Adding RAM I have a 2GB chip to install in my toshiba satellite a105-s4054, but after i install it the computer starts up with only a black screen. Is there a specific order of steps or process to installing additional ram on this laptop?

Check the Bus Speed of that 2GB RAM chip (333,3356 etc) it must match the other RAM Chip otherwise remove it and put 2 chips of 1 GB each.

Pls Check this link, in reference to your memory upgrade...it seems that your laptop could only accomodate max 1Gb of RAM

http://support.gateway.com/s/Mobile/Q106/Magic/5948sp2.shtml

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-A105/remove-motherboard-1.htm

Is the battery charged? Might be a defective charger.

If you've replaced the LCD Panel already, then chances are good, the failing part may be the FLR inverter. It's a thin little chip about 3 or 4 inches in length that bridges the connection between the LCD and the motherboard. It's location varies from computer to computer though, so you may have to check with manufacturer documentation. They're not too terribly expensive to replace though, much cheaper than the LCD panel, anyways.

Please install this one as this is the last official BIOS /and seems old ebough to be the one you had originally/:
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=1372980&rpn=PSAA8U&modelFilter=A105-S4054&selCategory=3&selFamily=1073768663&selModel=1372980|PSAA8U

This is BIOS v.6. If this is the BIOS tat you installed and gives the screen error please tell me and I'll try to find an older version.

try the computer with an external monitor, if it works correctly then it's the monitor that has broke and you need it replaced.
otherwise, if it does the same things on the external monitor...
I would check in order:
1)RAM memory
2)Motherboard
if the problem is only after windows boot, try changing the video driver, the problem might be caused by overheating video Chip, but that should freeze the system too...try also to remove the dust from all the heatsinks with canned air...

hai ,frist u go to
start--my computer(right click it)---manage---disk management---

see your new hard disk & right click and shirnk volume

Try pressing the following 2 keys simultaneously- Fn & F5. Do this only once. If this doesn't fix the problem, be sure to hit both of them simultaneously 1 more time to set the machine back in it's original state. What you are doing is switching between the internal monitor and an external monitor, should you ever have a reason to attach one.
R-