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CompTIA 901 core processing > RAM > Flashcards

Flashcards in RAM Deck (30)
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1
Q

What does RAM stand for?

A

Random Access Memory

2
Q

What does RAM do?

A

RAM is the temporary storage where programs run on your computer

3
Q

How is RAM capacity measured?

A

Gigabytes

4
Q

How is RAM speed measured?

A

Megahertz

5
Q

What was the first type of ram used in computers?

A

DRAM or dynamic RAM

6
Q

What does DIMM stand for?

A

Dual In-line Memory Module

7
Q

What is SDRAM?

A

Synchronous Dynamic RAM, synchronous meaning it was synchronized to the system clock.

8
Q

What are the characteristics of SDRAM?

A

168 pin DIMM, 2 notches. Replaced a lot of older RAM like DRAM.

9
Q

What are PC ratings for?

A

Used to help determine what types of RAM a certain motherboard can use.

10
Q

What does DDR stand for?

A

Dual data rate SDRAM

11
Q

What are the characteristics of DDR?

A

184 pin DIMM, one notch slightly right of center, doubled the motherboard speed.

12
Q

How do you calculate the PC speed for DDR?

A

(Motherboard speed x 2) x 8 = pc—

13
Q

How do you calculate the pc rating for DDR2?

A

Motherboard speed x 4 x 8 = pc2—-

14
Q

PC 400 is an example of what type of ram?

A

DDR

15
Q

PC2 3200 is an example of what type of ram?

A

DDR2

16
Q

What are the characteristics of DDR2 ram?

A

240 pin DIMM, notch almost centered,

17
Q

What are the characteristics of DDR3?

A

240 pin DIMM, notch left of center, quadruples the BUS

18
Q

How is the PC speed of DDR3 calculated?

A

Motherboard speed x 4 x 2 x 8

19
Q

PC3 6400 is an example of what type of RAM?

A

DDR3

20
Q

What is RAMBUS?

A

An old type of ram replaced by DDR, comes in 184 pin RIMM, 2 central notches, had to be installed in twos, any left over sockets needed a CRIMM.

21
Q

What is ECC or Parity memory?

A

Has extra chips designed for error correction, can only be used on motherboards that accept it.

22
Q

What does SODIMM?

A

Small Outline DIMM

23
Q

What are the characteristics of SODIMM?

A

Smaller version of RAM used in laptops, tend to be lower capacity because of their size, but have the same speed as regular RAM. 100, 144, 200, 204 (DDR3 only)

24
Q

What is Dual or Quad channel?

A

You have to put in 2 or 4 sticks

25
Q

What is one thing you should make sure of before installing ram?

A

Same size and same speed within the same channel.

26
Q

Generally what are the two areas of troubleshooting ram?

A

Installation errors, and when the computer shuts down.

27
Q

What should you check after you have installed new RAM?

A

System properties, to make sure the computer sees all the ram

28
Q

What are signs of bad ram?

A

Blue screen of death, random reboots, freezing, melting screen.

29
Q

What is the memory testing tool for windows vista or earlier?

A

Memtest86

30
Q

What is the memory testing tool for Windows 7 and newer?

A

Windows memory diagnostic.