Computer device and memory startup method of computer device

A computer device, comprising

• a memory comprising a first memory part, a second memory part, and instructions;
• a processor coupled to the memory and running an operating system (OS);
• and
• a basic input/output system (BIOS) coupled to the processor and the memory, wherein the BIOS is configured to:
• initialize the first memory part in a memory initialization phase to create an initialized first memory part when the computer device is powered on and started, wherein the first memory part is a preset memory part, and wherein the initialized first memory part satisfies a memory requirement for startup of the OS;
• initialize the second memory part other than the first memory part after the OS is started to create an initialized second memory part;
• test, by the BIOS, the initialized second memory part to create an initialized and tested second memory part;
• notify the OS of the initialized and tested second memory part to instruct the OS to detect the initialized and tested second memory part, wherein the OS is configured to:
• in response to the notification by the BIOS, further initialize the initialized and tested second memory part after completing startup of the OS to create a further initialized second memory part, wherein the OS does not retest the initialized and tested second memory part created by the BIOS prior to further initialization of the initialized and tested second memory part, and wherein the further initialized second memory part is configured as available memory for use by the OS;
• add the further initialized second memory part to the available memory for use by the OS;
• wait for a preset time when a size of the further initialized second memory part does not satisfy a memory size required by a to-be-started process of the OS;
• and
• start the to-be-started process of the OS when the size of the further initialized second memory part satisfies a requirement of the to-be-started process of the OS.