4/8/2023 0 Comments Hexcmp2 2 34 serial number![]() My board uses a 25LB128, which is a 128-Mbit (16MBytes) serial flash. When you think you found it, read its identification number and look it up to confirm. I’m using a cheap CH431 based USB programmer which supports plenty of the 24 and 25-series EEPROMs:įirst step is to identify the BIOS chip on the board – on current generation boards it’s usually a small 8-pin SOIC-8 chip located somewhere around the CMOS battery. ![]() The in-circuit programming clamp accessory will be also required to connect to the BIOS chip without de-soldering it from the board. When there’s no older gen CPU around to use or you’re simply in the mood for some hardware tinkering, you can get your elbows dirty (figuratively, since the board is brand new and not dusty yet) using an EEPROM programmer ( eBay / AliExpress). This, unfortunately, requires the older gen CPU to be around and available for the procedure. ![]() This can normally be done by using a recognized older gen CPU to power on the board and access the built-in BIOS updater function. As we all know AMD motherboards need BIOS updates to support new generations of Ryzen CPUs. ![]()
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