Hi there,
Guys anyone here can help me. During troubleshoot the motherboard, my 1st and new psu unable to boot the motherboard. Even though i set the 20V, my old Compaq CQ42 motherboard had the led white light at charging port. When press on button, the led blinking to red and gone back to white state. But i change the oem hp compaq adapter which is i measure 19.45V. Using that can boot the motherboard and fan spinning. Then i reconnect psu and tried set the 19.45V, still blinking red. Anyone know what happen? Is it psu not compatible? All is check and voltage is there....

Hi,

I am trying to fix an Acer Aspire 5542. Upon turning it on, the fan starts to spin for a few seconds and then it stops. I hear no beeps from the speaker. I have no image both on the laptop screen and through VGA and HDMI connectors.

I measured voltages, and it seems all power supplies are OK. There are 5V, 3.3V (BIOS), 1.8V (RAM), and 1.1V (VCORE).

I tried to read the BIOS using a CH341A programmer, but it did not detect the chip. I took the BIOS chip away from the motherboard, and then the CH341A detected the chip, and I was able to read the code. However,...

Hi, last month i bought a broken pc that i tought i can fix for myself but it turned out to be time consuming. The pc turn on and shows no display and beeps 5 times and restarts again and again, i think it s the motherboard because i tested/replaced all the parts except the motherboard. The pc was used mostly for light gaming and i think it wasnt overclocked or something. I tried all the basic fixes(cleaning the ram slots, removing the cmos battery, reseat the GPU/CPU/RAM). I think the last thing to do is to replace or repair the mobo but i prefer to try to repair because i don t want to spent...

Going over the pictures attached. I have an open circuit between ground and 19V at charger port. I have 5V and 3.3V at their respective inductors. The other three inductors near the CPU measure 1.8V except PLG1 which measures 0V. When the battery is plugged in I get around 9V on pins 7 and 8 at PJP201 but I believe it should be closer to 12~13V. I have the motherboard fully removed and disconnected from peripherals. Please let me know if you need additional information/next steps guidance. Thanks!

Here's the link to the schematic: https://www.badcaps.net/forum/troubleshooting-har...

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...