Let your Mobo warmup before testing

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Neo2_000
    Senior Member
    • Apr 2005
    • 180
    #1

    Let your Mobo warmup before testing

    Have been seeing a few Elite P4S5A Mobos recently. G-Luxon caps falling over. Looks like a run of them will be failing soon.

    Felt sorry for one customer. His home PC had badcaps. The plan was to upgrade his business PC to a new one and use the old business PC to replace his failed home one. Good plan but after the business PC was replaced, we then found that it had swollen caps too!

    Anyway, it would not even boot after we had moved it - electrolyte had leaked out onto the mobo in a few places. There were only 4 obviously defective caps.

    What I have been doing lately, is just replacing the obvious badcaps first and seeing whether the mobo will boot or not so as to get some idea of my chances of success.

    Well when I tested this one, I got quite a surprise. At first it would not boot but after leaving the power supply on for 5 minutes or so and then trying it again - behold, it boots!

    Just goes to show that the other caps were in such dubious shape that the board needed some minutes before it warmed up enough to boot successfully. So lesson learned - let the board warm up before passing any judgements.

    If i was really interested, the next step would have been a complete ESR test on caps 470uF and above after which I would have replaced anything really bad before testing again.

    Since I am just testing at this stage and not replacing too many caps, I just use tested good reliable salvaged caps before deciding on whether to do a proper job on the whole board.

    Neo.
    Last edited by Neo2_000; 06-03-2005, 05:00 AM.
    Tags: None
    • willawake
      Super Modulator
      • Nov 2003
      • 8457
      • Greece
      #2
      Re: Let your Mobo warmup before testing

      good info

      how about some pics of all these boards?
      capacitor lab yachtmati techmati

        Comment

        • Neo2_000
          Senior Member
          • Apr 2005
          • 180
          #3
          Re: Let your Mobo warmup before testing

          Sorry, no camera.

          But if your interested, I am saving up the old crapcaps now and I can organise some macro pics in a while. Maybe we could start an album.

          A good one came into work recently - what almost looked like cigarette stubbs stood where the caps once were - the aluminium casings had blown clean off the caps and were rolling around loose in the bottom of the computer case!

          Don't imagine this was a case of badcaps though, so much as a radical power short.

          Neo.

            Comment

            • yanz
              Badcaps Veteran
              • Nov 2004
              • 910
              #4
              Re: Let your Mobo warmup before testing

              i got the same experience with some mobos i recapped. i've read somewhere that the caps, especially if they are unused longer than 6-12 months, should be reformed before used in a circuit. after that i always put those caps in a 5-12v for 30 minutes or more before use them.
              days are so short when you actually do something..

                Comment

                • synicalsoldier
                  New Member
                  • Jun 2005
                  • 5
                  #5
                  Re: Let your Mobo warmup before testing

                  "Have been seeing a few Elite P4S5A Mobos recently. G-Luxon caps falling over. Looks like a run of them will be failing soon. "

                  I have this same board and the G-Luxon caps seem to be leaning over all over the board, but I checked the bottom of the MotherBoard and its only because they were originally saudered onto the board on an angle.

                  -John

                    Comment

                    • willawake
                      Super Modulator
                      • Nov 2003
                      • 8457
                      • Greece
                      #6
                      Re: Let your Mobo warmup before testing

                      are you sure. G-Luxon are crap. do a search on the board and see peoples probs. have removed a lot of g-luxon myself after stability probs.
                      capacitor lab yachtmati techmati

                        Comment

                        Previous template Next

                        Related Topics

                        Collapse
                        • momaka
                          Seasonic B12 BC-550 – barely 2 years old and with BAD CAPS already!
                          by momaka
                          I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.

                          For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).

                          https://www.badcaps.net/filedata/fetch?id=3591771


                          https://www.badcaps.net/filedata/fetch?id=3591772

                          It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:

                          https://www.badcaps.net/filedata/fetch?id=359177...
                          03-12-2025, 03:42 PM
                        • ChaosLegionnaire
                          what i went through dealing with my mobo with dead onboard sound!
                          by ChaosLegionnaire
                          so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!! what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol!

                          i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing...
                          09-13-2022, 09:02 AM
                        • jrodefeld
                          Asus laptop won't boot (no power) - possible bad caps?
                          by jrodefeld
                          I would like to see if anyone could help me salvage a very expensive laptop that is no longer working.






                          The model:                           Asus Zenbook Pro Duo UX582L

                          I have used this laptop lightly since I purchased it new in 2022. I have always taken precautions to take care of it the best I could, and have never done anything that would risk causing damage to it or shorten it's life.

                          However, around six months ago, the laptop stopped working on battery power. It continued to work fine when plugged in, but as soon as power was disconnected,...
                          09-02-2024, 04:55 PM
                        • privato89
                          Nintendo Switch Oled HEG-001: Second-Stage Boot Failure
                          by privato89
                          Hello everyone,

                          I'm facing an issue with a HEG-001 motherboard that is unable to complete the Second-Stage Boot. I'd like to start directly with my conclusion, which is the decision to replace the MAX77621AEWI chip, and understand if it could be a correct evaluation.

                          Before I dive into the process that led me to this decision, I want to mention that I have a fully equipped lab where I can perform any kind of tests.

                          Let's begin:

                          Following some guides online, I tried to understand how the Boot phase of the Nintendo Switch works, and what are the...
                          03-26-2024, 06:37 AM
                        • Paxman_Swede
                          Identifying caps on an old Zoom 9000
                          by Paxman_Swede
                          Hello!

                          I have two projects on my work bench. One is a friends dead JBL Xtreme speaker with a blown voltage regulator and corresponding bulged and shorted cap. That cap has clear markings so I know what replacement I need for it.

                          The other project however is a whole different deal. It's a Zoom 9000 guitar effect from the 90th that has developed a devil hound howl when there is no input from the guitar. I'm guessing caps problem. So, since I don't really use this effect anymore I thought it would be a perfect project to learn on.

                          I have studied the board and...
                          01-14-2025, 09:51 AM
                        • Loading...
                        • No more items.
                        Working...