In general, upgrading memory is a simple task—assuming you purchase the proper type of memory for the upgrade. Factors that affect the proper type of memory are:
The following sections discuss each of the factors that affect the purchase of memory for your system.
Speed: When purchasing memory, you need to first take into account the speed of the memory, which is typically measured in nanoseconds (ns). SIMMs usually runs between 60ns and 80ns. Make sure you don’t mix and match these speeds. The speed of the module is usually indicated on the chips themselves (by displaying either a numeric value or a simple minus sign with a number). For example, a memory module running at 70ns would show either a “70” or a “–7” on the chips.
Connectors: Another important issue with regard to memory installation is that you need to purchase the proper metal used for the pins on the memory modules. The metal used is either silver or gold. If the SIMM socket uses silver-plated connectors, the memory module you purchase must use silver-plated pins.
Parity/non-parity: The final issue with regard to memory upgrades is whether the system uses parity or non-parity memory. This information can be determined by checking the documentation that came with the system, or by trying to find the information on the Internet at the vendor’s Web site.
Installing memory: Now that you have purchased either parity or non-parity memory at the correct speed and with the proper metal-plated pins, you are ready to install the memory.
The following sections discuss each of the factors that affect the purchase of memory for your system.
Speed: When purchasing memory, you need to first take into account the speed of the memory, which is typically measured in nanoseconds (ns). SIMMs usually runs between 60ns and 80ns. Make sure you don’t mix and match these speeds. The speed of the module is usually indicated on the chips themselves (by displaying either a numeric value or a simple minus sign with a number). For example, a memory module running at 70ns would show either a “70” or a “–7” on the chips.
Connectors: Another important issue with regard to memory installation is that you need to purchase the proper metal used for the pins on the memory modules. The metal used is either silver or gold. If the SIMM socket uses silver-plated connectors, the memory module you purchase must use silver-plated pins.
Parity/non-parity: The final issue with regard to memory upgrades is whether the system uses parity or non-parity memory. This information can be determined by checking the documentation that came with the system, or by trying to find the information on the Internet at the vendor’s Web site.
Installing memory: Now that you have purchased either parity or non-parity memory at the correct speed and with the proper metal-plated pins, you are ready to install the memory.
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