A server, comprising a graphics card and further comprising a signal selection switch, an out-of-band system, and a basic input/output system, BIOS, module, wherein the out-of-band system comprises a baseboard management controller, BMC, module and a hardware system in which the BMC module runs, wherein: the BMC module is configured: to send, before receiving a switch switching instruction that is sent by the BIOS module when the BIOS module runs to a preset process, a first control instruction to the signal selection switch; the signal selection switch is configured: to connect according to the first control instruction, an out-of-band central processing unit, CPU, to the graphics card, wherein the out-of-band CPU is in the hardware system in which the BMC module runs; the BMC module is further configured: to receive, after the out-of-band CPU connects to the graphics card, presentation information that is sent by the BIOS module, wherein the presentation information comprises initialization progress information of initialization performed by the BIOS module for the hardware in the server; to present the presentation information by using the graphics card; to receive the switch switching instruction sent by the BIOS module; and to send according to a switch switching instruction, a second control instruction to the signal selection switch, so that the signal selection switch switches the graphics card from being connected to the out-of-band CPU to being connected to a CPU or a platform controller hub, PCH, of the server; and the BIOS module is configured: to send when running to a preset process, the switch switching instruction; wherein the preset process refers to a process of performing an initialization operation on a peripheral component interconnect express, PCIE, expansion card; and is further configured: to present after running to the preset process, the presentation information by using the graphics card. the BMC module is configured: to send, before receiving a switch switching instruction that is sent by the BIOS module when the BIOS module runs to a preset process, a first control instruction to the signal selection switch; the signal selection switch is configured: to connect according to the first control instruction, an out-of-band central processing unit, CPU, to the graphics card, wherein the out-of-band CPU is in the hardware system in which the BMC module runs; the BMC module is further configured: to receive, after the out-of-band CPU connects to the graphics card, presentation information that is sent by the BIOS module, wherein the presentation information comprises initialization progress information of initialization performed by the BIOS module for the hardware in the server; to present the presentation information by using the graphics card; to receive the switch switching instruction sent by the BIOS module; and to send according to a switch switching instruction, a second control instruction to the signal selection switch, so that the signal selection switch switches the graphics card from being connected to the out-of-band CPU to being connected to a CPU or a platform controller hub, PCH, of the server; and to receive, after the out-of-band CPU connects to the graphics card, presentation information that is sent by the BIOS module, wherein the presentation information comprises initialization progress information of initialization performed by the BIOS module for the hardware in the server; to present the presentation information by using the graphics card; to receive the switch switching instruction sent by the BIOS module; and to send according to a switch switching instruction, a second control instruction to the signal selection switch, so that the signal selection switch switches the graphics card from being connected to the out-of-band CPU to being connected to a CPU or a platform controller hub, PCH, of the server; and the BIOS module is configured: to send when running to a preset process, the switch switching instruction; wherein the preset process refers to a process of performing an initialization operation on a peripheral component interconnect express, PCIE, expansion card; and is further configured: to present after running to the preset process, the presentation information by using the graphics card.