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Hi everyone π,
I'm here today to ask for help with repairing the motherboard of a Lenovo Legion Y540 17IRH.
To give you some context, I'm passionate about computer repair so much so that I've invested in a lot of tools and started practicing on dead and old hardware. I've been learning how to solder and desolder components, mostly focusing on phone repairs.
Recently, I bought a broken Lenovo Legion Y540 17IRH for just β¬150, and there are two main reasons why I made this purchase:- I already own the exact same model, but its plastic chassis is badly damaged.
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Subject is a blank screen issue in HP Envy 17-3290NR 3D version laptop with motherboard Louis V1.1 6050A2489901 MB-A02. Production year is 2012. This one is a 2nd hand motherboard which I could use it for few months only. Suddenly no output from the internal display and also no signal from HDMI port then Windows out of order after few boots.
Caps lock working normally and no HP's caps-lock warning blinks. Making a hard reset and replacing the RAM sticks or using different slots didn't help.
Fans are spinning. Blindly could install windows11 and got the device manager... -
Hi, I have a couple of AM4 b350 motherboard to fix .... I try to see what I got without installing anything (no memory, no cpu) and give them just 5V standby .... and I have a coil getting warm on both board near memory (1,2v on one, 1,35 on the second one). Is this somehow normal? Because It looks very strange to me.
And can't identify anything else getting particularly hot who can be the sink for this current ...
TIAβ07-02-2024, 02:06 AM -
Here’s another motherboard that needed a full recap: an ASUS P5GC-MX.
This one was gifted to me some years ago by user Pentium 4, along with a few other goodies. It actually came in working order with no bulging or leaking caps. However, I noted there were United Chemicon KZG caps everywhere on the motherboard. The CPU VRM output (CPU V_core) was the only exception: it had only 2x KZG. The rest was 6x UCC TMV 4V 680 uF caps… which aren’t any good news either.
So here is what the motherboard looked like with its original caps:
CPU VRM area up close…... -
Working on an X560UD. Unit turns off whenever RAM is present. Tried multiple known good memory sticks, but still, unit shuts off after 3-5 secs. When RAM is removed, unit stays on, but of course, do not POST.
Happens on any o the two slots, 1.2V present.
Any clues?
Working...
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