PC100 SDRAM - Synchronous DRAM) - A DRAM technology that uses a clock to synchronize
signal input and output on a memory chip. The clock is coordinated with the CPU
clock so the timing of the memory chips and the timing of the CPU are in synch.
Synchronous DRAM saves time in executing commands and transmitting data, thereby
increasing the overall performance of the computer. SDRAM allows the CPU to
access memory approximately 25 percent faster than EDO memory.
The first attempt to improving RAM speed was the PC100
standard. With chip sets like BX the system bus speed has come up to 100 MHz. Hence
Intel has made a new standard called PC100. Only
8ns SDRAM modules that are constructed according to these standards are
guaranteed to work at 100 MHz.
Highlights:
Make sure to use Memory Configurator
to find PC100 memory upgrade that is
guaranteed compatible with your particular computer system.
Memory Knowledgebase:
Memory types like SDRAM, DDR, and Rambus RDRAM are found in most of today's
computer memory applications:
SDRAM -
Synchronous Dynamic Random Access Memory;
RDRAM
- Rambus
Dynamic Random Access Memory;
DRAM - Dynamic Random Access Memory;
RAM - Random Access Memory;
DDR - Double
Data Rate is a type of SDRAM in which data is sent on both the rising
and falling edges of clock cycles in a data burst.
DIMM - Dual in-line memory module. This physical property
describes a module with signal and power pins on both sides of the board.
DIMMs can be any number of pins including 144pin SODIMM
SDRAM, 168pin SDRAM
memory, and 184pin DDR
SDRAM.
Unbuffered - This is the most common configuration for memory. These
modules do not use any supporting TTL logic.
ECC - Error Correcting Code. Logic designed to detect and
correct memory errors. Memory modules designed with 72 bits of memory support
the motherboard's ECC function.
Registered - Registers delay memory information for one clock
cycle to ensure all communication from the chipset is collected by the clock
edge, providing a controlled delay on heavily loaded memories. This allows you
to installed four or more modules or larger memory sizes in your application.
Registered and non-registered memory can not be mixed.
Highlights:
After you've run a compatibility check
(Memory Configurator)and selected PC100 SDRAM memory with
specific chip configuration - you can buy
any brand of memory
from any suppler that matches your requirements.
Note: When you
buy from
the featured retailer that advertise on our site we also receive a
small percentage from every order.
When you access their site from our page
and buy the product - you pay the same fixed low price and we would receive
the small support that helps us to maintain the helpful information about
PC100 SDRAM memory upgrades. - BUY.
HOW TO INSTALL MEMORY
Before
you start, make sure you have the following:
Your computer manual. To install memory, you must open the computer box
(chassis) and locate the memory sockets. You may need to unplug cables and
peripherals, and re-install them afterward. The manual will most likely provide
instructions specific to your computer.
A small screwdriver. Most computer chassis assemble with screws. The
screwdriver also comes in handy if the notches on memory sockets are too tiny
for your fingers.
IMPORTANT THINGS TO KEEP IN MIND
ESD DAMAGE
Electro-Static Discharge (ESD) is a frequent
causes of damage to the memory module. ESD is the result of handling the module
without first properly grounding yourself and thereby dissipating static
electricity from your body or clothing. If you have a grounded wrist strap, wear
it. If you don't, before touching electronic components - especially your new
memory module - make sure you first touch an unpainted, grounded metal object.
Most convenient is the metal frame inside the computer. In addition, always
handle the module by the edges. If ESD damages memory, problems may not show up
immediately and may be difficult to diagnose.
SWITCHING OFF
THE POWER
Before opening the chassis, always power-off your computer
and all attached peripherals. Leaving power on can cause permanent electrical
damage to your computer and its components.
INSTALLING THE MEMORY
Locate the memory expansion sockets on the computer's motherboard. If all
the sockets are full, you will need to remove smaller capacity modules to allow
room for higher capacity modules.
For some installations, DIMM memory can be installed in any available
expansion slot. Other installations may require the memory to be installed in a
particular sequence based on the module's capacity. Check your owner's manual to
determine the correct installation sequence for your configuration.
Insert the module into an available expansion socket as shown in the
illustration. Note how the module is keyed to the socket. This ensures the
module can be plugged into the socket one way only. Firmly press the module into
position, making certain the module is completely seated in the socket. Repeat
this procedure for any additional modules you are installing.
Most 168-pin DIMM modules have ejector tabs similar to those shown in the
illustration. The ejector tabs are used only when you need to remove a module.
By pressing down on the ejector tabs, the module will pop up from the socket and
it can be removed.
Note: When you
buy from
the featured retailer that advertise on our site we also receive a small
percentage from every order.
When you access their site from our page
and buy the product - you pay the same fixed low price and we would receive
the small support that helps us to maintain the helpful information about
PC100 SDRAM memory upgrades. - BUY.
