Cleaning the memory and battery slots did not help. Still no power. Paul

There's some hints at page 69 of the manual. See if:

1. the battery cover/memory slot is open
2. batteries are loade in wrong position
3. batteries aren't alkaline or NiMH (common batteries won't work)
4. connections between batteries and camera is poor (try cleaning it with a dry cloth)

http://files.canon-europe.com/files/soft29207/Manual/PSA450_460_ADVCUG_EN.pdf

Possible that PC is hanging up as there is fault on the OS (operating system) or a virus in the OS. Also it is possible that the backup battery (CMOS) has low voltage or the memory card is a suspect. In this case you need to check the voltage and also try and swap a memory card. Sometimes the memory card connections can be faulty either on the card or on the slot. Cleaning the slot and card must be done before you try a replacement. If the PC boots and fails then the hard disc can have bad sectors or is corrupt. However if there is no result the motherboard also can be suspected. In this case you might need the help of proper tools and equipment support to do a chip level service.

Confirm the power-on lamp and the monitor are off and open the battery-chamber/ memory card slot cover. Be sure to turn off the camera before opening the battery-chamber/memory card slot cover.
Removing Memory Cards 1 Before removing memory cards, turn the camera off and confirm that the power-on lamp and monitor are off. 2 Open the battery-chamber/memory card slot cover and press the card in to partially eject the card. 3 The card can then be removed by hand. Do not attempt to remove the card at an angle.
Insert the memory card.
4 Slide the memory card in correctly until it clicks into place. 5 Close the battery-chamber/memory card slot cover.

Possible that PC is hanging up as there is fault on the OS ( operating system) or a virus in the OS. Also it is possible that the back up battery ( CMOS) has low voltage or the memory card is a suspect. In this case you need to check the voltage and also try and swap a memory card. Sometimes the memory card connections can be faulty either on the card or on the slot. Cleaning the slot and card must be done before you try a replacement. If the Pc boots and fails then the hard disc can have bad sectors or is corrupt. If the processor fan is not working but all funcitons work then check power to the fan , if faulty replace. The power supply to the fan must be checked or the SMPS unit can be faulty.

However if there is no result the motherboard also can be suspected. In this case you might need the help of proper tools and equipment support to do a chip level service.

Thank You for using Fixya

Check the voltage on the battery and also on the adaptor and if faulty it must be replaced .It is also possible that PC is hanging up as there is fault on the OS ( operating system) or a virus in the OS. Also it is possible that the back up battery ( CMOS) has low voltage or the memory card is a suspect. In this case you need to check the voltage and also try and swap a memory card. Sometimes the memory card connections can be faulty either on the card or on the slot. Cleaning the slot and card must be done before you try a replacement. If the Pc boots and fails then the hard disc can have bad sectors or is corrupt. However if there is no result the motherboard also can be suspected. In this case you might need the help of proper tools and equipment support to do a chip level service.

Thank You for using Fixya

If the power LED lights up it indicates that the laptop is getting power from the AC adapter. Most likely there is nothing wrong with the adapter but just in case test it with a voltmeter to make sure the output voltage is correct.
Also try this. Unplug the AC adapter, remove the battery and wait for 1-2 minutes. After that plug the AC adapter ans try starting the laptop again. Sometimes this trick helps.
It also could be a memory related problem. Try reseating the memory module, just remove it from the slot on the motherboard and install it back. Try installing the memory module into the other slot (if it's available). If you have two memory modules installed, try removing them one by one and start the laptop just with one memory module installed.
If the laptop starts fine with one memory module in both slots, but will not start with the second memory module in both slots, the second memory module is faulty. Replace the module.
If the laptop starts fine with both memory modules when they are installed in the slot A, but will not start with both memory modules installed in the slot B, the slot B is faulty and you'll have to replace the motherboard or use only one memory slot.

hopeyour problem solved

if you find this is helpful for you so please rate me this will encourage me todo more free work..
regards'
sandy

Normally, memory speed is automatically detected by the motherboard dependant upon the actual memory physically installed in the slots. More help may be available here:

http://www.msi.com/index.php?func=proddesc&maincat_no=1&prod_no=1525

Disconnect the AC adaptor from the laptop and remove the Battery pack from the Battery bay. Then, remove the RAM module and reinstall it after cleaning the RAM slot. Next, connect the AC adaptor to the laptop then try turning it ON. Please make sure that the AC adaptor is connected to a functional wall outlet. If the laptop still doesn't turn ON then you may try cleaning the Battery bay and the metal contacts in the battery compartment then insert the battery and try turning ON the laptop. If the laptop still doesn't turn ON then the issue is with the power supply unit.

The specs on the memory are correct, so you purchased the correct type of memory for this motherboard. If your getting no video when you power on with the 1gb stick, I would be willing to bet the 1gb stick is bad. Can you return it and try another stick?

If you haven't done so yet, take one of the cards, reformat it correctly (please ask again if you need info on how to do this) and see if you get any change. Are you using a PC card reader to transfer the photos or a USB cable? If you have a mains adaptor then try taking a set of pictures while still plugged in and see if you get the same problem. Your local camera shop may let you try this if you don't have an adaptor. If you don't get the same problem, then it is hopefully dirty battery terminals, which limit the available power/voltage for writing to the cf card. If you still get exactly the same problem when on AC power, then the most likely problem is dirt on the cf card slot terminals. The cf card slot pins are very hard to clean, battery terminals easier. Use a small amount of gin on a Q-tip/cotton bud for the battery contacts. best way with the Cf slot pins is a piece of new kitchen sponge(not the scratchy type) cut with scissors to a fraction larger than the cf card. push it gently in and out of the slot so the pins pierce it. a "hint" of gin on the sponge is necessary, but if you can get wetness when you squeeze it, it is too wet. Before you do any of these cleaning operations, have a very close look (with a magnifying glass if possible, and good light) to see if anything is actually strange in the battery compartment or card slot (the "dirt" is often grease and near invisible, so look for damaged or bent pins and insulation etc). Take any batteries etc out before cleaning and try to turn the camera on with no power source at least twice before touching the insides. If this doesn't help, or you need more assistance, then please ask. My next suspect would be the card, despite you trying two. CF cards are very temperamental. Try a third or fourth if you can do so without expense, just to be sure.