What are the two possible numbers of pins on a DIMM?

| September 28, 2018

Chapter 4 Exercises

Multiple Choice
Select the best answer.

1. What are the two possible numbers of pins on a DIMM?
a. 168 or 184
b. 30 or 72
c. 184 or 232
d. 128 or 256

2. ______________ is DRAM that runs in sync with the system
clock and thus runs faster than other types of DRAM.
a. SIMM
b. Synchronous DRAM
c. Asynchronous DRAM
d. RIMM

3. Instead of using parity checking, newer memory uses a
method of error checking called ___________.
a. mapping
b. nonparity
c. non-EKG
d. ECC (error-correcting code)

4. How many notches are on a DDR SDRAM module?
a. one
b. two
c. four
d. six

5. Under Windows 2000 and Windows XP, the default size of
the paging file is set to ___ times the amount of RAM installed.
a. 128
b. 2
c. 1.5
d. 16

Fill-in-the-Blank
Write the word or phrase to fill in the blank in each of
the following questions.

1. Memory caching relies on SRAM chips to store data and a
____________ to manage the storage and retrieval of data from SRAM.
2. Instead of processing data for each beat of the system
clock like regular SDRAM, _______________ processes data twice for each beat,
thus doubling the data rate of memory.
3. Computers use one or two methods to detect memory:
___________, which uses resistors to communicate the type of memory present,
or_____________, which stores information about the memory type in ROM.
4. Ads for DIMMs often list the ________ of the module,
which is written as two numbers separated by an X, such as 16X64.
5. DRAM is refreshed by the ____________, is a circuit in
the chip set on the motherboard that control the reading and writing of
information from and to the memory.

Match the terms with their definitions.

__
1. bank

a. placeholder module used with RIMMs to ensure continuity
throughout all slots

_
2. SIMM

b. memory module that houses RDRAM chips

__
3. refresh

c. memory above 1024K used in DOS or Windows 9x

__
4. virtual memory

d. method of using the hard drive as though it were RAM

__
5. DIMM

e. process of rewriting the data to the RAM chip.

__
6. PC100

f. memory module with pins on opposite sides of the
circuit board that form a single set of contacts

__
7. C-RIMM

g. swap file used by Windows 2000 and Windows XP

__
8. extended memory

h. memory module with pins on opposite sides of the
circuit board that form two sets of contacts

__ 9. RIMM

i. a location on the motherboard that contains slots for
memory modules

__
10. Pagefile.sys

j. speed of memory module that will work with a
motherboard that runs at 100 MHz

Short Answer Questions
Write a brief answer to each of the following questions.

1. If your motherboard supports DIMM
memory, will RIMM memory work on the motherboard?
2. If your motherboard
supports ECC SDRAM memory, can you substitute SDRAM memory that does not
support ECC? If your motherboard supports buffered SDRAM memory, can you
substitute unbuffered SDRAM modules?
3. List at least four
things you can do if you receive memory errors during a memory upgrade.
4. List at least four
things you can do if you receive memory errors during normal operation when you
have not recently upgraded memory.
5. What are factors,
in addition to speed, that determine how fast memory runs?

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