My ibm s50 cannot start at all. when the power cable is connected there is power on the board but after pressing the switch on button the machine does not start.

Check the battery and all the wires for connection and corrosion

That IBM Netvista should have a model number on the back.

This tells me if the computer is so old it uses an AT power supply, or an ATX power supply; as modern computers do.

http://www.playtool.com/pages/psuconnectors/connectors.html#oldpc

The old AT form factor of Power Supply, used the above type of main power cables.

The Power On switch was usually connected to the Power Supply.
A separate cable went from the front of the computer, connected to a Power On button, to the Power On switch on the Power Supply.

Or a separate Power On switch was mounted to the Power Supply, and a metal rod pushed against it.
The metal rod pushed by a plastic Power On button, in the front of the computer.

The ATX form factor design uses a Soft Power On circuit.

When a Power Supply is plugged into power, there is a constant 5 Volts present.
The 5 Volt Standby Power.

The ATX power on switch is a Momentary Contact Switch.
Pressing it closes the Soft Power On circuit -> Temporarily.

The 5 Volt Standby power is re-routed, and 'excites' the Power Supply, which turns it on.

THIS type of ATX power on switch is common.
It is inside the plastic Power On button assembly,

http://www.directron.com/atxswitch.html

Regards,
joecoolvette

http://en.wikipedia.org/wiki/Computer_power_supply

http://en.wikipedia.org/wiki/Switched-mode_power_supply

http://www.hardwaresecrets.com/article/181

To reset IBM Infoprint 1312 to factory settings, do following:
1. disconnect USB and network cables
2. switch power button to OFF
3. open toner door
4. press and hold both buttons (continue+cancel)
5. while holding buttons, switch power button to ON
6. keep holding buttons until printer initialization is finished (LED error is on)
7. close toner door
8. switch power button to OFF

Connecting printer in network:
Now you can connect printer with network cable, make sure DHCP works in your network. Switch power button to ON. Printer initialization should also obtain IP address from DHCP.
You can look in your router DHCP clients list or you can try to use software delivered with printer to find printer in network :)

When you go to IP of printer via browser, it will allow you to change some settings. Username to login is usually MarkNet, password is yours :)

This is all my personal exprience, it definitely works for this particular network printer :)

i think your server got low contact heat sink so reinsert your heat sink with thermal paste..but u must check your power switch if functioning perfectly first.

most in that case have problems in the bios. auto running when power cable is attached.

I really don't think your problem comes from the update... I'd say it's a pure technical problem.
First thing first please check all your cables to be connected in a proper way: to the wall plug-in and to your computer as well.
Press the POWER button for about five seconds; your notebook should start. If not, disconnect the cable from the wall plug-in and inspect your machine using your hand. Try to detect if there's an overheated/warmer than usual area.
If everything is normal let the notebook unplugged and press continuously the POWER button for 10 seconds; that procedure will help your circuits to be "drained" of electricity. Wait another 10 seconds and connect the cable and try to start your IBM notebook.
If this procedure fails too I'd suggest to check your Power Supply Unit. It might be damaged.

This machine is designed for XP and will not run properly on Win7
There are no drivers for the graphics and the motherboard may not accept another VGA board, due to its age.

so, you eman you power it up , get the OS in working mode and then the START button freezes up ? i dont quite understand.
if you are interetsed, send me your contact information (phone #) and i willc all you

or i strongly suggest you take it back to the seller and get them to figure out why this is occuring

good luck

remove the battery and adapter. press power button for 30 sec. then connect the adapter. press power button. if this didnt work. you need to ask for an help of a local tech to check for the video card and cable.

It could be a motherboard problem, but, this may sound silly, but it could also be a stuck up power or reset button. I had this experience with a desktop pc where the power button got stuck in its "press" position. Try removing the connection of these switches from the mboard and use a metal screw driver to act as the switch by momentarily shorting the power switch connection on the board.

--you can also check the cmos battery of the pc. These newer boards would refuse to even power up if the cmos battery are drained.