ZR50MC
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What is Buffered Memory? Buffered memory uses a Buffer chip to boost the clock signal sent across the memory module so that the clock signal is seen as a clean, sharp signal across the entire module. It eliminates chances of memory errors in data sent or retrieved from memory. It is commonly used in larger capacity Fast Page Mode or EDO modules. Buffered modules have a different keyway in the contact edge and can only be used when the board supports Buffered modules. Unlike Registered modules, it is not interchangeable with Unbuffered modules. Can I mix different speeds? PC600, PC700, and PC800 are three different speeds of memory once available for RDRAM (Rambus dynamic random access memory) modules. Of the three, PC800 modules are the fastest, and PC600 modules are the slowest. (PC600 and PC700 are no longer being produced by any manufacturer)
The last step upon leaving the case should always be to ensure that every cable and power plug is fully seated. If this also does not resolve the problem, try just the new module alone in the system to determine if it is compatible with your system. If the system boots with just the new module, try shutting down and adding the other modules one by one to determine if there may be a chipset incompatibility. What is the difference between ECC and non-ECC (non-parity) memory? If you are unsure of which type you have, just count the number of small black chips on one of your existing memory modules. If the number of chips divides by three evenly, then you need ECC. If the number of chips is does NOT divide evenly by three, you have non-ECC or non-parity memory. If you plan to use your system as a server or a similar mission critical type machine, you may want to take advantage of ECC. If you plan to use your system for regular home, office, or gaming applications, you are better off with non-ECC. Current technology DRAM is very stable and memory errors are rare, so unless you have a need for ECC, you are better served with non-parity SDRAM.
As noted in the introduction, there''s a virtual alphabet soup of memory types: SDRAM, EDO, FPM, SIMM, and DIMM. It certainly can create a great deal of confusion. RAM itself stands for "random access memory," meaning the CPU can access any memory address without reading all addresses before it. (ROM—read only memory—is random access, too, but you can''t write to it). It gets worse, because memory comes in different speeds, and some types don''t work in some systems. Here''s the rundown on the three memory types used in today''s systems.... SDRAM. Synchronous DRAM SDRAM''s speed is typically measured in MHz (for example, 100MHz), although you do see references to 10ns SDRAM ("ns" stands for nanosecond or one billionth of a second). SDRAM for PCs comes in DIMMs. These refer to SDRAM DIMMs rated at different memory bus speeds. For any CPU running at a 100MHz bus speed you should get SDRAM. Some future motherboards will support SDRAM. Although there''s a price premium, SDRAM will run in a PC100 system.
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ZR50MC
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