Monday, 27 October 2014

Install Ddr Sdram With Two Different Latencies

Install memory modules with differing latencies.

DDR SDRAM latency is a measure of the time delay between the point when a memory module receives a request from the central processing unit (CPU) to the point in which it responds to that request. The lower the latency, the faster the memory operates, increasing the speed of your entire system. Installing memory modules with differing latencies is possible as long as the modules are both compatible with the system motherboard. There is no conflict between the two once installed, however the faster module with the lower latency will operate at the same speeds as the slower module, wiping away any possible system improvements gained from using the faster RAM type.


1. Turn off your computer and then remove the power plug from the rear of the case.

2. Place an antistatic wrist strap around your wrist. Clip the other end of the strap to a metal object to ground yourself, preventing static electrical discharges from your body from damaging the internal computer components.

3. Open the computer case by removing the case cover. Locate the two screws at the rear of the case holding your cover in place. Remove the screws and then pull the case cover back about 1-inch from the front case panel. Lift the cover free to access the case interior.

4. Locate the memory slots on the motherboard with the aid of the computer motherboard or manufacturer's instructions. Each slot should have two small clips on either end that lock RAM modules into place once installed.

5. Pull the small locking clips outwards, away from the RAM slot. Align the notch on the bottom of the first DDR SDRAM module with the notch in the center of the RAM slot. Slip the module into the slot until firmly seated in place. Press the clips on the sides of the slot inwards, until they lie within the slots on the sides of the RAM modules, locking the Ram into place. Repeat the installation process for the second DDR SDRAM module of differing latency.

6. Replace the cover to your case, and then plug the power cable back into the power supply. Turn on the case and wait for the system to boot up. The system POST, the checks the computer makes prior to the start of the operating system, will show the total memory present in your system and include the two installed RAM chips in the memory amount display.

Tags: case cover, differing latencies, into place, lower latency, memory modules