|You MUST DISCONNECT the AC power to the computer, e.g. by either unplugging the AC cord, or by switching off the source of AC power to the cord, whenever you are going to be plugging in or unplugging anything inside the computer case, otherwise you can DAMAGE something. |
You can easily DAMAGE the circuits of a graphics card, and/or the circuits of the mboard slot you are plugging it into / unplugging it from, if you do / did NOT do that at ALL times.
Most modern mboards have an led on the surface of the mboard that lights up when the power supply is connected to the mboard and the AC power to the power supply is live. WAIT until that led has gone out BEFORE you unplug or plug in anything inside the case. The power supply has capacitors that may hold a charge and supply DC power to the mboard and cause that led to stay lit for a short time, or for a longer time, after the AC power to the power supply has been removed.
If the graphics card has one or two power sockets, you must plug power connectors from the power supply into that (those) sockets that fill the socket(s) (either 6 pin or 8 pin).
Some power supplies have a dual purpose 6+2 pin PCI-E connector that looks like a 8 pin connector when the two pieces are connected to each other - the 2 pin part of it can be detached from, or connected to, the 6 pin part of it.
If the graphics card has two power sockets, if your power supply does NOT have two PCI-E power connectors for the sockets on it's wiring, DO NOT use a one PCI-E to two PCI-E Y wiring adapter to connect to the two power sockets on the card - that cannot supply enough current (amperage) to the card. Use a molex to PCI-E wiring adapter for one of the power sockets on the card - that CAN supply enough current. (Two larger molex power connectors connected to two spare molex connectors used for IDE drives from the power supply to one 6 pin PCI-E connector that plugs into the card's socket. )
Regarding the laptop keyboard, try a corded USB keyboard with the laptop.
- If the same keys you have problems with on the laptop's keyboard DO produce the same problems, something in your Regional and Language Options is not set right in Control Panel .
(Control Panel - display as Small icons or Large icons - Regional and Language Options)
- If the same keys you have problems with on the laptop's keyboard DO NOT produce the same problems with the USB keyboard, the only thing that can cause your problem is the laptop's keyboard is malfunctioning - it probably needs to be replaced.
Laptop keyboards are relatively fragile and it's common for some keys to NOT work properly, after the keyboard has been used a lot, or if liquid has been spilled on it at ANY time, or if the laptop has been dropped at ANY time.
(If you HAVE spilled liquid on it, you MAY be able to get the keyboard to work properly again if you REMOVE it and follow a procedure to CLEAN it properly, but that may NOT help.)
If your laptop model is not ancient, there are probably lots of new clone keyboards on the web that you can buy one of for a reasonable price.
(If it IS ancient, you may be able to find only a used keyboard for it on the web.)
However, most laptop models have many possible keyboards (different keyboard layouts relative to where you bought it and what region / language the keyboard is for) - you must get one that is the same as the one it presently has.
The part number for the keyboard MAY be on a label stuck to the back of the keyboard. To check for that you need to follow the instructions for removing the keyboard, however, do NOT unplug the keyboard's cable unless you absolutely have to - it often has a ribbon cable that is finicky to remove and plug in again
Consult the service / maintenance manual for the model series. Some brand name web sites have that available in the downloads for your specific model - e.g. HP, Compaq, Dell. For other brand names, they don't have that - you must search the web to see if you can find that for the model series - e.g. Acer, Toshiba, emachines, Gateway.
The part number for your keyboard MAY be in the maintenance manual
If you can't come up with a part number, search on the web using the specific model "number" of your laptop, and in the ads, look for mentions of the region / language it's for, and / or if there are specific pictures of the exact keyboard, go by the one that looks exactly the same as yours.
In the meantime,
- you could use a corded USB keyboard or a wireless keyboard for most things
- or - there is a virtual keyboard built into Windows you could use for most things.
E.g. Click on your Windows 7 icon ( it's equivalent to the Start button in XP or below) bottom left of your main desktop screen, and type: osk in the Start Search box (press Enter).
osk = osk.exe = On Screen Keyboard.
Clicking on the keys on the On Screen Keyboard does things wherever you have the cursor blinking in something.
(If your Regional and Language Options are not set right, the On Screen Keyboard may have the same problems your built in keyboard, or your corded USB or wireless keyboard, has with some keys.)