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A+ 1011 > RAM > Flashcards

RAM Flashcards

1
Q

SD RAM

A

Synchronous dynamic random access memory, the original RAM
• has two notches
• runs at same speed as mother board

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2
Q

DDR RAM

A

Double data rate RAM, for one clock you get two bits

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3
Q

DDR speed

A

Twice the clock speed

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4
Q

PC speed rating

A

Same as DDR but in bits, DDR x8

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5
Q

DDR 2

A

Twice as fast as DDR
240 pin

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6
Q

Core RAM Clock Speed

A

Same speed as mother board

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7
Q

DDR 2 Speed

A

4x faster than core speed

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8
Q

DDR 3

A

Speed doubled from DDR2, 240 pins still

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9
Q

DDR4

A

288 pin stick
Bandwidth -MT/S

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10
Q

Are all mobos and RAM compatible?

A

No, different mobos support different RAM tech

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11
Q

Double sided RAM

A

RAM on both sides, some mobos can’t use

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12
Q

Channels

A

A slot for RAM different mobos have different amount of slots

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13
Q

Duel channel memory

A

Have to put at least two matching RAM sticks in the channels

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14
Q

Triple Channel

A

Have to have at least three RAM sticks

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15
Q

Best practice when selecting RAM sticks

A

Best practice is to put RAM that all have the same speed but the capacity can vary

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16
Q

RAM Parity

A

An extra chip on RAM that allows RAM to still function if one chip is bad

17
Q

ECC

A

Error Correction Code

An extra chip on RAM that allows RAM to still function if two chip is bad
Only certain mobos support it

18
Q

SO-DIMM

A

Small outline dual inline memory module
Smaller to be able to fit in smaller areas

19
Q

SPD

A

Serial presence detect chip
Tiny chip that allows a system to get information about the RAM

20
Q

Virtual memory/RAM

A

Virtual spaces used by the computer when it runs out of RAM
Slows the computer down
Paging file

21
Q

Installing RAM

A
  1. Open clasp on one side
  2. Place RAM in
  3. Gently push down until it clicks in

A+ 1011 (9 decks)

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