Need help, I took out the motherboard, because nothing is spinning, no fan, no screen, no usb. I'm trying to fix it... I've watched several tutorials but I'm wondering how to start checking. This is my daughter-in-law's laptop, she said, if you can, great, if not, scrap it. So I'll take my chance. I ask for help before I pose an unresolved problem. Thank you very much for the advice. Oupss, I forget, when I push the start button del is lighted about 1 sec. and shut off. I can do this again and no change.
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Hello,
What is the background of the laptop ? How did it fail?
Best start is to check for short to ground on every coil of the mainboard. -
My daughter-in-law took it to the store for repair because the computer shut down while she was doing some work. The repairman told him it was a problem with the battery and fixed it. Shortly after (a few weeks) the problem came back while she was at the computer. Back at the workshop, after some checking he thinks it's the motherboard, but my daughter-in-law doesn't trust that he was telling the truth. She asked me if I wanted to try to fix it in my electronics class. 1 Caps near connector 2Mohms - 3 caps near cpu 14, 7, 7 ohms- 2 caps near ram .7 and 600 ohms- Last cap at the other end of card 630 ohm. Thanks a lot to help me.Comment
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Oops, I wrote caps but it's coil. My English is a bit basic, sorry. All the small capacitors to the left of the picture rings with the gnd. This is also the coil that has .7 ohms of resistance.Comment
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Reoops. PictureAttached FilesComment
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Hello,
I have a Asus ROG Strix Scar 15 (G533QM) that had a dead motherboard (Graphics card dead) and after trying to fix the motherboard with no success, I bit the bullet on a sale for a new motherboard. I ordered a motherboard for the 15 inch model which is the one that I have, and when the motherboard arrived it wasn't for a little while that I saw it was from the 17 inch model.
My question is, can I update the Bios on this G733 motherboard to a G533 Bios.
The reason for wanting to do this is that the keyboard isn't working as it should, and I think this... -
Hi everyone 😀,
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 €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... -
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…... -
Hi, I have some 32 bits computer motherboards that need repair, as they fail to
power on.
Here are some examples :
(N.B. "capacitors" indicated here are electrolytic capacitors located in the onboard
switching supply area).
(N.B. #2 : I could not find a 3300 microF aluminum-polymer with a higher voltage
than 6.3 V.)
1 - Motherboard #1 : this is an Asrock K7VT2 (socket A) that still works well. To put it on test
I replaced capacitors with aluminum-polymer.
3300 microF/6.3 V. x 4 replaced by 3300 microF/6.3 V. (KYOCERA...
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