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What does the Southbridge part of a motherboard control?

  1. AGP, PCIe and Memory

  2. CPU, RAM, ROM

  3. SATA, SCSI, RAID

  4. PCI, IDE, USB, ISA

The correct answer is: PCI, IDE, USB, ISA

The Southbridge part of a motherboard is responsible for controlling the slower and less important components of the computer system such as PCI, IDE, USB, and ISA. Option A is incorrect because AGP, PCIe, and memory are controlled by the Northbridge part of a motherboard. Option B is incorrect because the CPU and RAM are linked to the Northbridge instead. Option C is incorrect because SATA, SCSI, and RAID are also controlled by the Southbridge, not the Northbridge. So, option D is the most appropriate answer.