Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CompTIA A+ Certification (801 & 802) > Ch 7: RAM > Flashcards

Ch 7: RAM Flashcards

1
Q

What does the ‘S’ in SDRAM mean and how is it different from DRAM?

A

‘S’ stands for synchronous. Synchronous DRAM is tied to the System Clock along with the MCC and CPU.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A CPU is only as fast as the RAM provided OR RAM is only as good as the CPU provided?

A

A CPU is only as fast as the RAM provided. RAM is the bottle neck.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Rambus DRAM was different from mainstream SDRAM because it employed a ______-_______ architecture.

A

Dual-Channel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

RDRAM required 2 RIMMs (sticks) or what in lieu of 2 sticks in order to take advantage of dual-channel architecture?

A

Continuity RIMM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

In 2003, Intel stopped production RDRAM-related motherboards and MCC. What kind of RAM did the PC industry adopt? hint: double-data rate

A

DDR SDRAM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

In order to take advantage of dual-channel architecture, how must the system SRAM be configured?

A

There can ONLY be 2 filled slots. If a 3rd slot is filled the system will use the full amount of RAM, BUT will deactivate the dual-channel feature.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Most common pin count for SDRAM on desktops

A

168-pin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Most common pin count for SDRAM on desktops

A

168-pin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

168-pin DIMMs cater to what type of RAM?

A

SDRAM on desktops

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

168-pin DIMMs cater to what type of RAM?

A

SDRAM on desktops

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

68-pin, 144-pin, 172-pin micro-DIMM, and 200-pin SDRAM applies to what kind of machine?

A

Laptop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

68-pin, 144-pin, 172-pin micro-DIMM, and 200-pin SDRAM applies to what kind of machine?

A

Laptop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When a DIMM is able to take advantage of all 64-bits of the data bus we say that it fills up the…

A

…bank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When a DIMM is able to take advantage of all 64-bits of the data bus we say that it fills up the…

A

…bank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

When a memory module only occupies half of the bits on a data bus, like in some laptops, it is said to only fill up a…

A

half bank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

When a memory module only occupies half of the bits on a data bus, like in some laptops, it is said to only fill up a…

A

half bank

12
Q

What new feature did Rambus DRAM employ?

A

dual-channel memory

12
Q

184-pin memory module denotes what kind(s) of memory?

A

Either desktop RDRAM or DDR SDRAM

13
Q

What is the PC speed rating of DDR550?

A

550 x 8 = PC4400

13
Q

What is the DDR speed rating on a PC 3500 system?

A

3500 / 8 = DDR433

14
Q

Instead of DIMMs, what kind of memory module does RDRAM employ?

A

RIMMs

14
Q

What is the primary difference between DDR and RDRAM?

A

Unlike RDRAM, DDR does not require that all slots be filled. RDRAM requires all banks to be filled with either Continuity RAM sticks or identical RIMMs.

15
Q

What 2 features make DDR2 faster than DDR memory?

A

Input-Output circuits are doubled. Buffers are added.

15
Q

What are the pin counts for DDR2 memory modules?

A

240-pin DIMM, 200-pin SO-DIMM

16
Q

There can be no empty slots in an RDRAM system. What instead must take the place of empty slots?

A

Continuity RIMM

16
Q

There can be no empty slots in an RDRAM system. What instead must take the place of empty slots?

A

Continuity RIMM

17
Q

What new feature did Rambus DRAM employ?

A

dual-channel memory

17
Q

What new feature did Rambus DRAM employ?

A

dual-channel memory

18
Q

How does one obtain a PCxxxx speed rating?

A

Maximum RAM bytes per second x RAM width = PCxxxx

19
Q

What is the PC speed rating of DDR550?

A

550 x 8 = PC4400

20
Q

What is the DDR speed rating on a PC 3500 system?

A

3500 / 8 = DDR433

21
Q

What must be done to take advantage of the dual-channel feature with DDR SDRAM?

A

Identical sticks of RAM must be inserted into paired slots. Refer to the motherboard manual to find out which slots are paired.

22
Q

What is the primary difference between DDR and RDRAM

A

Unlike RDRAM, DDR does not require that all slots be filled. RDRAM requires all banks to be filled with either Continuity RAM sticks or identical RIMMs.

23
Q

What makes DDR2 faster than DDR memory, primarily?

A

Core speed is not increased, but the Input-Output circuits are doubled.

24
Q

What are the pin counts for DDR2 memory modules?

A

240-pin DIMM, 200-pin SO-DIMM

25
Q

What makes DDR3 faster than DDR2?

A

DDR3 doubles the buffer size of DDR2 from 4 bits to 8 bits

26
Q

What is XMP? How does it improve performance?

A

Extended Memory Profile. Power Users can overclock the RAM speed.

27
Q

30% less electricity consumption is the advantage of which type of RAM?

A

DDR3

28
Q

Some DDR3 motherboards support how many channels?

A

Triple Channel Memory

CompTIA A+ Certification (801 & 802) (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions