[cl0udedth0ught]

I bought a acer aspire 5739g about a year ago for my wife for light gaming and web use. Specs are as followed.

-Intel Core 2 duo
-4 gigs of ram
-Nvidia 230m dedicated video
-300gb sata hard drive

It started overheating during gameplay and shutting off so i figured I could just open it up and blow out the dust and it would be fine. I did remove all the dust and this fixed the problem for about a month but then one day it just froze while playing black ops and shut off. I took it back apart and reseated everything and reapplied thermal grease to the processor and video card dies(as they had almost none). It still won't turn on. When you hit the power button, you hear the hard drive spin briefly and the processor fan spins for like 2 seconds and stop. The power button stays lit but it will not POST.
I'm a network technician so i'm not clueless about computers but i've tried everything I know to get this thing to POST. So, my question is, did it fry the processor or the dedicated video card? I'm not super experienced with laptop repair so I was a little surpirsed that the video card plugged into a slot similar to a desktop. Any help would be greatly appreciated.

Thanks,

Jon

 

[cl0udedth0ught]

My wife's acer aspire 5739g which is a little over a year old started freezing and shutting off during gameplay. Even the sims 3 made this thing shut off. So I took it apart, cleaned out the dust, and it was fine for about a month. Then, while playing black ops, it froze and shut off. Specs are as followed.

-Intel Core 2 duo socket P processor
-Nvidia geforce 230m dedicated video
-4 gigs of DDR3 ram
-300gb sata hard drive

I have not been able to get it to POST since that incident. When you hit the power button, you can hear the hard drive spin and the processor fan will spin for a few seconds and then stop. The power button will stay lit however, it will not POST. I tried reapplying thermal grease to the processor and video card dies and took it completely apart to look for anything obvious not couldn't find anthing wrong. The video card plugs into a slot similar to a desktop so my thought is it fried the dedicated video card or processor from overheating. Any thoughts as to which one?......Or any suggestions as i do not want to dump much money into a year old midgrade laptop.

 

[GZ]

There is a good chance that the GPU has met it's end.

I would like you to follow the steps in the following linked thread closely.

Please post back the results, including any change, no matter how minor after each step.

http://www.techsupportforum.com/f108/black-screen-issues-and-troubleshooting-498132.html

Thanks,
GZ

 

[cl0udedth0ught]

Update.

Actually, I cleared the CMOS and got nothing and then tried it last night after it sat around for a few days and it now decided to boot up fine (which makes no sense). However, the wifi no longer works now. I've messed with it for hours trying to get it to connect to two different routers. It sees different networks around my house even but it won't connect to anything even right next to the router. Heres what I've tried.

-Reseating wireless card. (Intel 5100n wireless card)
-Checked and reconnected black and white wires that run to wireless card
-Updated to latest drivers
-reset router
-tried a different router

Other devices will connect to the router. Did I mess something up when I disassembled the whole laptop possibly? Thanks for your help on the POSTing problem but any suggestions on this?

 

[GZ]

You can try switching the antenna wires on the WiFi NIC. There should be two antennae attached to the card, swap their places.

 

[cl0udedth0ught]

Network card issue

I tried that already....Not sure what to do. :4-dontkno

 

[CavalierBH]

Interesting. I have the same notebook (Acer Aspire 5739G) with absolutely the same problem.
After few months, the computer randomly start freezing after some minutes on. Then I have to wait few hours to power on again.
The coolers are working fine. I don't know what to do anymore. This problem also occur independently from OS. It freezes in Windows or in Linux. Sometimes it freezes even in GRUB (before any OS is loaded). In the worst case, it simply does not power on.

Many people had the same problem [1]. Some said that configuring some software (like PowerMizer) fixes the problem. I didn't think so because the problem does not occur only in Windows.

[1] http://forum.notebookreview.com/acer/435432-help-acer-aspire-5739g-irregularly-crashes-15.html