Up grade I have a toshiba p25 s676. I want to upgrade the video card and motherboard. I like everthing else about it and would rather not start with a totally new labtop. Can this be done?

Hi,
Does the display show anything before you enter windows? If yes, then press the key to transfer video back to your original screen once you enter windows. It should be the function key "Fn" + F5 - F8. looks for the icon which shows a monitor or says "CRT/LCD".
If it doesn't show anything before you enter windows I'm afraid your screen needs to be replaced. Good luck.

If you log into www.toshiba.com the programme will give you your serial number and model number automatically. Download Tempro and that will keep you in touch with the latest settings and drivers for your laptop.

no, you have to change your video card

my monitor shows that their is no power signal but the cpu start and does not appear on screen

I'm not positive, but I believe your video adapter card "IS" part of the motherboard. This is not something you want to undertake unless you are familiar with the proceedure. Sorry I couldn't be of more assistance.

May be a bad power jack or the powercord/ac adapter may not be putting out enough power.Your powerboard may need to be replaced or even the button itself may not be getting contact to the board itself.

Most notebooks either have their video processor on the motherboard, or have a mini-card that is specific to the particular notebook model. Generally, they are not upgradable (unlike desktop PCs). You MIGHT be able to share more notebook memory with the video system. It's a setting in the BIOS setup, if it's even available.

Have a look into the device manager, right click my computer, select manage, then on the left side of the management window click on device manager, plug in the sd, do you see any ? or ! or yellow marks or unknown devices that a driver would be missing from or malfunctioning?

the best thing to do is to get the help of a qualified technician(better go to a toshiba service centre)
they will help you with this.
try removing the battery after turning off the computer and removing the power supply.reinsert the battery and turn on th notebook. it should work fine.
else contact the technician.

Hardly, the new motherboard costs 300-1500 usd.

and then it has to fit your laptop. No this is very hard, id recommend a new laptop, you can transfer your files and everything from the old pc to the new laptop.

and then you can go ahead and sell the old laptop.