Motherboard it swiching direct whan i plug in the cable

A few things to try. Plug the cable into a different port on the router to rule out a bad port on router. Try a different ethernet cable (they do go bad). If this is an older router it may not be able to do logic swap on the pins and you would need to use a cross-over cable and not a straight through. Also check in device manager and make sure the computer is not allowed to disable the lan adapter in power saving mode. Also if your really want you can test your ethernet port by buying or making your own loopback plug. Look up ethernet stander T568A. You basically would buy a empty ethernet jack and run a short wire from pin 1 to pin 3 and a wire from pin 2 to pin 6. This will simulate sending data to another device (the other device will simply be the receiving pins on your own ethernet jack.

the bus speed of both are not the same i.e. FSB(IN MHZ)

Hi, not sure what you meen? does the computer swich on and boot up, but only when you plug in your keyboard? Any way go back inside case with your instruction for your motherboard and double check all your cables, I have built hundreds of PCs and its always the smallst think that catches you out. Come back yo me with full details if you can.

Probably it is not charged. Or the battery is bad. So try charging it and if it doesn't work try using another battery.

We need to know what motherboard you have.
Each one is different, but if you look at the board with the back of the case to your left, the place to plug them in will be on the lower right hand side of the board. Many boards have the pin IDs printed on the board. Look there first.
I'm thinking you have a new motherboard. If you do, it came with instructions. If you got it from someone else, you can probably find instructions on the web--just google the motherboard manufacturer's name along with the number of the motherboard.
Note that when plugging in those plugs, the negative is always to the right. This will be the white wire on all plugs but the speaker and there it will be the black wire.
If this isn't really clear, just let me know.

hi guys...can you try to remove the battery then plug the AC/Charger then see what happen..only charger no battery pack in Laptop...
thanks

try to install the drivers from manual from controlpannal, unitenchanter, and loke up the yellow highlighted area at the top of it.. and run install ore update.. worked for me when i did it....



pls Rate whan u think of this help solution

3 beeps = memory
long beeps = processor

long and short mixed = main board,,,

yours sound like memory, try the memory in another pc and see if it works
if it does its your processor

cheers
]

It is possible that while you had it apart you lossened one of the IDE ribbon cables from the motherboard or harddrive.Take it back aprt and make sure all the cables are tightly seated.Rate me FIXYA! if this works!

ok... first check that all power cables from your supply are firmly in place and that the little red or green switch on the back of the computer that changes the Voltage setting is correct unless you have a UPS. secondly make sure no loose debry, cable, or cpu box it touching the motherboard and it is still secure in its mountings. then check that the power, reset and all LED plugs are correctly connected to your MB for connections look at your user book for details. now how far does the computer go in the POST ? if its possible i would also reset the BIOS by either removing the battery from the motherboard and starting it up then replacing it and downloading system BIOS chipset boot disk from: http://driverscollection.com/?V=Foxconn&S=4 good luck.