Dell Laptop No Power

Illuyer

Honorable
Jul 18, 2013
4
0
10,510
Well, my laptop (Dell L702X) won't boot at all.
It was working perfectly fine 2 days ago, and I turned it off for about 30 min, and when I tried to turn it back on, it wouldn't even start. Then I removed the battery (which was pretty much dead/doesn't hold charge) and plugged it in, and the laptop beeped twice (short) and turned off. It would do that every time I plugged it in without the battery. I disassembled the laptop in hopes that there was a small dust particle stuck somewhere or something, and reapplied the thermal paste just because, and now it's even worse. Pressing the power button does absolutely nothing; there's no sign of any power going into the laptop as opposed to before when the XPS light would at least be on.

Now why is this happening?

-It was raining prior to turning the laptop off, and it was sitting next to the window, but I doubt any rain got into the laptop, and if it did, it wasn't more than a few drops.
-The battery has been dead for a while and it may have finally decided to die completely, but shouldn't the laptop start without it anyway? It used to at least.
-I looked up 2 beeps and it all talks about Ram failure, but I've had that problem before and the computer never acted the way it did (I have tried reseating them, trying with 1 stick etc.)
-Could it be a parity circuit failure? If so, what are my options?
-I've also taken the coin battery out and put it back in, as well as holding the power button down with the laptop unplugged.

Any help would be appreciated.

Specs:

i7-2720QM
8GB Corsair RAM
3GB GT555M + Intel HD3000 (Optimus enabled)
128GB Samsung 840 SSD
500GB HDD
 
Where did you find your information about the beep code being in relation to bad memory? Since you're getting absolutely nothing now, it's most likely not the RAM, but rather, system board failure - though it's a little difficult to troubleshoot what component specifically is at fault from my end.
 

Illuyer

Honorable
Jul 18, 2013
4
0
10,510
I don't remember, and I'm not even sure if it applies to my laptop, but it's something I ruled out anyway.
Aye, the power adapter and e'erything were also confirmed to be working and ruled out, so it could either be the AC jack, or the mobo I believe.
Now I could get a one year warranty from Dell for $300 and send it in, OR I could order a refurb mobo from eBay for $150-200 and hope that the problem lies in the mobo. Those two seem like my only options at this point as I don't want to take it into Geek Squad or anything. I just wish I could pinpoint the problem..

P.S. I took it to a guy who repairs computes for a living, and he couldn't figure out the problem either (I had already done everything he had done).
 

Illuyer

Honorable
Jul 18, 2013
4
0
10,510


I'd rather get the mobo and install it myself, but I just don't want to swap it and the problem end up being something else..

No one has any thoughts on what the problem could be?

 

Illuyer

Honorable
Jul 18, 2013
4
0
10,510
Well, I got a new mobo, which ended up being a GT550M, but it worked flawlessly for about 3 days, and then the same problem occurred (read 2 pages back).

So I returned the mobo for a full refund (was going to anyway since it was false description), and got a GT555M one. I just installed it, and no success. Assuming the mobo isn't broken (it was a refurb from a highly trusted eBay seller), what else could be the problem?
I plan on getting a new AC jack, and a new palmrest (I broke the ribbon for the power button), but I get no lights on the laptop besides the battery charging one anyway.

Anyone else have any thoughts? Scotty?

Cheers