Ram fastest speed ns5/5/2023 ![]() Information About RIMM Memory (RDRAM and CRIMM) RIMMs (Rambus Inline Memory Module) briefly became the memory of choice on high-end systems in early 2000 ( Figure 1).įigure 1: RIMM (Rambus Inline Memory Module)Developed by Rambus, Inc., this memory architecture (a.k.a. ![]() Check your system documentation to determine the specifications for your system. It is not a good idea to mix PC100 and PC133 SDRAM. SDRAM is generally manufactured as PC100 or PC133 (100MHz and 133MHz, respectively). The speed is measured by frequency in megahertz (MHz). SDRAM was synchronized to the bus speed of the system's FSB (front-side bus), causing a 25% leap in performance. ECC has the added capability of fixing small errors, allowing the system to continue, whereas parity memory halts the system as soon as an error is discovered. ECC memory is similar to parity in that it checks for and traps memory errors. ( Figure 1) DIMMs are 5.375" long and 1.5" high with 8 - 16 of the smaller TSOP (thin, small outline package) chips.ĭIMM later evolved to become SDRAM (Synchronous DRAM), which was a derivative of Synchronous Graphics RAM (SGRAM), a very fast but expensive type of video card memory. DIMMs feature 168 pins and offer 64-bit of bandwidth, eliminating the need for installing SIMM memory in pairs for Pentium systems. Information About DIMM Memory (SDRAM) DIMMs (Dual Inline Memory Module) were the next major improvement in memory technology after SIMM. Check your system documentation to determine RAM specifications for your system. The speed for SIMMs is measured in nanoseconds (abbreviated 'ns' or 'nsec'), usually 15ns or less. EDO further improved the performance of memory by allowing memory to be written to and read from at the same time.Fast page increased memory performance by optimizing the paging function of memory.Parity memory offers error-checking of the stored data to make sure it does not change or become corrupted before it is used.Non-parity is just raw memory for temporary storage and retrieval.Different types of SIMMs include: non-parity, parity, fast page and EDO. 72-pin SIMMs are 4.25" long and 1" high with 8 - 16 SOJ chips.īefore SIMMs, most memory was installed directly on the motherboard and there was not much room for upgrade. 75" high, usually with eight bulky, SOJ (Small Outline J-lead) chips. SIMMs began in a small 30-pin/8-bit format, which were later updated to a 72-pin/32-bit format. SIMMS are the first memory sticks that were mass produced ( Figure 1). Information About SIMMS Memory (RAM) SIMMs (Single Inline Memory Modules) are an older packaging style for RAM. as a high-performance successor to SDRAM, RDRAM is available only in RIMM packages. Parity RAM and Non-Parity RAM are usually not compatible with each other.ĭeveloped by Rambus, Inc.Generally used in applications that require intensive data processing, such as large spreadsheets and databases, Parity RAM contains extra circuitry that can help minimize RAM-specific errors. This is generally less expensive than Parity RAM. ![]()
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