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Power Memorina within Six PCs. ECC memory usually involves a higher price when compared to non-ECC memory, due to additional hardware required for producing ECC memory modules, and due to lower production volumes of ECC memory and associated system hardware.

One advantage of keeping the clock frequency down is that it reduces the signal integrity requirements on the circuit board connecting the memory to the controller.

Синхрона динамичка меморија са случајним приступом

During an access, four bits were read or written to or from a four-bit-deep prefetch queue. You May Also Like. ECC also reduces the number of crashes, that are especially unacceptable in multi-user server applications and maximum-availability systems.

Retrieved from ” https: Please provide a valid price range. Memorrija from ” https: This kit was removed from a Celeron based notebook, and such, should be suitable for meemorija laptop of a similar era. However, latency is greatly increased as a trade-off.

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Синхрона динамичка меморија са случајним приступом — Википедија, слободна енциклопедија

Custom Memofija see all. A simulation study showed that, for a web browser, only a small fraction of memory errors caused data corruption, although, as many memory errors are intermittent and correlated, the effects of memory errors were greater than would be expected for independent soft errors.

This scope will subsequently be expanded to formally apply to x32 devices, and higher density devices as well. From Wikipedia, the free encyclopedia.


In systems without ECC, an error can lead either to a crash or to corruption of data; in large-scale production sites, memory errors are one of the most emmorija hardware causes of machine crashes. However, further confusion has been added to the mix with the appearance of budget and mid-range graphics cards which claim to use “GDDR2”. DDR2 started to become competitive against the older DDR standard by the end ofas modules with lower latencies became available.

Thanks to built-in EDAC functionality, spacecraft’s engineering telemetry reported the number of correctable single-bit-per-word errors and uncorrectable double-bit-per-word errors.

Memofija current microprocessor memory controllers, including almost all AMD bit offerings, support ECC, but many motherboards and in particular those using low-end chipsets do not. Many early implementations of ECC memory mask correctable errors, acting “as if” the error never occurred, and only report uncorrectable errors. As an example, the spacecraft Cassini—Huygenslaunched incontained two identical flight recorders, each with 2. Such error-correcting memoryknown as ECC or EDAC-protected memory, is particularly desirable for high fault-tolerant applications, such as servers, as well as deep-space applications due to increased radiation.



Show only see all. In other projects Wikimedia Commons. By using this site, you agree to the Terms of Use and Privacy Policy. Look at pictures for details. Shop by Number of Modules.

Implicitly, it is assumed that the failure of each bit in a word of memory is independent, resulting in improbability of two simultaneous errors. An ECC-capable memory controller can detect and correct errors of a single bit per bit ” word ” the unit of bus transferand detect but not correct errors of two bits per bit word.

ECC memory – Wikipedia

Due to light and screen difference, the item’s color may be slightly different from the pictures. During the first 2. Form Factor see all. It also equals number of ranks rows multiplied by DDR memory bus width. DDR2 was introduced in the second quarter of at two initial clock rates: Bandwidth is calculated by taking transfers per second and multiplying by eight. Through techniques including reduced voltage supply and advanced refresh options, Mobile DDR can achieve greater power efficiency.