graphics cards. To some extent, mixed crossfire has no practical value.