something is wrong today

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • ktmmotocross
    Boardkiller
    • Feb 2014
    • 3577
    • slovakia
    #1

    something is wrong today

    something is wrong today
    i have asus F5z that fires up only after heatedup so do a reflow and about 205c i hear puf and ic goes to short.
    next i wanna reflow ati GPU SB820 that not vanna showing picture so i heatid it to 195c to be sure it dont crack but after reflow it have one shorted power rail.

    it is so low temp that i canot understand why this happend. any help?
    Tags: None
    • Th3_uN1Qu3
      Believe in
      • Jul 2010
      • 6031
      • Romania
      #2
      Re: something is wrong today

      Moisture trapped inside the chips. Try longer preheating times, 15-20 minutes at 120-150C.
      Originally posted by PeteS in CA
      Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
      A working TV? How boring!

        Comment

        • ktmmotocross
          Boardkiller
          • Feb 2014
          • 3577
          • slovakia
          #3
          Re: something is wrong today

          but will be board ok after that long heated time? aint be bending?

            Comment

            • Th3_uN1Qu3
              Believe in
              • Jul 2010
              • 6031
              • Romania
              #4
              Re: something is wrong today

              If it's set nice and straight on the station, it will not bend.
              Originally posted by PeteS in CA
              Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
              A working TV? How boring!

                Comment

                Previous template Next

                Related Topics

                Collapse
                • tony359
                  Reflow equipment
                  by tony359
                  Hello all,

                  I am experimenting a bit with reflowing larger components - ideally I'd like to reflow a PS4 APU or a GPU for example.

                  I know it's impossible to reflow such large components with just hot air so I bought a pre-heating plate, T-8280 classic Chinese machine, which seems to be working fine besides it's a little slow, which shouldn't be a big deal.

                  Now, my hot air station is a Aoyue 852A++ and I feel it's a bit weak when used with larger nozzle. I tried reflowing a laptop chipset using one of those large, rectangular, nozzles and I failed miserably,...
                  12-25-2021, 01:29 PM
                • Mr_Nada
                  Concerns before attempting a Reflow of Laptop's GPU
                  by Mr_Nada
                  I saw some posts at one point talking about doing a reflow but I couldn't find them again so I thought that I would post this here.

                  I plan on reflowing the GPU of this old HP DV2500 laptop but I want to go over what I have and the steps I have to take to guarantee it will come out fine.

                  I have a Yihua 8786D 2in1 Rework station, flux (just some paste that I got from an old Radioshack kit), a couple rolls of Kapton tape and a $15 Thermometer +probe (a TM902C from EMR shielding Solutions if its important).
                  • The paper that came with the thermometer states that the probe
                  ...
                  10-10-2024, 02:53 AM
                • groomit
                  Google Pixel 5 - Proximity Sensor Issues - Reflow/Replacement procedure tipps wanted
                  by groomit
                  Hi,
                  I just replaced the battery on a Google Pixel 5.
                  After that the proximity sensor isn't functioning properly any more. It is constantly activated. So when playing a voice message on Whatsapp, the Screen instantly turns off.
                  Checking with a sensor app I can verify weird behavior of the sensor. It is triggered when nothing is near and sometimes works correctly when squeezing the phone next to the sensor hole.
                  The rubber seal is on again (as mentioned in various suggestions in other forums).

                  This smells like a cold or broken solder joint. So I'd like to reflow...
                  06-11-2025, 02:21 AM
                • Vincent Kahle
                  Winbond 25Q16JWNIG – Asus ROG Strix Scar 18 G814JZ bricked after wrong flash – Need help
                  by Vincent Kahle
                  Hi everyone,

                  I hope someone can help me.
                  I have an Asus ROG Strix Scar 18 (G814JZ) laptop with a Winbond 25Q16JWNIG chip on the motherboard.

                  Unfortunately, I flashed the wrong file (BIOS/EC/other region – I'm honestly not sure anymore), and now the laptop is completely dead: no display, no fan spin, no reaction at all.

                  I have a CH341A programmer and I'm able to read and write to the chip. However, I'm not sure which software is best (AsProgrammer, NeoProgrammer, etc.) or if there's anything specific I should watch out for.
                  A valid BIOS/EC backup...
                  06-05-2025, 09:27 PM
                • BMCappelletti
                  Asus Chromebox CN62 - wrong chip put on BIOS reader
                  by BMCappelletti
                  Long story short:
                  - dad converted Asus Chromebox CN62 into Windows compatible, with mrchromebox BIOS, years and years ago
                  - gave the computer to his son a couple years later
                  - son now decided to revert it to Chrome OS, to sell it as original (re-writing BIOS with the backup one created by his dad)
                  - too lazy to remove the board from the case, thought a voltage regulator was the BIOS chip (you know... it has 8 legs)
                  (seems like the story was not that short)

                  He used alligator clips to read the chip. No luck reading it. Removed chip and placed on a SOC-8...
                  01-08-2025, 07:27 PM
                • Loading...
                • No more items.
                Working...