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m7700 not booting/freezing

post #1 of 23
Thread Starter 
Hi,
I've played with this laptop for about 2 years now.
It is the

P4 3.2ghz
1gig ram
60gb hd
gf 6800 go

The first major issue i've just recently started having was that it would randomly not power on correctly. It would continuously read the dvd/cdrom drive as it clicks before it even gets to the POST and Bios option screens. I had taken the laptop apart, cleaned it, and reassembled it and it ran alright for a few nights. Just randomly started happening again, this time I couldn't fix the issue using the same methods. Eventually while it was powered on and just not loading or getting to the post screens, I basically laid my arm down in disgust over the touchpad which is directly over the hard drive, and it loaded right up. Afterwards I've checked the area of the hard drive, in and around, seems to be fine, no dust no damage. For the past few months it's been on and off the same issue, where I would have to give it a love tap in order to get it to run at times.

At this point it's worsened, I went out and bought the new command & conquer 3. I had to make disk space before installing it so I got rid of a few other games which unwillingly. After removing the games, I had a good amount of disk space left to possibly defrag effectively, World of Warcraft has always had a real large 3gig file thats been hugely fragmented, I've installed C&C3 at this point already and still have about 17 - 21% free disk space. I start the defrag, the laptop freezes when it gets to 3% done. I have to reboot, starts up fine no issues. I load the game and it plays for about 15 minutes then freezes. Restart, load the game freezes just after the menu screens for the game. Now it is freezing when loading any type of large application, or scanning of the hard drive IE windows update/virus scan/defrag/games/check disk before OS loads. This leads me to believe there is possibly something wrong with the hard drive, but as this is my first laptop, I don't understand if this relates to the issue of not booting at times. I'm going to try and get hold of another hard drive and test to see if it runs better or at all, but should it not get to the POST/cmos/bios screens even without a hard drive plugged in? Or is there something different about laptops/alienware pc's?
I have the money to go build another PC, but I really would like to get this atleast working rather than having a $3,000 paperweight.

I work in tech support but only deal with internet connectivity issues. As it doesnt get to the post screens I would assume it is an issue with the motherboard, but then again why would it work at times and not at others, then yet again why would bumping the hard drive cause it to start up. Did the memcheck which passes, any other suggestions would be awesome.
post #2 of 23
It may be your motherboard failing. If that's the case, eventually it won't post, you'll just get lights and fans...

You still under warranty?

The Clevo d900t has been discontinued, so I'm not sure you'll be able to source another motherboard, but you might consider replacing it with a d900k motherboard and an AMD processor. You should also be able to upgrade the video card with a new mobo.

rjtech.com sells parts for this model.
post #3 of 23
Thread Starter 
I can take every device out of the laptop and it operates the same in the fact that I have a black screen staring at me indefinately. I did find a loose screw receptor after taking it apart again, it was missing from where the video card heat sink screws into the motherboard, not certain but thinking maybe this shorted out the board. Not sure though as I never heard rattling before this, and the fact that it was just laying under the laptop after I got back to my desk from lunch. I believe all other parts are in working order.

No warranty though, I'm a pretty heavy penny-pincher, guess it's getting back at me though with this.

http://www.rjtech.com/miva/merchant...._Code=MB-D900T

They seem to be letting me add this to a cart so I'm guessing they have these in stock. Would there be any soldering involved, or is this all connector based when removing/installing a new laptop motherboard? Is there any other device or piece of hardware that would prevent the computer from reaching the post or bios screens? Other than the LCD which it should not be as I can hear it checking the dvdrom drive continuously before it tries to get to the post screens, therefore its not booting to the point where the LCD would turn on.

I'm pretty syked if I can order and install this to repair my issue.

At about a 5% rate I can get it to start up correctly, althought it doesnt operate for long after booting into windows, I think this is a different issue that I caused with the hard drive, but I can leave it idle at "No OS Found" after removing the DVD-rom drive, the Battery Pack, and the Hard drive. But as I said with or without these pieces of hardware I can only get it to load the bios/post screens about 5 times out of 100 so it's sort of a random or hit or miss after powering up and down, removing the power supply cord, plugging it back in, and tapping the touch pad.

So as long as there's no other piece of hardware that you or anyone can think of that would cause it not to POST, it sucks price-wise, but is awesome if I can pin point the motherboard as the problem and get this fixed.

Going to take it apart once more and see if I find any visible problems on the motherboard, and to see if it looks easy enough to take out and replace.

Thanks hammerhead, and anyone else who may have any other suggestions!
post #4 of 23
My symptoms were the exact same as yours. It would power up, but the CD-rom would only click and the leds would come on, but it wouldn't boot. I pulled the RAM and HD and reinstalled, and it all worked. The very next day, it just decided that it would only come on, give me two beeps and shut down. It just repeats that process until I turn it off.

I put in new RAM, and it still does it. I'll be purchasing a new system board to hopefully fix the problem.
post #5 of 23
If rjtech.com shows it as in stock, you can try to order it. Others here have received emails from them saying they aren't sure they'll be able to get any more.

Usually, it's a small component near the DC connector that fries, but it sounds like it also could be the hd controller. I assume you've tried reloading the RAID drivers...

I don't think the parts on the mobo can be replaced, so it looks like the best bet would be a new mobo.

You can also look at the d900k mobo. It's for AMD processors, but it's much newer and may be more reliable.

There are no solder connections, just screws, so you should be good to go with the repair once you get the parts. Lots of screws though, so keep track.
post #6 of 23
If you do go down this path, look for a post by Omagian in this forum - he included links to photos of his 7700 that he pulled apart and reassembled, they should aid you in the process.
post #7 of 23
Sorry to bump a somewhat old post, but I've recently experienced the death of my laptop of the same model.

Same symptoms for the most part. I go to turn it on and all I would get is the CD-Rom clicking over and over and over. I've stripped it, cleaned it, reassembled it all to no avail. While I was looking through it's internals I didn't notice any shorts or smell anything to show one occurred.

I'm at a loss as to what to do w/ it now. It's sickening that I've barely had my laptop more than a year to have it die like this.

So... those of you w/ the same laptop death, did you try to purchase and/or install the replacement mobo that was recommended? If so, did it fix your problem?

It is a somewhat pricey fix, and am somewhat hoping theres a cheaper solution.

Any and all help is very welcome.
post #8 of 23
Hi Romel,

Unfortunately I had the exact same problem with mine when it was sent back for repair #2, and yes it was a complete motherboard replacement. The only thing I can suggest is try and make sure you get a 6.1 or 6.2 replacement motherboard, as they seem to be a lot more resilient.
post #9 of 23
I am having the same problem with the CD clicking and my screen flashing before the POST. Mine so far has gotten past it but some times I have to power it down and back up to get it to go. A couple of times I have turned it over when it was stuck it its loop and that seemed to get it past it. I don't have any problems once its booted up.

I am like the others who posted above in that I don't mind replacing the MB it thats what it takes to resolve it. Strange how there seems to be several 7700 units out there experiences the same symptoms.
post #10 of 23
I think had the same issue with my m7700, but mine beeped twice in quick succession after the Alienware Logo/POST process. Turned out to be the RAID controller. Strange thing was, occasionally, I could get the system to boot. I'd get into windows, and about five to 20 minutes later, it would halt, and it would then just sit there. No blue screen, nothing. Mouse and keyboard locked, but whatever I was doing at the time, just stayed there on the screen. I ended up booting into Knoppix to retrieve my data.

The 7700 seemed plagued by issues overall. I blame Clevo.

Regarding getting it fixed. I didn't. Considering I sent my system in three times already (two video cards and a mobo,) I finally just traded it in to Alienware for a store credit of current market value and ordered myself a 7500 desktop. I figure I got plenty of use out of the lappy, so market value was actually quite generous.

Note: The laptop was still under warranty for me when I traded, and I'm rather persistant, so I can't say that the same deal will be offered to others. Regardless, if you get in contact with the right people, they'll do what they can to work with you.
post #11 of 23
how much did you get for you laptop?
post #12 of 23
well i own 2 m7700's i suggest before buying a replacement board you reseat the ram, video card, processor, hdd's and cd-rom drives one of mine wouldnt boot after not using it for a while, i reseated everything and it hasnt given me 1 problem to date

also to help extend the life of these units you should air blast the fans once a month.

there is also a black cover on the video card fan, remove the gpu from the system, and remove that shield and take the chunck of dirt that is in there out

i applyed Thermal Take Silver to both of the gpus and cpus and noticed a nice drop in tempature (it dosnt burn my lap anymore while gaming on it ), i think the extream heat has alot to do with all the motherboard failures the D900T/K platform is prone to
post #13 of 23
Try boot whit one ram memory module only.
After that, try with other one.
post #14 of 23
Well I am new to the board here, but I have the same m7700 also and it was....I stress was, experiencing intermittent boots. as of day before yesterday, it wont post or boot. DVD burner clicks, lights light up and the processor gets hot, fans turn but no go. I will be stripping this dog apart to see if I can have any luck with repairing it myself. maybe the electronics gods will be smiling on me. Also we'll see if $21000.00 worth of electronics education will help any.

If anybody knows the exact part that is suspect let me know.

BTW, I stripped everything out of the case down to the Mo-Board and it the same deal. I tried reseating everything first which was a waste of time for me.

Thanks, SLPDAVE.
post #15 of 23
I may have found the culprit. There are 2 transistors that are soldered together in the same polarity (base to base, collector to collector, emitter to emitter. If I am correct on the part number, they should run 60V base to emitter or base to collector. They are measuring 0Volts across them with power applied to the board.

They are right behind the power connector. I will desolder them and test them tomorrow to see if they function like a transistor out of circuit.

I will report back tomorrow.

Goodnight to all,
SLPDAVE
post #16 of 23
Transistors, or diodes? Can you identify the part# silkscreened on the motherboard for reference?

If you're talking about the two black chips running in parallel next to the "R050" resistors, those are diodes. They are indeed a common failure point on these boards, especially the older generation boards.

The chips are easy enough to replace, but I've rarely seen that fix being the sole repair to get a "dead" motherboard fully operational again. (In my experience, it was the sole fix when the chips are visibly destroyed on older boards, though...)

In fact, I've got a pair of boards that I did that repair on, and I'm still scratching my head on... haven't had time to do a more thorough analysis yet, so I'm very interested in your findings.
post #17 of 23
I will try to identify the parts better when I can "catch my breath", I just started a new job, and with 2 kids, a wife, a dog and a 54 year old house that is in constant need of repairs I stay kinda busy.

the 2 parts I am referring to are directly behind the power connector (2 surface mound parts sit between them and the power connector. They may be diodes but why would a diode have 3 legs? that is why I went with transistor but I have been wrong before and I guess this could be no different. There are 2 of them sitting on top of one another soldered together. they should be fairly easy to remove and check. so as soon as I get some time and I am not tired I will remove.

I haven't heard from jtech today maybe they will get back to me by the end of the week, I wouldn't be averse to putting an AMD chip in the body on a new board if it is cost effective is my problem.

David
post #18 of 23
two chips, one atop another... OK, that sounds like a 5.x motherboard.

Internally the chip is two diodes - each of the smaller legs is one diode, and the tab is the common endpoint for the diodes. When you remove the chips, you'll find that the solder pads for the two smaller legs are electrically connected (0 ohms).

The chips are stacked atop each other in parallel, presumably to allow more current through without overloading and burning out the original chip(s).

Attached is a photo of a 5.x board, after removing some faulty components for a complete rework of the area.


Hope this helps. :-)
LL
post #19 of 23
Yep the circle is where the parts in question do reside. Also I am reading a dead short across the 2 components between the power connector and the diode's you pointed out. So I believe part of my problem is from whatever is shorted in that area.
post #20 of 23
OK, I am not having any luck tracing down the bad part on the board. I have been quoted a new motherbaord that is either V. 6.1 or 6.2.

My question is this, is the V. 6.1 or 6.2 boards any more reliable than the V. 5.6 that was in my laptop.

slpdave
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