Difference between revisions of "What kind of memory is this?"
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'''D'''ual '''I'''nline '''M'''emory '''M'''odules are newer and longer than the older SIMMs (see below). All DIMMs are the 5.25 inches long, and they can be distinguished by the number and positions of their notches.<br> | '''D'''ual '''I'''nline '''M'''emory '''M'''odules are newer and longer than the older SIMMs (see below). All DIMMs are the 5.25 inches long, and they can be distinguished by the number and positions of their notches.<br> | ||
| − | '''''D'''ual '''I'''nline '''M'''emory '''M'''odules más recientes y más largo que | + | '''''D'''ual '''I'''nline '''M'''emory '''M'''odules son más recientes y más largo que los de más antiguos Simms (véase más adelante). Todos los módulos DIMM miden 5,25 pulgadas de largo, y pueden ser distinguidos por el número y las posiciones de sus muescas.'' |
=== SDRAM === | === SDRAM === | ||
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A stick of SDRAM has two notches in it, one near the center of the stick, and one closer to the side.<br> | A stick of SDRAM has two notches in it, one near the center of the stick, and one closer to the side.<br> | ||
| − | ''Un | + | ''Un módulo de SDRAM tiene dos muescas, una cerca del centro del módulo, y otra cerca a un extremo del módulo.'' |
=== DDR === | === DDR === | ||
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A stick of DDR has a single notch in it near the center of the stick.<br> | A stick of DDR has a single notch in it near the center of the stick.<br> | ||
| − | ''Un | + | ''Un módulo de DDR tiene una muesca en en el centro del módulo.'' |
=== RAMBUS === | === RAMBUS === | ||
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A stick of RAMBUS has two notches in it at the center of the stick.<br> | A stick of RAMBUS has two notches in it at the center of the stick.<br> | ||
| − | ''Un | + | ''Un módulo de RAMBUS tiene dos muescas en en el centro del palo.'' |
==SIMM== | ==SIMM== | ||
Revision as of 15:39, 16 November 2008
Most of the memory we are run into at Free Geek, falls into one of two categories (DIMM and SIMM):
DIMM
Dual Inline Memory Modules are newer and longer than the older SIMMs (see below). All DIMMs are the 5.25 inches long, and they can be distinguished by the number and positions of their notches.
Dual Inline Memory Modules son más recientes y más largo que los de más antiguos Simms (véase más adelante). Todos los módulos DIMM miden 5,25 pulgadas de largo, y pueden ser distinguidos por el número y las posiciones de sus muescas.
SDRAM
A stick of SDRAM has two notches in it, one near the center of the stick, and one closer to the side.
Un módulo de SDRAM tiene dos muescas, una cerca del centro del módulo, y otra cerca a un extremo del módulo.
DDR
A stick of DDR has a single notch in it near the center of the stick.
Un módulo de DDR tiene una muesca en en el centro del módulo.
RAMBUS
A stick of RAMBUS has two notches in it at the center of the stick.
Un módulo de RAMBUS tiene dos muescas en en el centro del palo.
SIMM
Single Inline Memory Modules are older and shorter than the DIMMs. There are two varities, 30-PIN SIMMs and 72-PIN SIMMs. Both are substantially shorter than the DIMMs (above). We normally do not want to keep SIMMs these days.
72 Pin SIMM
72 pin SIMMS are 4.25 inches long. This is about the same length as a cache module, but the holes and notches to install them are different, see points A (side holes), B (center notch) and C (side notch) in the picture.
NOTE: The 72-PIN SIMM is not a DDR (because it's not a DIMM and all DDRs are DIMMs). Many people confuse these types of memory, because both have only one notch. The 72-PIN SIMM is much too short to be a DDR.
30 Pin SIMM
30 pin SIMMs are 3.5 inches long. These are the oldest types of memory we tend to see very often. Note that they do not have a center notch.