CompTIA A+ Cert Exam Guide Ch. 7 Flashcards
RAM
Random Access Memory
DRAM
Dynamic Random Access Memory
What purpose does RAM serve?
When an application runs, Windows copies the application to RAM
SIMM
Single Inline Memory Module
SDRAM
Synchronous Dynamic Random Access Memory
DIMM
Dual Inline Memory Module
What were the common SDRAM DIMM pin sizes?
Desktops:
• 168-pin
Laptops: • 68-pin micro-DIMM • 144-pin micro-DIMM • 172-pin micro-DIMM • 72-pin small-outline DIMM • 144-pin small-outline DIMM • 200-pin small-outline DIMM
What is a bank?
A slot on the motherboard in which a DIMM could fill the 64-bit bus
Which SDRAM DIMM chip did not fill the 64-bit bus?
The 32-bit 72-pin SO-DIMM chip
What 5 clock speeds were commonly used on early SDRAM systems?
66, 75, 83, 100, and 133 MHz
T or F, the SDRAM was tied to the system clock speed so its clock speed matched the frontside bus.
True
What is RDRAM?
Rambus Dynamic Random Access Memory
What is RIMM?
The letters of RIMM have no meaning. They were a name given to match the names SIMM and DIMM
What sizes did RIMMs come in?
184-pin for desktops
160-pin SO-RIMM for laptops
What were the speed ratings of RDRAM?
600 MHz, 700 MHz, 800 MHz, or 1066 MHz
Explain the dual-channel architecture of RDRAM?
Each RIMM was 64-bits wide, but the RAMBUS MCC alternated between two sticks of RAM to speed up data retrieval. This required that you install RIMMs in pairs.
RDRAM motherboards required all slots to be populated. Unused slots could be filled with continuity RIMM (CCRIMM) to properly terminate the system.