Adding memory to my Gateway M675 - problem with new card
My manual says that my model will use either a pc2700 or pc3200 module. I purchased 2 pc3200 1g modules and received them in the mail today. They don't fit!!! The notch is off on both just enough so the they won't slide in. Any ideas?? Should I have purchased the pc2700 instead? I called their support and they couldn't tell me anything:(.
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If you get several beeps then there is a video problem. The video card uses shared RAM (part of the main RAM) and if the RAM is faulty the laptop won't boot up. You might have incompatible RAM, try to use the same make and speed RAM as the original. One of the RAM modules may be faulty. Try installing one 256Mb RAM module then boot up the Toshiba, if it works the try the other RAM module.
DDR SDRAM memory has 184 pins, where as SDRAM has 168 pins. DDR SDRAM Memory is a new type of SDRAM that is able to double the read / write speed of the previous generation of SDRAM memory. There are currently, PC2100 (DDR266), PC2700 (DDR333), PC3200 (DDR400), PC4200 (DDR533) These DIMMs are 184 Pin in size and are not interchangeable with older SDRAM modules.
The original 2 sticks of 256 Mb of RAM gives you a total of 512
Mb of RAM. Two 512 Mb of RAM gives you a total of 1 Gb of RAM.
With two sticks of 512 Mb of RAM are you sure you got a total of 192 Mb of RAM, this is a lot less than the original RAM total of 512 Mb?
Should this be 1920 Mb of RAM?
If this 192 Mb is correct then the RAM modules are either not compatible with the laptop or if the RAM modules are not from the same manufacturer then they may not work together.
Most laptops have video cards that use part of the main RAM for video RAM, that is why the available RAM is less than the installed RAM modules. The amount of RAM the video card grabs depends upon the type of video card and in some cases the amount of video RAM can controlled in the BIOS setting.
How much memory did it have before you removed the 256Mb RAM?
If it had 756Mb RAM then the memory in the laptop has 512 Mb plus 256 Mb RAM modules, the 256Mb in the slot you can see and possibly 512Mb in a slot under the keyboard or soldered on the motherboard.
Therefore by removing the 256Mb and replacing with 1Gb memory module will give you a total of 1.5Gb
its most probably a RAM gone bad. try taking out one of the ram modules and check to see which RAM slot or RAM module is acting up (mine was the ram slot 1 which suddenly stopped working). Or if your using pc3200 try replacing it with pc2700
also since u have opened up anyway try to do some cleaning
1. open up the fans and clean it- lots of dust and gunk in there 2. take off the cpu heatsink, clean it and put on a fresh coating of thermal paste
yeppers..those are simply receivers, and sometimes, after a period of time, and vibration, and shock, they just lose some of their ability to tune into a signal. I've seen it in net cafes and inside wireless nodes too.