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free download, NO HEAT, wont turn on, TROUBLESHOOTING, how to turn it on

NP9890 shut down (by 2 users)

posted by HermanO on Jul 29, 2007

Hi there
My NP9890 is giving me trouble. I was playing Scarface, and the computer shut down while playing. I turned it on, it would turn on for a few moments then shut down. I let it stand for a while, thinking that it could have overheated, turned it on again but still, wont stay up. Now it even shuts down before Windows loads. I've noticed that when turning the machine on, the Num Lock, Caps Lock and Scroll Lock lights start flashing simultaneously, and then the laptop shuts down.
I checked if the fans were operating, and they all seem fine. Perhaps my motherboard is fried? Or my video card? Or the vid card memory or internal memory?

Any ideas?

Comment by HermanO, posted on Jul 30, 2007

I've just recently about a week ago opened the laptop and removed a LOT of dust, it was sticking to the heat sinks. The laptop has been running much more smooth after that. Only yesterday I started having this problem of the laptop shutting down. I've done a lot of troubleshooting. I've removed the memory chips, put them in different slots, didn't help. Removed the heat sink of the CPU, looked if the sensor cable was in, took the CPU out looked for anything wrong there, looked at the video card, nothing seemed wrong there. But later I found that it would boot up with the one memory chip, and it's been better. Now it's okay. Also I downloaded a Nvidia tweaktool and slowed the clocking speed down, and it seems better now.
I like your idea of the vacuum to clean it up, I will definetely keep that in mind for keeping it free from dust.
I will let you know if I have further issues.
Many thanks for actually looking at this thread and helping me! Thank you very much!!

Comment by HermanO, posted on Jul 31, 2007

No, it's still shutting down every now and then, but better than before. It does help underclocking the card though

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1 Other User Has The Same Problem

Comment by Michel142857, posted on Feb 25, 2008

I have a very similar problem, and I found that the bios is not able to recognize my HD (ATA) or recognize it as a SATA. The HD has no problems on another PC. No solution up to here, probably I have to change the mother board.... very funy.

Best Solution

posted on Jul 30, 2007

LRL Computer

Rank:

Wiz
Rating: 84%, 70 votes

If it is an overheating problem try turning the laptop off, turning it over and placing a vacum on the fan grill on the bottom. Many laptops get a dirt buildup internally and this will sometimes suck out the dirt.

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