No display on laptop.

woworwow · Jul 27, 2014

Hi, i have a NEC versa s940. When i press the power button the laptop turns on but i got no display. All the LEDs are working. The CPU fan turns on and then off after a few seconds.
I tried taking the laptop apart and i found some yellow stuff near the CPU or GPU.

jarotech · Jul 27, 2014

Hi, a picture of the yellow substance would help to identify what it is.

woworwow · Jul 28, 2014

Here's the picture. Sorry for low quality and late reply..
http://tinypic.com/r/9qv3oi/8

jarotech · Jul 29, 2014

Do you know if a liquid has entered inside the laptop?

woworwow · Jul 29, 2014

I don't think so. But i haven't used it for quite a while.
What is that yellow substance?

jarotech · Jul 30, 2014

Sorry, I can't see close enough to identify the substance, only a liquid could do that. You can clean it with alcohol, and see if the problem is solve.

woworwow · Jul 30, 2014

It's hard like a rock.

jarotech · Jul 30, 2014

I hope it's not a glue, it will be difficult to remove.

woworwow · Jul 30, 2014

If i remove it, will it work again?

jarotech · Jul 30, 2014

That is the question, does this yellow substance has something to do with your problem? Before removing the substance, try the usual troubleshooting, removing the RAM, if you have two, exchange the location and one at a time. If after a few seconds everything is off, try with just the adapter, verify the voltage of the adapter...

woworwow · Jul 30, 2014

I tried all the basic stuff.
Re- seating the CPU and RAM, starting without battery.
The yellow thing is the only thing in my mind.
Oh, i remember when i found this for the first time, i found the same yellow stuff but this one has darker colur. And this one, i can clean it off. It's not hard. But it's sticky almost like a thick thermal paste but it's dark brown

jarotech · Jul 30, 2014

I don't really know what it is, the laptop has it been repaired before? Perhaps they used the resin when they reflowed the chips, I speculate at this time.

woworwow · Jul 30, 2014

Yes, it has been repaired before

jarotech · Jul 30, 2014

Maybe they reflowed the chips and the yellow stuff comes from what they did, perhaps, you need to reflow the chips again.

woworwow · Jul 30, 2014

But i don't have the tools.
Any idea how much the equipment costs?
Or should i just buy a new motherboard for it?

jarotech · Jul 30, 2014

It will be cheaper to buy a new motherboard, instead of buying the equipment for using it only once.

woworwow · Jul 30, 2014

Ok then, i'll just get a new laptop. It's an old laptop anyway. Thanks for helping out.

No display on laptop.

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