Memory Module Specifications Flashcards
What are the characteristics of Dual Inline Memory Modules? (DIMMS)?
- Printed Circuit Board (PCB) type used as a placeholder for memory chips
- Separate electrical contacts on each side of the module
- 64-bit data path
- Used with various SDRAM memory types (SDR, DDR, DDR2, and DDR3)
For SDR SDRAM (Single Data Rate) memory every single clock cycle there is a single piece of data transferred. True or False?
True
For DDR SDRAM (Double Data Rate) memory, every clock cycle you can send double the amount of data opposed to SDR Ram. True or False?
True.
- Twice as fast as SDR (single data rate)
- Twice as much information in exactly the same clock time as SDR memory.
How many pins does a SDR SDRAM have?
168 Pins.
Why is SDRAM (Synchronous Dynamic Random Access Memory) called “Synchronous”?
It’s synchronized with the clock that’s inside the computer (the system bus).
How many pins does DDR SDRAM have?
184 Pins.
- How many transfers per second does a DDR-200 Perform?
- What is it’s total data throughout in MB/s?
- What is it’s module name?
- 200 Million.
- 1,600 MB/s
- PC1600
What are the characteristics of Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM) ?
- 184 contact pins
- Reads/writes 2 words of data per clock cycle
- 1 notch on the module contact surface
What are the characteristics of Double Data Rate 2 Synchronous Dynamic Random Access Memory (DDR2 SDRAM)
- Reads/writes 4 words of data per clock cycle
- 1 notch on the module contact surface
- 240 contact pins
What are the characteristic features of the Double Data Rate 3 Synchronous Dynamic Random Access Memory (DDR3 SDRAM)?
- 1 notch on the module contact surface
- 240 contact pins
- Reads/writes 8 words of data per clock cycle
Taking advantage of the performance benefit offered by the multi-channel memory architecture does not require memory modules of matching speeds
False.
The memory modules need to have matching speeds
What’s the module name of DDR2-800?
PC2-6400
How many pins does a SO-DIMM SDRAM DDR and DDR2 have?
200 pins.
How many pins does a SO-DIMM SDRAM DDR3 have?
204 pins.
How many pins does a Micro-DIMM SDRAM DDR have?
172 pins.