RAM

Question 1

RAM stands for what?

Answer 1

Random access Memory

Question 2

What is one disadvantage of RAM?

Answer 2

RAM is typically cleared when computer is powered off

Question 3

Memory Controller Chip is where?

Answer 3

Part of a chipset that helps the CPU store and receive data to/from RAM. or Memory controller is integrated with the CPU

Question 4

VOLATILE

Answer 4

Loses content if it loses power

Question 5

NVRAM is what?

Answer 5

Non Volatile random access memory

Question 6

SRAM is what?

Answer 6

Static Random Access Memory

Question 7

What are the advantages of SRAM?

Answer 7

Does not need to be refreshed, Soldered directly to a PCB - Printed circuit board. I.e. Motherboard OR integrated directly to chip

Question 8

DRAM is what?

Answer 8

Dynamic random-access memory

Question 9

What are the disadvantages of DRAM?

Answer 9

Does need to be periodically refreshed, Slower than SRAM, you must replace and troubleshoot DRAM

Question 10

Another word for DIMM is?

Answer 10

Volatile Sticks

Question 11

SDRAM

Answer 11

Synchronous DRAM

Question 12

What does SDRAM do?

Answer 12

Syncs to base clock of mobo (system bus speed)

Question 13

SDRAM sticks referred to as?

Answer 13

PC66, PC100, etc based on the Clock rates ie PC66 = 66MHz

Question 14

SDRAM pins?

Answer 14

168 pin DIMM

Question 15

DDR3

Answer 15

Lower power consumption and higher levels of performance, 1.2-1.5 V, 240 pins

Question 16

DDR2

Answer 16

Decreases voltage to 1.8 V and increases speed 240 pins - faster signaling

Question 17

How to find the Data Transfer Rate?

Answer 17

Standard x 8 = Data Transfer Rate DDR400 400*8=3200

Question 18

DDR

Answer 18

184 Pins, Synchronized to base clock of mobo, 2.5 Volts

Question 19

Single Channel

Answer 19

64-bit bus, One or more sticks of RAM can be installed on the motherboard but they share the same channel.

Question 20

Dual Channel

Answer 20

128-bit bus To use dual channel architecture you need to install two identical sticks of RAM

Question 21

Triple Channel

Answer 21

192-bit bus, Limited to Intel Core i7-900 series processors and the LGA 1366 socket

Question 22

Single Sided Memory Modules

Answer 22

The computer can address all the chips at once.

Question 23

Double Sided Memory Modules

Answer 23

Chips divided into two “sides” known as banks. only one side can be seen by the computer at once.

Question 24

RAM Parity

Answer 24

When memory stores an extra bit (parity bit) used for error detection. So mem module can store 9 bits instead of 8 bits for every byte of data. Required for data integrity.

Question 25

ECC

Answer 25

Error Correction Code in RAM Usually identified with an E. I.e. PC3-10600E

Question 26

Memory Latency

Answer 26

Happens when a memory controller tries to access data from a memory module. Slight delay (measured in nanoseconds)