|"You have 32Mb built in memory and can add a PC100 128Mb SODIMM to give you a total of 160Mb." |
You have 32mb built into the mboard that is not removable, and a 32mb module in your one ram slot. You remove the 32mb module in the ram slot and install a 128mb one.
You must unplug the AC adapter and remove the main battery when you are removing or installing ram.
You must make sure any module you buy will work, by using your model (Gateway Solo 2150) to search for ram that is listed for it (is compatible with your model) on a ram manufacturer's or ram distributor's web site.
Kingston no longer makes any ram modules for your model, but Crucial does:
You may be able to find used ram for less on the web, by searching with something as Solo 2150 ram upgrade.
"Processor Options 400 / 433 / 466 MegaHertz (MHz)
Bus Speed 66 MHz FSB
RAM Type PC100 - 100 MHz SDRAM"
So the ram runs at 100mhz but the fsb speed is only 66mhz.
This computer must be really pokey in 2000 with 64mb.
XP only begins to run as it designed to when you have 256mb or more ram. I DO NOT recommend you upgrade to XP - your computer will be pokier than in 2000. 2000 requires less ram, but still, 64mb is inadequate, and 2000 may not run as it designed to with 160mb either.
This model is probably at least 9 years old.
If this computer has not been properly maintained, which is very common, it may not be a good idea to spend any money on it at all.
You may need to get a replacement main battery and/or cmos battery as well.
Main batteries typically work as they should for about a year, then they begin to rapidly deteriorate. By the second year they can't be charged to anywhere near their rated capacity, and that gets worse as time goes by. They often develop internal shorts when the're old and then can't achieve their rated voltage - in that case they often get HOT a while after the AC adapter is plugged in, rather than just warm - they can get hot enough that causes a fire.
You may need to replace the main battery if it hasn't been replaced or hasn't been replaced in a long time.
On the other hand...
Newer laptops will not run on the AC adapter alone, however, your model is so old it might. Try removing the main battery and connecting only the AC adapter to see if it will boot.
If it won't boot when the main battery is not installed, it won't boot if the main battery is installed but can no longer retain at least a minimal charge either.
The cmos battery that retains the bios's settings - the current time, date and any custom settings you make in the bios - is typically designed to last about 5 years.
If you get a "Cmos Checksum Error" or similar message while booting, your cmos battery may need to be replaced.
Some cmos batteries in laptops are rechargable - in that case, if the computer has been sitting unused a long time that cmos battery may be discharged too much, and you will get the "Cmos Checksum Error" or similar message while booting. Plugging in the AC adapter for a while will charge the rechargable cmos battey as well as the main battery, and if the cmos battery is then charged enough, it will be able to retain the cmos settings. If you still get the "Cmos Checksum Error" or similar message while booting, the recharagble battery is no longer good enough.
When you get the "Cmos Checksum Error" or similar message while booting, go into the biosand check the time and date. If they have been set to defaults, set them to the current date and time, save settings, reboot. You then won't get the "Cmos Checksum Error" or similar message while you're still running the computer, or when you restart it, but if the cmos batterry is too weak or dead, you will get the "Cmos Checksum Error" or similar message while booting after you have shut off the computer and then boot it, and then have to set at least the date and time again in the bios.
So, you can make do even if the cmos battery is too weak or dead, but it's a pain to have to enter the bios setup every time you boot from off, although you could leave it running as much as you can - use Standby or Hibernate in that case.
Laptop hard drives have no more than a 3 year warranty period, and they tend to not last as long as desktop hard drives do.