MEMORY UPGRADE Computer had two 256 mb ddr pc2100 sticks for a total of 512mb of ram.Installed two 512 mb ddr pc2100 sticks computer starts up but monitor does not turn from amber to green light.Can install one 256mb and one 512mb everything works fine and it shows 768 mb of ram. All I want is to increase it to 1gb of ram if it is possible.

Your computer will accept a maximum of 1 GB of memory. When you turn the computer on, after installing the full 1GB, do you hear any additional beeps? One beep means that everything checks out good. More than one beep means there was a hardware related issue. If you hear more than one beep, tell me how many you hear, and if they are long or short beeps.

I will also need to know the bios manufacturer and version number. You can find this information by entering setup, it will be listed at the top of the first setup screen. Press either F2, F10, or DEL keys during boot. It should say at the bottom of the screen which key to press.



However, if you hear only one beep, revert back to a memory configuration that allows the monitor to work, then go into the display settings window, click on settings, then advanced, monitor tab, and change the refresh rate, first to a lower refresh rate then to a higher refresh rate. You will need to reinstall 1 GB of memory each time you change the refresh rate. continue adjusting the refresh rate until you've either exhausted all possibilities or your monitor works with 1 GB installed.



Let me know what happens. Your computer will accept a maximum of 1 GB of memory. When you turn the computer on, after installing the full 1GB, do you hear any additional beeps? One beep means that everything checks out good. More than one beep means there was a hardware related issue. If you hear more than one beep, tell me how many you hear, and if they are long or short beeps.
I will also need to know the bios manufacturer and version number. You can find this information by entering setup, it will be listed at the top of the first setup screen. Press either F2, F10, or DEL keys during boot. It should say at the bottom of the screen which key to press.

However, if you hear only one beep, revert back to a memory configuration that allows the monitor to work, then go into the display settings window, click on settings, then advanced, monitor tab, and change the refresh rate, first to a lower refresh rate then to a higher refresh rate. You will need to reinstall 1 GB of memory each time you change the refresh rate. continue adjusting the refresh rate until you've either exhausted all possibilities or your monitor works with 1 GB installed.

Let me know what happens.

What is the make and model of your computer?



I will need this to find out the maximum memory capacity of your computer.



Also, when you installed both 512 MB memory modules were they the same brand and part number for each stick? What is the make and model of your computer?

I will need this to find out the maximum memory capacity of your computer.

Also, when you installed both 512 MB memory modules were they the same brand and part number for each stick?