Datasheet

Answers to Review Questions

1. PCI and AGP. The third type is ISA.

2. Possible answers include: (1) position of CPU, (2) expansion slot orientation, (3) built-in

ports on the side, (4) one-piece power supply connector, (5) physical size and shape of the

motherboard, and (6) type of keyboard connector.

3. They are the two types of slots/sockets for CPUs in motherboards. PGA is the type with a

grid of holes into which pins ﬁt on a ﬂat chip. SECC is the type that accepts a circuit board

surrounded by a cartridge. Whenever you see socket in the name, it’s always a PGA type.

SECC types have slot in the name.

4. +5V, –5V, +12V, and –12V for all power supplies, plus +3.3V for an ATX power supply.

5. The internal speed is a multiple of the external speed.

6. The L2 cache.

7. To provide different voltages for different CPUs.

8. Error detection.

9. Yes. One of the components the POST checks is the RAM.

10. It may be disabled in BIOS Setup; try enabling it there.

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