Hello! everyone! I would like to know the value of the chip resistor at the location in the image. thank you.
-
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... -
Hello,
I purchased a laptop that the previous user had tried to remove and replace a BIOS chip using a soldering iron not knowing that there is a ground pad under the 25R256JWEQ chip. In that process he damaged the BIOS chip and 3 of the resistors near the IO3, CLK, and IO0 pins. I have programmed a spare 25R256JWEQ chip using a CH341A programmer but not sure what values those resistors should be. If anyone has a boardview of this area and can provide those values that would be very useful for me.
Attached is the photo.
Thank you! -
Hi
I have a very strange issue with the BIOS SPI chip of an ASRock B650M PRO RS motherboard.
The SPI chip is an Winbond 25Q256JWEQ model (1V8).
The motherbaord doas not POST - it lits only CPU and DRAM EZ Debug Leds, and stays that way forever.
The Flashback function of the motherbaord is also not working, despite all instructions followed correctly - I'm 100% sure of this.
I have then desoldered the chip, backupped the contents, and tried to earease the chip in order to program stock image, but the chip is locked by status registers SREG2 (TB) and SREG6... -
This specification for the ASUS ROG G20CB-DH71-GTX1070 can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the ROG G20CB-DH71-GTX1070 boardview and ROG G20CB-DH71-GTX1070 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet,...09-12-2024, 03:30 PM
-
Asus Vivobook 15 (board X513ea R2.0) gone dead when user plugged an iPhone cable into the USB-C port during boot. Now there's no LED light, no power at all. I checked all MOSFETs and capacitors, no shorts found. The board only has 3.3V and 5V present, no other voltages.
I injected 3.3V into the EC chip power rail (ITE IT5125VG 128), and it draws 80mA, while the 3.3V LDO chip RT8249C has a max output of 100mA. I checked the boardview and found there are only two chips on this 3.3V rail, EC and Realtek audio chip. So I think EC could be the problem.
I found the EC chip...09-14-2024, 02:09 AM
Comment