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Home >> Resources | Support >> Installation Guides >> 

How to Install New Memory Modules?

How to Install New Memory Modules?


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The following article is based on years of experience. It is provided as a free service to our customers and visitors. However, Directron.com is not responsible for any damage as a result of following any of this advice.

Copying the contents for commercial purposes is strictly prohibited without Directron.com's written consent. However, you are welcome to distribute these computer support tips free to your friends and associates as long as it's not for commercial purposes and you acknowledge the source. You are permitted and encouraged to create links to this page from your own web site.


Warning: Handle all memory modules with care. Try to avoid touching the metal contacts. Moisture left on the metal contacts may cause corrosion and thus bad connection with time.

The most important thing to research before purchasing new memory modules is, what will work with the current CPU, Memory and motherboard you have. Considerations: Type, clock-speed, and size. See "How to Choose Memory" for more details.
  1. After you have purchased the proper memory for your computer, shut down the computer and carefully remove the computer case.

  2. Locate the sockets for the memory modules. They should be labeled as Bank 0, Bank 1, Bank 2?Microprocessors access the memory modules in this order.

  3. Determine which sockets to use by the following guidelines:

    For DIMM memory modules (168-pin):
    • If you have one DIMM, install it in Bank 0. If only one DIMM is installed in Bank 1, the system will still boot, however STR will not work
    • If you have two identical DIMMS (same size, same number of sides, both single-sided or both double-sided), install them in either Bank 0 or Bank 1.
    • If you have two DIMMs of different sizes (e.g., a 64MB and 128MB DIMM), install the larger DIMM in Bank 0, and the smaller DIMM in Bank 1.
    • If you have two DIMMs of the same size and one is single-sided and one is double-sided, install the single-sided DIMM in Bank 0 and the double-sided DIMM in Bank 1.

    For SIMM memory modules (72-pin):
    • Memory must be installed in pairs (two and four pieces of the same size).
    • Fill Bank 0 first.
    • Use larger sized modules first.
    • Use identical (chipset, sides) modules as pairs whenever possible.

    Consult your motherboard manual if necessary.

  4. If necessary, remove the old memory by pushing the locking mechanism (taps) down on the sides. Install the new memory in pre-determined memory bank(s). There is only one direction the memory modules can go into the socket. Check the two groves on the modules to fit the sockets. Make sure the lock-mechanism on the sides of the bank(s) is tightly locked to ensure proper contact between the memory modules and the motherboard.

  5. After memory is properly seated in the proper bank, carefully put the case cover back onto the case and secure the cover with the proper case screws.

  6. Reconnect all required cables to the computer and power on the computer.

  7. Enter BIOS and save and Exit. This will double check the motherboard to ensure that it does see the new memory. During the rebooting, watch the memory count to make sure it sees the proper amount of memory.

  8. Let the computer boot into the operating system. Now your memory installation is complete.
Copyright (c)1997-2001 Directron.com/HCCI. All rights reserved.


If you find this article useful, please create a link to it from your website or tell a friend about it. If you have any comments or suggestions about this article, please email information@directron.us

Related Items: | How to Choose Memory? | Glossary | FAQ |

| Memory | Standard Memory | Proprietary | Servers | Notebook | Printer |
| PC133MHZ | How to Choose | Installation Guide |




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