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  • DynaxSC
    Extreme High Current & Low Voltage Short Killer ??
    by DynaxSC
    Hi Folks

    I'm looking for a extreme high current short killer solution for a reasonable cost.

    I have an LGA1700 motherboard (ASUS PRIME Z790-P WiFi) where I exchanged the LGA socket already 3 times, and every time after the socket exchange I get a short of power supply lines VCORE (V variable) and VCCIN_AUX (1.8V).
    After taking off the socket, the shorts dissappear again.
    The soldermask on the socket is already partially demaged from the heat, so I have reconstructed the soldermask by manually painting the missing soldermask parts with a very small top of a...
    10-15-2024, 10:13 AM
  • Stephen
    MacBook Pro 14" A2442 Short on PPBUS_AON but no short present when injecting voltage!
    by Stephen
    I check PPBUS_AON and there is a short present on the line, the computer shows a short when testing for short to ground, so when I inject voltage into the line, I get 0AMPS so no short is showing up. I have replaced a blown cap on this board that exploded and tested for the short and it is now removed. Any suggestions? I tested voltage at the line when the fuses are connected and I am getting 1.2 Volts at the line.
    02-06-2025, 12:03 PM
  • Victor Moreira Silva
    Acer Nitro 5 LA-L181p power LED turns on by 5 secs (Short on PCH rail?)
    by Victor Moreira Silva
    Hello everyone,

    I'm trying to repair my old Acer Nitro 5 (AN517-54-55T5). I've already bought a new laptop, so this is more of a learning project. For the experience, with no high expectations of success.

    Well, my decice specs are the following:

    Model: Acer Nitro 5 AN517-54-55T5
    CPU: Intel Core i5-11400H
    GPU: NVIDIA GeForce GTX 1650
    Motherboard: GH51G LA-L181P Rev:1c

    The symptom:
    When pressing the power button, the power LED lights up for about 5 seconds and then turns off. Initially, the issue was intermittent: sometimes...
    05-26-2025, 10:49 AM
  • aaronkatrini
    Help me find the short circuit on this WORKING Nvidia GTX1650
    by aaronkatrini
    Hi all,

    Recently picked up this GTX1650 at a local flea market for a low price and wanted to use it on my secondary PC. I first tested the card and saw the fan spin for a split second and then nothing. Immediately I thought of a short circuit. Disassembled and found a shorted SMD capacitor, injected voltage into it (1V/4A) and two Mosfets got hot immediately (QN3103 & QN3107). Desoldered these Mosfets and the card turned back to life.

    Bought replacements from Aliexpress and replaced them afterwards. Tried the card but still the saw the fan spin for a split second...
    04-18-2024, 03:15 PM
  • Geeker007
    9th Gen Dell Optiplex Micro PC motherboard repair: Short Circuit?
    by Geeker007
    Hi All, I have a 9th Gen Dell Optiplex micro PC motherboard which doesn't power on. When I connect the motherboard with power adapter, it goes into safe mode and turns off. So from info I have gathered online, it looks like there is a short circuit on the motherboard. So can you guys help me with figuring out the issue?

    I am new to electronics repair, so my queries could be naive but I am ready to learn.

    So I have a multimeter and a solder with me. But I can try to get a variable voltage power supply with a thermal camera as well. From what I seen online, best way is...
    01-28-2025, 03:31 PM
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