Dell 400SC

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Cpmiller22
    New Member
    • Mar 2011
    • 1
    #1

    Dell 400SC

    Hello-

    I'm new to the forums. I have a dell 400sc that has started rebooting intermittently and after some research I noticed my caps were bad (bulged and leaking). I ordered replacement caps (nichicon 820 6.3v) and replaced them on my board. After I put things back together, when I push the power switch everything spins up for barely a second but doesn't actually turn on. Any thought/suggestions would be much appreciated!

    Chris
    Tags: None
    • dood
      Deputy dood
      • Mar 2004
      • 2462
      • USA
      #2
      Re: Dell 400SC

      Sounds like a short somewhere. Check your soldering to make sure you didn't bridge any connections, and make sure the board is mounted properly in the case.
      Ludicrous gibs!

        Comment

        • delaware74b
          Badcaps Veteran
          • Apr 2009
          • 628
          • USA
          #3
          Re: Dell 400SC

          You could also have a replacement cap reverse polarity. Reverse caps will cause power supply to 'fold back' and shut down. How do I know...... been there, done that, got the t-shirt.
          Stupidity should be a crime, especially for drivers. I have NO patience for them.

            Comment

            • Uranium-235
              Comrade Glimmer
              • Aug 2007
              • 5042
              • US
              #4
              Re: Dell 400SC

              I had a gx270 do the same thing on me after replacing some caps backwards. switched them all out again and it still did it =/
              Cap Datasheet Depot: http://www.paullinebarger.net/DS/
              ^If you have datasheets not listed PM me

                Comment

                Previous template Next

                Related Topics

                Collapse
                • Bowline
                  Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
                  by Bowline
                  My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

                  Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

                  My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
                  The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
                  I have tried multiple different Dell power adapters. My Dell...
                  06-11-2025, 10:13 AM
                • siuras676
                  Dell XPS Plus 9320 blue screen and rebooting
                  by siuras676
                  Hi everyone,
                  I have a Dell XPS 9320 in for repair, and the machine has a strange issue.

                  First, a bit of history: the laptop came in after liquid damage and was completely dead. I've repaired all the broken traces, replaced the damaged components, and it now powers on.

                  However, it's now showing a Windows blue screen related to hardware (as seen in the picture), along with another Dell error I've never seen before.

                  Has anyone encountered this issue on a Dell machine before and could point me in the right direction? I've checked the power rails around...
                  2 Photos
                  04-07-2025, 12:10 PM
                • F R 2568
                  Dell Latitude 5420 does not start (no post) need help to find the reason why
                  by F R 2568
                  Hello all,

                  this is my first post, so if I make mistakes please do not hesitate to point them out, thank you in advance.

                  I got a Dell Latitude 5420 (Service Tag: 7RFM6D3, Motherboard: GDF40 LA-491P Rev.: 2.0 (A01)) which does not start and I want to repair it. These are the symptoms:

                  If the laptop is only connected to the AC adapter (battery removed):

                  When I press the power button, the keyboard backlight and the display backlight are turning on. Caps key light is lightning, but key does not respond to pressing it.

                  The power/battery...
                  01-08-2025, 05:45 AM
                • diamon
                  Looking for Dell Latitude 5520 / 5530 / 5540 RJ45 network connector replacement
                  by diamon
                  I have a Dell Latitude 5530 with a damaged RJ45 network connector. See the attached pictures.

                  Have already searched on Farnell / Aliexpress / Ebay and had contact with several suppliers on Aliexpress and Ebay, but they cannot deliver this connector.
                  Is there someone inside the EU, who has these connector(s) or perhaps defective motherboard(s) for these laptop models I have mentioned in the topic title.

                  Pictures of these boards:
                  Dell Latitude 5520 https://www.ebay.com/itm/256052956663
                  Dell Latitude 5530 https://www.ebay.com/itm/125844181534
                  Dell...
                  4 Photos
                  02-28-2024, 12:51 PM
                • OntarioTL
                  Dell 5410 greyed out BT
                  by OntarioTL
                  Well I've learned something new today. Of all the Dell laptops I've come across I have never seen bluetooth greyed out, and only to learn this is during the build from Dell factory. I've tried to pull the original BIOS and fix with another dell with the same issue on the forums, however the original was not recovered from the forum upgrade so I cannot do a comparison to attempt the fix on my own.

                  If someone could help me out with this unit and I'll try the next one as so far I have 2 on my desk with this issue. Thanks in advance!

                  Dell Lattitude 5410
                  Service Tag...
                  07-25-2025, 01:28 PM
                • Loading...
                • No more items.
                Working...