RAM

Question 1

DDR2 SDRAM - List Memory Clock, Bus Clock, Data rate, and Transfer rate.

Answer 1

MC - 100-266 MHz
BC - 200- 533 MHz
DR - 400-1066 MT/s
TR - 3.2-8.553 GBPS

Question 2

DDR3 SDRAM - List Memory Clock, Bus Clock, Data rate, and Transfer rate.

Answer 2

MC - 100 to 266 MHz
BC - 400 to 1066 MHz
DR - 800 to 2133 MT/s
TR - 6.4 to 17.066 GBPS

Question 3

DDR4 SDRAM - List Memory Clock, Bus Clock, Data rate, and Transfer rate.

Answer 3

MC - 200 to 400 MHz
BC - 800 to 1600 MHz
DR - 1600 to 3200 MT/s
TR - 12.8 to 25.6 GBPS

Question 4

DDR-200 - List PC number name, Memory Clock, Bus Clock, Data rate, and Transfer rate.

Answer 4

PC-1600
MC - 100 MHz
BC - 100 MHz
DR - 200 MT/s
TR - 1.6 GBPS

Question 5

DDR-266 - List PC number name, Memory Clock, Bus Clock, Data rate, and Transfer rate.

Answer 5

PC-2100
MC - 133 MHz
BC - 133 MHz
DR - 266 MT/s
TR -2.1 GBPS

Question 6

DDR-333 - List PC number name, Memory Clock, Bus Clock, Data rate, and Transfer rate.

Answer 6

PC-2700
MC - 167 MHz
BC - 167 MHz
DR - 333 MT/s
TR - 2.7 GBPS

Question 7

DDR-400 - List PC number name, Memory Clock, Bus Clock, Data rate, and Transfer rate.

Answer 7

PC-3200
MC - 200 MHz
BC - 200 MHz
DR - 400 MT/s
TR - 3.2 GBPS

Question 8

Explain what 1600/PC-312800 means when given the example DDR3-1600/PC312800

Answer 8

The memory works at 200 MHz and the bus at 800 MHz, which with the double data rate gives 1600 MT/s and nominal transfer rate of 12.8 GBps. The 1600 in teh pc number stands for the data rate, the 3 stands for DDR3 and the 12800 stands for the transfer rate which is 12.8 gbps.

Question 9

How many pins are on DDR RAM Memory? Voltage Range?

Answer 9

184 pins

2.5-2.6v

Question 10

How many pins are on DDR2 RAM Memory? Voltage Range?

Answer 10

240 pins

1.8-1.9v

Question 11

How many pins are on DDR3 RAM Memory? Voltage Range?

Answer 11

240 pins

1.35-1.5v

Question 12

How many pins are on DDR4 RAM Memory? Voltage Range?

Answer 12

288 pins

1.2v

Question 13

How many pins are on a DDR SODIMM

Answer 13

200

Question 14

How many pins are on a DDR2 SODIMM

Answer 14

200

Question 15

How many pins are on a DDR3 SODIMM

Answer 15

204

Question 16

How many pins are on a DDR4 SODIMM

Answer 16

260

Question 17

What is single channel memory?

Answer 17

There is one 64-bit bus between the CPU and RAM.

Question 18

What is Dual Channel memory

Answer 18

There can effectively be two pathways through the bus to the CPU, meaning that 128 bits of data can be transferred per “transaction” rather than 64 bits.

Question 19

What is Error Checking and Correcting memory?

Answer 19

ECC memory is enhanced parity circuitry that can detect internal data errors and make corrections. ECC will detect and correct single-bit errors and allow the system to continue functioning normally.

Question 20

What does DDR SDRAM stand for?

Answer 20

Double Data Rate Synchronus Dynamic Random Access Memory

Question 21

What does MT/s stand for

Answer 21

Mega Transfers per second

Question 22

What does SDRAM mean?

Answer 22

SDRAM is so-called because it is synchronized to the system clock.