Jump to content
EwinRacing Flash Series Gaming Chairs
Soapy

Reversed polarity on m15x jack, system compromised.

Recommended Posts

I reversed the input polarity on my m15x jack after a botched psu repair. Computer worked fine, but overall power control is messed up. System only boot on both battery and psu, no battery charge, and a very low battery drain (arround 6wh).

 

I aways had battery issues whith my 8 years old m15x after my original battery died. Bought a new one two years ago, didn't work. Checked on upower, basically no info on manufacturer, power or history. So i refunded and used the system hooked on the psu as usual. In August i bought a new one, worked flawlessly for a day. The next day the battery died from nowere. Checked upower, bus was ok, battery was charging extremely slowly (6wh), history showed subpar disharge before shutting down. I got mad at this point, decided that psu was to blame. Opened it, checked everything, noticed some wear on the male jack. Resoldered it, connected on computer. Nothing happened, so i checked the voltage. That's when i realised that i screwed up big time. I swaped the positive and negative wires. Decided that one mistake was enough, so i sent my m15x to a trusted repair shop (latter found that they just hooked the battery and gave me back as soon as it booted, they didnt even open it). Got my pc a week later, but the battery didn't charge . Worse, it was slowly discharging (same 6wh as before), and it needed both the psu and the battery to turn on. At 65%, it worked as usual for my college semester, but the battery is dead, and so is my computer. I bellieve i burned some voltage controller or something. I'm pretty competent at soldering thing's (evem smd components) when i know what to do, and i can understand simple circuit's, but when i got my hands on the m15x datasheet i got overblown. I cant make heads or tails about it. I aways lurked this forum and i bellieve your guys are the best when it comes to finding creative solutions to technical problems concerning microelectronics. I followed a guide in this forum as a teenager to upgrade this same computer to a gtx680m, overclocked stuff, got custom bios, and had a lot of fun learning. The m15x is a deprecated platform, but it's a part of my history that i dont want to let go.

So please guys, help me.

 

Edited by Soapy
Typos

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Content

    • By Zauih840
      Hello, as the title states, I would be very happy if someone could give me the link to the mod, apart from that, what version should I install?, as I've seen that some models have v1 and v2.
      My other questions are: what do I have to do to install a new GPU?, (9xx series)
      And what mods do I have to use to have a 10x0 series (and which are compatible).
      I have the Clevo P150SM(model)/P150SM-A(product code) (2 models on the sticker) with stock bios (it says copyright 2012, so I guess it's the 1st version) with a 4710MQ and 870M.
       
      I would be very pleased if someone could hand me the link.
      Many thanks in advance.
    • By Eder
      Hola tengo problemas con una k3000m Dell precisión m6700 lo quiero para gaming he visto que hay personas que lograron hacer OC podrían decirme cómo desde 0 porfavor.
      gracias
    • By FlubDaBlub
      Hi all! I am wondering if it's possible to remove the bios whitelist easily. Because of the whitelist, my external gpu setup that I got recently refuses to work. If it helps at all, I know that the wifi card that used to be in the slot was the intel 8265ngw. Here's the bios link if that helps too: laptops and netbooks :: thinkpad x series laptops :: thinkpad x380 yoga :: 20lj :: 20ljs20n00 :: mp1e15eb - Lenovo Support US
      Thanks for your help!
    • By jonasmsi
      Hey i have an idea to change my old msi gx720 laptop Motherboard to one from a msi gx740 they look to have the same cutouts to screws and both laptops chassis look to be the same with outputs and that so my question is do you guys think it is possible to do it
       
       
      msi gx720 motherboard – Google Søgning                    msi gx740 motherboard – Google Søgning
    • By PepoJ
      Hello there!
      I am new on the forum. I'd need some help. I own a lenovo ideacentre t540-icb g, and i would need to unlock all the options in my bios, especially overclocking and thermal configuration. I tried with both amibcp and mmtool, but i didn't succeed (Error 18).
      I wonder if you could help me or give me some advice.
      Thanks in advance.
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.