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SPD is a small ROM or
EEPROM
module information such as DRAM timing and chip parameters. SPD can be used by
decide best timing for this DIMM or RIMM.
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UltraATA (or, more accurately, UltraATA/33) is a protocol for transferring data between a hard
disk drive through the computer's data path (or bus) to the computer's random access memory
(RAM). The UltraATA/33 protocol transfers data in burst mode at a rate of 33.3MB/s, twice as
fast as the previous
Direct Access Memory (DMA)
proposed industry standard by the Quantum corporation, makes of hard disk drives, and Intel,
makes of chipset that support computer bus technology. UltraATA support in your computer
means that it will boot (start) and open new applications more quickly. It will help users of
graphic-intensive and applications that require large amounts of access to data on the hard disk
drive. UltraATA uses Cyclical Redundancy Checking (CRC), offering a new level of data
protection. UltraATA uses the same 40-pin IDE interface cable as PIO and DMA.
16.6MB/s x2 = 33MB/s
16.6MB/s x4 = 66MB/s
16.6MB/s x6 = 100MB/s
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device resided on the
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DIMM
or RIMM. SPD stores memory
interface. UltraATA was developed as a
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