My m9750 isnt working

Hey guys,

2 days ago, i started my computer and used it for around 2 hours, after that i turned it off, everything went fine


Today i've tried to turn it on, and when i press the power button the computer goes on for 2-3 seconds, then it turns off

ive noticed some things though, first all the fans were working, the HDD is working, and the RAM sticks are working fine, the other thing i noticed is that the screen doesnt go on, which indicates that there is something wrong , either the LCD connector has gone loose (i read that it cause a shutdown), or that one of the video cards has malfunctioned, the last thing is that this problem happened sometime before, back then i unpacked my laptop and waited for the other day to come, then plugged it and turned it on and everything went fine and just to make sure that its not a power problem, ive tried running on Battery or on AC only, but the problem remained the same

NBR members and AW representatives try to help me with this problem, and if you have a solution for it try to explain it.

EDIT: and before you say its a CPU problem, ive stressed it with Orthos the first time this problem has happened, and the CPU was perfectly fine.

 

Have you tried removing the battery, holding down the power button for about 10 seconds and then powering it up, without the battery in.

We had a laptop at work which seemed faulty. Tuened out to to be the power distribution board inside the laptop. Mains only is fine!!!

Just an idea?

OB

 

Ive tried that, but still no luck

 

Hmmm... you could connect it to an external screen? i don't know if your laptop has inbuilt graphics as well as the Nvidia card but, usually they have. You might have to mess with the Fn keys to get it to use the LCD only, if that works then youm ight be looking at a GPU issue.

Other than that, check the connections to the ribbon cable, like you already mentioned if it's loose it might be causing issues.

You mention that "computer goes on for 2-3 seconds, then it turns off" is that the actual Pc or just the screen or something like that. I was thinking that if the graphics card isn't working the Pc might run with no picture to indicate signs of life?

OB

 

it has SLI 7950 GTX, no built in GPU.

and as for shutting down, the whole laptop is shutting down not the screen only, but i thought its a GPU problem because when it turns on for 2-3 secs there is no signs of a visual

EDIT: i think i need to clearify something, when this issue happened at the first time, the battery went somewhat faulty, which means that if i try to Start the PC with battery, it would start for like a minuite, then the power drops from 100% to 5%

 

My M17X has 8800GTX Sli and a Mobo graphics chip... Seems odd yours woulnd't have the same, it's not that old...

Could be a bad boot sector on the HDD... Tries to boot Windows then fails...

You could see if you can boot from a CD/DVD other than that it seems yo may have power issues. With no battery inside your notebook, does it do the same when booting up?

OB

 

HDD doesnt seem to be the problem, removing it doesnt change anything

 

I suggest you check the LCD connections failing that it could be a hardware fault possibly the RAM. If i remember correctly when it boots it will run through basic hardware checks, RAM, HDD etc. Is's you have a failure somewhere?

OB

 

removing ram and HDD changes nothing, removing the rams will cause the Computer to shut down on and off Endlessly


EDIT: i think its something serious to do with the GPU or something,thanks for trying to help me +rep, am going off NBR for a long while again till this school year ends, hopefully by then am gonna get a new laptop or something



Cheers!

 

I've been experiencing very similar issues. For me, I have been able to get the computer to boot again by disconnecting the CMOS battery and reconnecting it. However, even with my computer booted I am now getting only half the graphics performance that I should be. I haven't had the time recently to debug it any further and was waiting for a day when I could call Roswell during business hours.

 

i just want to get the lappy to work, where do i find this Cmos thingy?

 

i think in your system its under the palm rest

 

How to reseat the CMOS battery from Alienware Support.

Al you have to do is unplug it, wait a couple of seconds and plug it back in.

 

ok, my laptop has been diagnosed that the whole mobo is fried, how much would it cost me to let Alienware replace it for me? i need a Quick answer because my dad is going to the US after 12 hours, so i want to know how much will it cost me so i can figuire if i should send it with him or not

 

If you are still under warranty, then it should be at no charge...otherwise, you will be paying for a new mobo+shipping+labor. Over $300 at least.

 

well i guess i'll keep it in the closet i have to say, it was a wonderful machine, but ive abused it

 

Actually,
the CMOS battery in the M9750 is stuck to a piece of velcro against the motherboard partially obscured by the heat pipe fot the primary GPU heat pipe. It's about as big around as a dime and is encased in black plastic with two wires (red and black) protruding. There is about two inches of wire till they get to a small white connector on the M.B. Just remove the cover on the bottom of your M9750 and you'll see it.

 

Wow, sorry mate, they were good machines.

Maybe it didn't like being tweaked?

So what you going to do now, M17 (",)

OB

 

Most likely that your second video card has given up functioning and was causing the primary video card to not display anything! Try pulling out the "Parent" video card - confusing i know but this is actually the second one and the "Daughter" video card is the primary card. If it works fine 100% of the time then you know the culprit, if it doesnt then either the Primary video card or the Motherboard are malfunctioning