Asus C90s no video, cpu and vga fans not spinning

Hi everyone. I bought an ASUS C90s laptop and it ended up breaking and not posting any video. I ended up having it professionally diagnosed and they said that it was a motherboard issue. So I bought a new motherboard, replaced it, and I'm still not getting any video on the LCD. I presume that it must be the video card, BUT the thing that worries me is that the VGA and the CPU fans are not spinning during boot up. Does anyone know what the problem could be? It seems like the motherboard I purchased is working because when I turn it on and press the caps lock and num lock keys, they light indicators recognize that I pressed it. Anyways, please let me know. Any help would be greatly appreciated.


Specs:
ASUS C90S
8600GT MXM II
Intel Dual Core 2.4 Ghz
2 GB DDR2 Ram
160 GB HD

 

There might be multiple issues. Research on "baking GPU". I was able to bake mine to life twice. Just follow the instructions and be careful not to overdo it.

 

Hi everyone. I bought an ASUS C90s laptop and it ended up breaking and not posting any video. I ended up having it professionally diagnosed and they said that it was a motherboard issue. So I bought a new motherboard, replaced it, and I'm still not getting any video on the LCD. I presume that it must be the video card, BUT the thing that worries me is that the VGA and the CPU fans are not spinning during boot up. Does anyone know what the problem could be? It seems like the motherboard I purchased is working because when I turn it on and press the caps lock and num lock keys, they light indicators recognize that I pressed it. Anyways, please let me know. Any help would be greatly appreciated.


I have few question your video card in inboard type for your laptop???

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When you had issues with your gpu, did it cause the fans to stop functioning?

 

Quite frankly I did not check whether the fans were spinning. I definitely saw the hdd light blink indicating that there was power.

 

Sounds like a vid card problem. Either bake it as suggested or pick up a new one off e-bay. The 8600M GT's are very cheap or even better upgrade to a 9600M GT : http://forum.notebookreview.com/asus/316079-nw-upgrade-c90s-9600m-gt-512mb-ddr3-fixed.html

 

Not to be rude to all those that have replied to my thread, but is anybody sure that it is the video card? I don. Want to bake my video card and risk damaging it if it's not the culprit behind this. Will a faulty video card affec the CPU and VGA fans?

 

It's hard to say for certain if it's your video card, but there is a good chance it is. It is a common problem with this particular laptop.

Before you bake though, you might try swapping out your ram with some known good ram first and see if that helps. Mine was doing the same thing yours was at one point and it ended up being the ram.

 

Welll considering the current state of your laptop and the troublershooting you have done so far, there are not that many options left that you can do to fix it. Unfortunately there are no diagnostic tools that can pinpoint exactly which component is defective. Its all trial and error; testing each component one by one. Assuming you already check all connections from the new motherboard to the screen then the components you have to check next, as suggested, are the video card and memory.