Memory

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Author:
shadrinaff
ID:
8923
Filename:
Memory
Updated:
2010-03-03 01:30:20
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Memory study guide A certification
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Description:
Memory ROM and RAM
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  1. What are the 2 types of memory. Explain the acronyms
    • ROM- Read Only Memory
    • RAM- Random Access Memory
  2. What are the 3 types of ROM:
    • PROM - Programmable Read Only = Firmware
    • EPROM - Erasable Programmable Read Only- Can be done with UV Light
    • EEPROM- Electrically Erasable Program Read Only-Flash *annoying updates
  3. What are the 2 types of RAM
    • SRAM - static RAM (Cache L1, L2, L3) *Best bec built into CPU
    • DRAM- Dynamic RAM
  4. What are the 2 types of DRAM for laptops
    SO DIMM and Micro DIMM
  5. What are the two types of SIMM
    Single Inline Memory Module
    • 30 pin - Can be in FPM (fast page mode) or EDO
    • or 72 pin - EDO (extended data out mode only)
  6. What are the 4 DIMM
    (*Dual Inline Memory Modules)
    • 168-pin - SDRAM
    • 184-pin - DDR-SDRAM
    • 240-pin DDR2- SDRAM
    • 240-Pin DDR3- SDRAM (*New)
  7. What are the 2 RIMM
    Rambus Inline Memory Modules
    • 184-pin DDR-SDRAM
    • 240-pin DDR2-SDRAM
  8. Memory access speeds are measured in:
    nanoseconds, the lower the nanosec the faster the access
  9. What are the memory corrections for SIMMs
    Parity vs. Non parity
  10. 168 DIMM SDRAM - PC133 Standard
    all cycles per clock for SDRAM is 1
    Bus width 8 bytes
    PC133- 7ns chip type-bus speed 133 -transfer rate 1,066 mbs-133MHz
  11. 168 DIMM SDRAM - PC100 Standard
    all cycles per clock for SDRAM is 1
    Bus width 8 bytes
    PC100-8 ns chip type-bus speed 100- transfer rate 800 mbs-100MHz
  12. 168 Pin DIMM -SDRAM PC66 standard
    **Bus Width for all mem cards is 8 bytes
    cycles per clock all SDR is 1
    PC66- 10 ns chip type-bus speed 66- transfer rate 533 mbs-66MHz
  13. 184 DIMM (DDR-SDRAM) - PC1600 standard
    Bus Width for all mem cards is 8 bytes
    cycles per clock all DDR is 2
    PC1600- DDR200 chip type-100 MHz-200 bus speed -1600 mbs transfer
  14. 184 DIMM (DDR-SDRAM) PC2100 standard
    Bus Width for all mem cards is 8 bytes
    cycles per clock all DDR is 2
    PC2100-DDR266 chip type-133 MHz-266 bus speed -2133 mbs transfer
  15. 184 DIMM (DDR-SDRAM) PC2700 standard
    Bus Width for all mem cards is 8 bytes
    cycles per clock all DDR is 2
    DDR 333 chip type- 166 MHz-333 bus speed and 2,667 MBs transfer
  16. 184 DIMM (DDR-SDRAM) PC3200 standard
    Bus Width for all mem cards is 8 bytes
    cycles per clock all DDR is 2
    DDR400 chip type- 200 MHz-400 bus speed - 3,200 transfer rate
  17. 240 DIMM (DDR-SDRAM) PC2-3200 standard
    Bus Width for all mem cards is 8 bytes
    cycles per clock all DDR is 2
    DDR2-400 chip type- 200 MHz- Bus speed 400- 3200 MBs transfer
  18. 240 DIMM (DDR-SDRAM) PC2-4300 standard
    DDR2-533 chip type-266 MHz-533 bus speed-4266 MBs transfer
  19. 240 DIMM (DDR-SDRAM) PC2-5400 standard
    DDR2-667 chip type-333 MHz-bus speed 667- 5333 MBs transfer rate
  20. 240 DIMM (DDR-SDRAM) PC2-6400 standard
    DDR2- 800 chip type- 400 MHz-bus speed 800- 6400 xfer rate
  21. 240 DIMM (DDR-SDRAM) PC2-8500 standard
    DDR2-8500 chip type-533 MHz-bus speed 1066- 8500 MBs xfer rate
  22. what are the 11 sizes of RAM memory sticks:
    • 8MB, 16MB, 32 MB, 64MB, 128 MB, 256 MB, 512 MB, 1GB (= 2 512 MB),
    • 2 GB, 4 GB and 8GB
  23. 3 Rules for install of SIMM (30 or 72 pin)
    • 1. 45 degree angle push up to lock in place
    • 2. must be install equal pairs
    • 3. must populate first two slots of SIMM
  24. 5 rules for install of DIMM (168,184, or 240 pin)
    • 1. open plastic clips on each side of slot for use
    • 2. align the cut-out of the module with engaging pins in slot
    • 3. hold upright press down both ends
    • 4 if correct seated clips with lock automatically
    • 5. can be single pair unless stated dual channel
  25. 6 rules of RIMM install (184 or 232 pin)
    • 1. open platic clips on each side
    • 2. align the cut out and the module pin connector with slot
    • 3. hold upright press down both sides
    • 4. if correct clips will lock auto
    • 5. must populate all RIMM slots available
    • 6. if open slots use dummys- CRIMMs
  26. 240 DIMM DDR3 PC3-6400 standard
    DDR3-400 chip type- 400 MHz- 800 bus speed-6400 speed MBs
  27. 240 DIMM DDR3 PC3-8500 standard
    DDR3-533 chip type-533 MHz-1066 bus speed-8,500 MBs transfer
  28. 240 DIMM DDR3 PC3-10600 standard
    DDR3-667 chip type-667 clock speed-1333 bus speed-10,600 MBs xfer rate
  29. 240 DIMM DDR3 PC3-12800 standard
    DDR3-800 chip type-800 MHz- 1600 bus speed-12800 MBs xfer rate
  30. 240 DIMM DDR3 PC3-16000 standard
    DDR3-1000 chip type-1000 MHz-2000 bus speed-16000 MBs xfer rate

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