CF-53 Flashing Keyboard

Hi,

My laptop is not firing up. There is the following sequence: charging light green flash then immediately HD light green flash then the whole keyboard lights up (flashes) and repeats.

Tried removing battery pressing power for more than 20 seconds
Tried removing HD and re-inserting

This is with both power cord and battery plugged in unplugged etc

Searched most available manuals but do not see anything related unless I missed it.

Any ideas?

 

Ram, remove one piece at a time and try it.

 

Yup... I'm thinking RAM if it isn't passing post. Only other thing I can think of is a bad Mobo...

 

The touchscreen version of the 53 had a nasty habit of frying the mobo.

 

Yes they do.
I am guessing the motherboard is toast.

 

Unbelievable!

Device is non-touch screen in case anyone runs into the same situation.

So I unplug everything, open up the RAM bay, take each out, put each back in, close everything, and fire it up. Nothing.

I then open it up again, remove one stick fire it up and it works!
I then remove that stick and put the other in and fire it up and it works!

I then put both sticks back in and close everything up and fire it up and it doesn't work!

What the.

Open it up again, repeat the above and fire it up and it works!

Okay what did I miss. Aha! I did not close it up.

I look at the ram bay cover and touch/feel it and low and behold the ever most slight indentation effectively the whole cover itself is ever so slightly concave. Piece of cheap thin tin actually.

I manipulate it so that by touch it feels "flat" put it back on and fire it up and it works!

Stupid stupid stupid !

Thanks all, if it wasn't for pointing to the RAM would never ever have fiddled around in there and discovered it. tl;dr ram bay cover was dented inwards pressing against the sticks.

 

CRUD...We have to admit that Kerri was right...Man that hurts to say...

 

All of my personalties. It seems a group rate is cheaper, so I got several..

 

Since OP solved his problem (thanks I'll keep that fix in my hip pocket!) - may I jump in to ask for some expansion on the mobo frying?

I'm just putting one of these into service; it came with a touchscreen which I don't have much use for. If I disable the touchscreen in the BIOS (setting "tablet" vs. "touchscreen") presumably that will keep the screen capacitors from charging up?

 

This thread has some more detail

http://forum.notebookreview.com/thr...n-now-more-issues-after-screen-change.806376/

That BIOS setting Touch/tablet doesn't disable the touchscreen, it just changes how the OS sees it.

 

the "capacitors" referenced are (i believe) part of the power supply for the CCFLs ... these have nothing to do with the touch screen proper .

 

Thanks gentlemen. A little googling indicates that these touchscreens are resistive not capacitative anyway.

Yes that thread does indeed provide helpful detail about the problem. I'll keep my fingers crossed.

 

led backlight on all CF53's

 

To the op, I would insulate that ram cover as it is so flimsy to prevent that happening again. Might smoke it the second time around.

 

must be a different model i was thinking of .