Question about Toshiba Satellite M35X-S349 Notebook

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M35X does not boot up

My Toshiba M35X-S349 does not boot up. When I press the power button, the power light comes on, the cpu fan runs for a couple of seconds then stops. The power light is still on but the HDD does not sound like it is spinning and the HDD LED flashes then stops lighting up. I don’t hear any POST beep tones.
I initially thought it was a display problem because when I turned the laptop on it booted up for a minute or so and then went black. I pressed and released the closed cover switch but that did not bring the display back on.
About 4 weeks ago I replaced the (infamous) power connector on the motherboard and it was working fine for that period of time.
I have reseated the memory modules with no resolution and went in to reseat the cpu. Also checked internal cable connections. Still no resolution.
Tried to boot from CD but, that went nowhere.
Might I have a CPU issue??? Or is the motherboard the problem???
Any advice would be greatly appreciated. I thank you in advance.

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Re: M35X does not boot up

Several model Toshibas had this problem including M35X and M75X. There is a small power chip under the top cover bezel(above keyboard) that overheats and comes off the MB.This is a Maxim IC which Toshiba unfortunately used in several models till they all developed the 'no boot' problem. Some say heating it will reseat the IC but others replace the board. It is a design flaw that is why Toshiba extended the warranty. Good Luck!

Posted on Sep 03, 2012

Re: M35X does not boot up

This is a comon problem there are 2 peices/ parts you need to replace and sauder on and it should work good alsomake sure the unit is ground near the speakers

Posted on Oct 22, 2008

Re: M35X does not boot up

Tb estou com o mesmo problema =/

Posted on Aug 28, 2008

Re: M35X does not boot up

Its a design problem with the motherboard and where the power plugs into the board. It breaks and you have to buy new board or throw away the laptop.

Posted on Aug 18, 2008

Re: M35X does not boot up

I had the same problem after trying to overclock a satillite. the laptop did the same things. I tried everything including using the recovery disk, upgrading mem and replacing the HD. in the end I had it sent back to toshiba through best by under warranty and it came back with a scratch on the screen buy it booted up and has been fine. this rig has an intel 1.6 centrino chip and intel board, also I updated the bios to 1.5 and shared video memory went from 128mb to 64 mb.Toshiba sent back a repair order with the comment "an internal was made". I have also seen comments about the loss of shared video memory and while I have seen statements that both intel and toshiba are aware of the problem there is no fix that I have seen

Posted on Nov 06, 2007

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Re: M35X does not boot up

You know this model has a warranty extension till the last of November. If I were you, I'd be sendinng it in quick!!!
They are very good at getting your machine back in 2 or 3 days.
Good luck

Posted on Nov 06, 2007

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