Recapping K7S41GX

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Half-Saint
    Badcaps Veteran
    • Jan 2010
    • 213
    • Slovenia

    #1

    Recapping K7S41GX

    I recapped an ASRock K7S41GX today. Replaced all caps but the board still won't boot. It turns on alright and I got it to beep 'missing video card' once and also 'missing or bad RAM' once but the end result is always the same. Black screen, spinning fans, no workie...

    Tried clearing CMOS, tried booting with every possible combination I know, no luck. Any other ideas?

    SainT
  • bigbeark
    Badcaps Veteran
    • Jan 2010
    • 661
    • Canada

    #2
    Re: Recapping K7S41GX

    Check the voltage of the BIOS battery. I note this is a K7 board. I have had SOYO and Gigabyte Socket A boards refuse to boot because the Bios Battery was weak.

    Comment

    • Scenic
      o.O
      • Sep 2007
      • 2642
      • Germany

      #3
      Re: Recapping K7S41GX

      K7S41GX's tend to corrupt their BIOS..
      hot-flash the BIOS chip on another board, put the EEPROM back into the K7S41GX and it should be fine..

      Comment

      • kaniki
        Badcaps Veteran
        • Dec 2009
        • 514

        #4
        Re: Recapping K7S41GX

        also, check to make sure that you got all the flux cleaned up good under the caps, if there is flux under them, then it can cause a short and cause it to not read the hardware properly. also double check your solder joints and as what was previously started, maybe try resetting the bios to factory..

        Comment

        • Half-Saint
          Badcaps Veteran
          • Jan 2010
          • 213
          • Slovenia

          #5
          Re: Recapping K7S41GX

          BIOS battery reads 3.1V so it should be fine. There is no flux residue, I thoroughly cleaned the solder joints with isopropyl alcohol.

          Recently bought a BIOS flash programmer, this is probably my best chance to test it

          Thanks for the tips!

          Comment

          Related Topics

          Collapse

          • ugamazing
            820-02020 PPBUS_AON missing
            by ugamazing
            Board had no history of liquid; unsure of drop history, but no signs of damage of any kind worth noting.

            Charger sitting at 5v/0a. PPBUS is at 1.9v-0.9v steady cycle (peaks, drains, loops). Confirmed CHGR_EN_MVR is missing, but DCIN was reaching ISL just fine, so replaced ISL--no change at all. Confirmed pp3v8_aon is also missing--and being unsure *exactly* which signal appears first (or if they are simultaneous), I inspected PMU/U8100 area and found no shorts, but also found PP3V8_AON_MPMU_ISNS_VIN missing (not shorted). Replaced U8100 just in case (have had them fail in weird ways),...
            02-05-2025, 04:21 PM
          • jpreza
            Apple NVIDIA AGP GeForce 6800 GT Dual Link DVI+DVI outputs 603-6338 missing caps!
            by jpreza
            Hi everyone,

            I recently acquired this card from a seller who was selling a PowerMac G5 for parts. He mentioned that the video card was probably broken too.

            Upon closer inspection, I can tell the reason why it won't work: it's missing a bunch of CAPS! (it's also missing an inductor - 1.0uH).

            It's a nice card as it's one of the few AGP cards that will support 2560 x 1600 resolution on a PowerMac G5 using a 30" Cinema Display.

            Looking at the card, it appears to be missing the following:

            1x 1.0uH inductor - orange square
            2x...
            11-01-2024, 10:54 PM
          • gurj1979
            Asus Zenbook UX431DA / UM431D - Ryzen - missing PWM Fan Signal.
            by gurj1979
            Hey guys.

            Need help with this one.
            Fan not spinning due to missing PWN Fan signal.
            Also 5 seconds from powering up it freezes, unless in BIOS.
            But as soon as Windows starts to load, it will freeze.
            CPU is COLD / Room temp when it freezes.

            I've replaced the CPU, same problem.
            Replaced SIO/KBC IT8987e and reprogrammed - same problem.
            Replaced fan - same problem.
            Replaced flex cable from board to daughterboard (which has fan connector on it) - same problem.
            Checked the Thermal sensors around CPU and Board to the SIO/KBC and...
            08-19-2024, 05:22 PM
          • salopian
            Macbook Pro Retina 13” 820-3476-A (A1502) - missing PM_SLP_S4_L
            by salopian
            Hello. I would need some advice please.

            My son's MBP suddenly stopped working and is now only getting the green-then-orange light on Magsafe and no fan spin.
            He brought the MBP into the house (22 deg C) from a very cold conservatory (-3 deg C) and turned it on straight away. The Mac suddenly died a few minutes later.

            I examined the logic board and couldn't find any signs of water damage, corrosion, blown up components etc. Nothing was ever spilt on it, and the logic board looks immaculate.

            I have already replaced the logic board with another...
            02-27-2021, 07:30 AM
          • reessi
            HP - CE Series - DAG7ALMB8C0 REV.C - MODEL - G7AL-2G - Missing MAINON & SUSON - Turns on power LED & Charges
            by reessi
            Hello,

            I have re-soldered the loose pins on the RAM slot which is a common fault on these models..

            It charges and turns on the power LED but is missing several voltages like RAM and CPU do not come up which I believe is due to MAINON & SUSON being missing to turn these supplies on..

            What I am un-sure of is what is the ITC chip waiting for to send out these signals, what are the requirements?
            I have checked these lines in diode mode and they seam normal -> 600.

            I have checked to see if they come on for even a fraction of a second...
            07-15-2025, 09:14 AM
          • Loading...
          • No more items.
          Working...