Flashcards
Memory Technologies
Flashcards do conjunto (19)
- 1List RAM DIMMs184 pin DDR
240 pin DDR2
240 pin DDR3
288 pin DDR4 - 2List RAM SODIMMs200 pin DDR
200 pin DDR2
204 pin DDR3
260 pin DDR4 - 3What are DIMMs?dual in-line memory module containing one or several RAM chips that connect to an expansion bus on the motherboard.
- 4What are SODIMMs?small outline dual-in memory module. Smaller than DIMMs
Commonly found on smaller technologies - 5What is DRAM?Dynamic Random Access Memory
Found on DIMM’s
Legacy tech that would need to be constantly refreshed - 6What is SDRAM?Synchronous DRAM
Type of DRAM (found on today’s tech)
Queue’s to FSB clock - 7What is multichannel memory?Having multiple memory modules installed on an expansion bus.
- 8How many types of multichannel memory that exist?Dual channel, triple channel, and quad channel
- 9How much voltage does DDR2 use?1.8v
- 10How much voltage does DDR3 use?1.5v
- 11How much voltage does DDR4 use?1.2v
- 12What is the formula to calculate the throughput of SDRAM ?Speed rate x 100mhz = FSB clock cycle
FSB clock cycle x 8bytes per operation= throughput - 13When looking at the packaging of SDRAM, what does the value at the end refer to ( i.e. DDR2-400)?The value refers t how many chips the memory module has
- 14When using multichannel memory modules, what do they need to be?They need to be identical to be fully functional
- 15What happens when you have a multi-channel memory module that has chips on both sides?The computer will see it as acting as filling 2 spots. So if you have quad-channel memory and you have a memory module that has chips on both sides it virtually using 2 spots when installed even if it is physically installed in one spot.
- 16What is parity memory?Parity adds one bit of data at the end of a piece of information to just make sure that when it gets delivered the value is the same as predicted when it arrives at its destination.
- 17What happens when the parity bit is not the same?The whole piece is throw out and must be resent.
- 18What is ECC?Error Correcting Code
Like parity it sends a bit of data that checks if the info is correct but can also detect an error as well as correct it. - 19—
Informações
- Descrição
- RAM, memory types, memory storage devices, memory technologies
- Criado por
- Jessica Rizo
- Visualizações
- 10
- Tags
- Histórico
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- Criado por Shelby Hartsell · 24 dez 2016
- Copiado por Jessica Rizo · 4 abr 2020
- Avaliação