How do I reconnect the keyboard connection to my Medion PC MT7? It has become disconnected.

SOURCE: Computer switching off

If you brought the machine to me, the very first thing I'd is open the case and look inside. The most common cause of system shutdown is overheating, either due to fan failure or a dirty machine. Dirt is the enemy of the PC> If there is a failed CPU fan, or the CPU heat sink is totally clogged with dirt, then I would recommend getting a can of dust remover (canned air) at your local big box store and clean out the PC, then try again. Do not remove the CPU heat sink to clean it unless you have replacement thermal paste to reinstall it! You can usually clean it sufficiently wit the canned air.

joecoolvette

• 5660 Answers
• Posted on Jan 08, 2012

SOURCE: medion computer (6 years old, running XP) keeps switching itself off. Why?

Could be one of three things, or a combination

1) Computer is dirty inside. Cooling system is clogged with 'Gunk'.
('Gunk' = Dirt, dust, hair, food crumbs, dead bugs, etc)

A Processor will turn off if it becomes too Hot. (BIOS turns it off)
It's a fail safe feature that is built in. Keeps the Processor from burning up.
(No Processor operating, No computer)

Computer on a table, computer unplugged from power, all cables unplugged to the computer. Computer case open, follow Anti-Static Precautions.

[ Anti-Static Precautions:
Your body carries Static electricity. Static WILL fry out (Short Circuit) the delicate hardware components inside a computer.

Computer on a table, computer unplugged from power, computer case open. TOUCH an unpainted surface, of the metal frame of the open computer case.

This action will relieve your body of Static.
Should you leave your computer in the middle of working on it. be SURE to Touch the metal frame again, upon your return ]

Use a can, or two, of compressed air for computers. Attach the plastic straw provided, and break the plastic lock tab off of the top of the can. (Nozzle)

Spray air as a professional paint sprayer would. When you start, squeeze the trigger in all the way, then let go when you reach the other side. Keep the can level when spraying, if possible.

Start at the top inside corner of the computer. Spray air across to the other side. Then drop down a space, and spray air across again.
Keep going down in rows.

When you reach the bottom of the computer case, tilt the top of the computer case towards you, and spray the bottom of the case out.

Try to clean out the inside of the Power Supply's case, as best as you can. It won't be perfect, but any cleaning will help.
On the inside of the computer case, go up to the metal case of the Power Supply.
There are vented holes in the case. The straw is inserted partway into a hole, then air is sprayed.

Hold onto the straw with one hand, and the can of air with the other hand. If not the straw may pop off inside the case of the Power Supply.
Start at a top ventilation hole. Then go to other top holes beside it.
Now go to the bottom ventilation holes.

Finally go to the back of the computer, and Power Supply. Spray the fan blades off, the center hub of the fan, and the surrounding cage. (Shroud)

Go back to the inside of the computer, and dust off one more time across the bottom of the case.

Also at this time it would be good to clean the gold plated contact pins, on the bottom of the 512MB ram memory module.
The contact pins 'corrode' over time, and this makes a bad contact.

http://en.wikipedia.org/wiki/File:Generic_DDR_Memory_%28Xytram%29.jpg

Handle the ram memory module by the Body.
The Body is the rest of the ram memory module, except for the gold plated contact pins.
The Body is coated with a see-through protective plastic.

Use a pencil eraser to clean the contact pins. If using an eraser on the end of a pencil, and not a solid eraser, refrain from letting the metal band contact the contact pins.

Rub up, and down on each contact pin.
(There are 184 contact pins. 92 on each side. IF, this is a DDR Sdram ram memory module, and IF my sources are correct about what type of ram memory your Medion uses. I DO wish I had the MSN though)

It may not look as though you are doing very much, as the contact pins may not become bright, and shiny.
It's okay. Doesn't take much 'corrosion' to make a bad contact surface.
The cleaning you are performing will help tremendously.

When finished cleaning use air to remove the eraser dust. You can use air form a can of compressed air for computers, or air pressure from your mouth will be sufficient.

2) Bad Power Supply
Weak voltage power rail. Electrolytic Capacitors are breaking down inside the Power Supply.
An Electrolytic Capacitor can operate at a weakened state, for quite a while, until it eventually fails.

Primer:
A) IF all of the LED lights were on at once, they would use less than 1 Watt of power.

B) EACH fan uses 2 to 3 Watts of power.

C) A typical Processor can use from 51 to 125 Watts of power. Just depends on what Processor it is. (Older processors use less)

Power to turn the Processor on, but not enough to keep it on.

3) Motherboard:
Specifically the Electrolytic Capacitors on the motherboard.
Allow me to use a previous solution for information on this,

http://www.fixya.com/support/t11187430-machine_will_not_boot_up_shuts_down

Awaiting your reply as to what your diagnoses finds. Post back in a Comment.

Regards,
joecoolvette