When all voltages are present on a motherboard and all are stable with very little ripple what can cause the board to not boot? It behaves as if the processor is not installed and I know that the ZIF is clean and the pins are intact completely. Ive replaced the PCH (Intel-based board), replaced ZIF, every controller type component (VCORE, SIO, TPM, etc) and even reflowed the board but no dice. I would imagine there's a reason like a bad resistor or timing issue, but how do I narrow it down even further? With respect to the Intel architecture preferably for standardization's sake
-
-
Re: General Motherboard Repair Diagnostics Inquiry
There are many reasons why it fail to output.
Firstly by doing too much you might have caused other issue.
Firstly if u think all voltage appear, overall PCIe reset at PCIe slot will have 3.3v.
If it had PCIe reset then does the diagnostic code run ?
Etc too many things... -
Re: General Motherboard Repair Diagnostics Inquiry
Hello, i'm new here. I would like to ask if there is some sort of list of the most common pc motherboards and their capacitor list. I use to recap them at home.Comment
-
Hello everyone,
Iām working on a Lenovo IdeaPad XiaoXin Chao7000-15ARR (Ryzen platform) and I need some help with BIOS reconstruction.
Unfortunately I only have the bare motherboard (no original chassis, no sticker, no working system).
The laptop came with black screen.
What I have:
- Original SPI dump read from the board (W25Q64DW 1.8V, 8MB)
- Official Lenovo BIOS update (.CAP file)
- Photos of the motherboard (front and back)
- Board powers on, but with original dump it stays black screen
What I tested:
... -
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 š,
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 ā¬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.
-
Hello,
i hope i am at the right spot with my post and someone can help me.
I replaced the motherboad on my HP Spectre x360 15-eb1079ng with one i bought on ebay from a seller in china.
The old motherboard just died out of nowhere so i does not have the old informations of the old motherboard.
After i replaced the motherboard i noticed that the key with the <>| on my german keyboard does not work like it used to but it ist now a crtl-right key.
I found out, that i have to configure the keyboard layout in the BIOS and i also found that with the BiosConfigUtility...03-09-2026, 11:02 AM -
This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
Comment