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MarcoDuff
19-08-2002, 20.56.00
Dalle note tencniche di una scheda madre ho letto:
La memoria di sistema espandibile fino a 3 GB tramite 4 slot per memorie unbuffered DDR a 184-pin di tipo SDRAM PC1600/2100/2700 o fino a 3.5 GB tramite 4 slot per memorie registered DDR a 184-pin di tipo SDRAM PC1600/2100/2700.
Ma che differenza ci sono tra i due tipi di ram?
Nei listini non c' scritto, almeno in modo diretto, il tipo, da cosa si capisce?
Quali sono la migliori in termini di prestazioni?
Uno dei due tipi ha a che fare con il Full Brand?
Grazie!

MarcoLaBestia
19-08-2002, 21.09.29
Sparpa pensaci tu ke nn ci ho capito molto! :D Nn perk scritto male, kiaro ;)

follettomalefico
19-08-2002, 21.41.54
Beh, una prima info potete averla qui:

http://www.corsairdirect.com/registered.html



Registered versus Unbuffered

Most syetms that use SDRAM modules use standard Unbuffered SDRAM DIMMs. However, on some newer systems, the memory modules can be either Unbuffered or Registered SDRAM modules, and you CANNOT mix the two types of memory in the same system.

Registered memory modules are similar to Buffered memory modules. They have extra chips mounted onto the module which control the way the module memory bank is accessed. With unbuffered memory modules, the entire memory is accessed at the same time.

While trying to determine which type of SDRAM module you require can be somewhat confusing, the Corsair Memory Upgrades Direct configurator, will automatically determine which type of memory you require based on the way the system manufacturer configured their memory module design.


E anche:
http://www.ocsystem.com/whatunandbuf.html



This line tells you whether your system takes buffered, unbuffered, or registered modules. Unbuffered modules are the most common. In unbuffered memory, the chipset controller deals directly with the memory. There is nothing between the chipset and the memory as they communicate. Buffered modules contain a buffer to help the chipset cope with the large electrical load required when the system has a lot of memory. Registered modules are unbuffered modules that contain a register that delays all information transferred to the module by one clock cycle. Buffered and registered modules are typically used only in servers and other mission-critical systems where it is extremely important that the data is properly handled.

DDR and SDRAM modules can be registered or unbuffered; EDO and FPM modules can be buffered or unbuffered.


Suff? :)

Ops, ho anche trovato uno schema:
http://www.memorytesters.com/ap_11.gif