Question about Toshiba satellite c660

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No screen on laptop

After cleaning dust from the cooler,i also put new thermal paste on processor but i did not realize that there is also an old paste on nvidia chipset near the processor. I put it all back and start the laptop,it turned on,fan is on,but there's no start beep and there is nothing on the screen. Then I remove all again and put the new paste on processor,remove the old from nvidia chipset and put a new there,but there's no screen again. thank you

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  • Contributor
  • 29 Answers

Make sure the cable connecting the display to the motherboard is seated properly. Disconnect it and reconnect it.

Posted on Mar 30, 2014

  • 10 more comments 
  • mancy
    mancy Mar 30, 2014

    the cable is connected properly. thanks anyway

  • mancy
    mancy Mar 30, 2014

    the electrician had a look on motherboard,he spotted that capacitore

  • mancy
    mancy Mar 30, 2014

    the electrician had a look on motherboard,he spotted that capacitors are bulging,in other words bigger then they should be. He said that they need to be changed and that easily can be the reason that there's no screen.

  • Chris Martin
    Chris Martin Mar 30, 2014

    That could be the reason fir no screen but this happened suddenly, correct? The more important question is what caused the capacitors to go so suddenly

  • Chris Martin
    Chris Martin Mar 30, 2014

    Are the blown capacitors close to the gpu?

  • mancy
    mancy Mar 30, 2014

    they are not blown yet but soon they could be :) there are approximately 7,8 bulging capacitors on one side of motherboard, on the other side of the board where is processor are two capacitors also bulging,so yes,it's sure that one of them is close to gpu.

  • Chris Martin
    Chris Martin Mar 30, 2014

    if its a significant bulge, then they are done already. They don't have to actually be broken open or leaking.

  • Chris Martin
    Chris Martin Mar 30, 2014

    You could desolder a couple and remove them from the mb and test them with a capacitance meter

  • mancy
    mancy Mar 30, 2014

    what if it's a graphic card?..which is..i think integrated beacouse i don't even see it. I would need to change the whole mb then?

  • mancy
    mancy Mar 30, 2014

    when i put new paste on processor i didn't realize that there is also an old paste on that nforce chip. That shouldn't have to be reason why there's no screen..right?

  • mancy
    mancy Mar 30, 2014

    later i put paste on that nforce chip also and a new again on processor.

  • mancy
    mancy Mar 30, 2014

    it's strange when i turn on laptop the fan turn on for about max.10 seconds..then stops (computer is still on..green led light is on) and after 30-40 seconds fan starts again and then it's on all the time till I shut the computer down. Maybe this is normal?

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SOURCE: laptop fails to start

motherboard lol sorry bud

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SOURCE: Found a Toshiba laptop, about 2 years old. Screen

at two years old it is basically exctinct already and the costs of laptops coming down so rapidly you can probably go on craigslist or ebay and find a cheap laptop that is working and ready to be portable. you can also try and sell the toshiba online for parts

Posted on Sep 02, 2009

  • 2976 Answers

SOURCE: Toshiba Satellite A75-S231 overheating and

I have a Satellite A75-S2292. It did the same thing to me. I just blow the vents & fans out weekly with canned air. I also have an under the laptop cooling fan, to increase the air flow. I haven't had it shut done for months, since I started doing some preventive maintenance.
The changing the thermal paste is not a good repair. Thermal paste will last for at least 20 years, under worse conditions than most computers will ever experience. Removing the processor chip, wiping everything clean & replacing the paste & chip just make more chances for damage.

Posted on Oct 29, 2009

jgwhomeequip
  • 1902 Answers

SOURCE: I tried to change the memory card and I realized

The memory card is either not fully locked into the socket, or you have it in backwards. Unless you broke the socket which doesnt seem to be the case. Remove the battery, remove the memory stick, press and hold the power button until no light are visible then replace the memory stick and insert the battery

Posted on Jan 10, 2010

bullet_okarn
  • 108 Answers

SOURCE: Satellite P10 S429 with black screen after heatsink change

you must have accidentally touched some other parts, just open up the laptop again & look for some unusual things try connecting the wires again. it must be not a big problem. just some loose connections.

Posted on Apr 16, 2010

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