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New memory not recognised when installed into spare slot

\015 Got new memory card equivelant to memory installed, when fitted nothing happens then get message memory not recognised,\015\012new memory:128mb SODIMM 144pin PC100\015\012CSO8889\015\012do i just fit it in and reboot or do i need to do anything else??\015\012memory is standard at 128mb and is very slow\015\012running windows millenium\015

Answers :

"Put it in and reboot"... be sure the aptop is OFF when you add memory! Otherwise, you can damage BOTH memory and laptop! Once memory is installed there is no "trick" to get it recognized. If it is good and meets the BIOS specs, it will be recognized and registered after a cold boot.

1. Be sure the memory is inserted properly (both clips on the sides are flush with the half-moon tabs between memory and metal clips).

2. Sometimes on a memory slot that has been empty a long time (and gets a bit corroded) it is a good idea to insert the memory, remove it again and reinsert 5 or 6 times (only) to clean the contacts.

3. If number 1 and 2 have been done, and you still have this error, then there is a problem with the memory:

It may be the wrong speed (PC100 instead of PC133, etc)

It may be too LARGE for the BIOS to use (all laptops have maximum memory per slot specs that must be observed, because the laptop cannot see memory that is greater than its specified capacity.

In any case, check the manual or the website for your laptop, to get the specifications for memory type AND capacity per slot, and TOTAL memory if you have two slots -or memory soldered on board).
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