I've tried all BIOSes available to download, most recently first release version 0301, using an i3-2100
For each try, after externally reprogramming its Winbond 25Q64BV (DIP8) with TL866IIplus
Always same outcome - after Save & Exit, board shuts down and doesn't restart
If I press onboard Power button, it'll start up then shut down again
After jumpering CMOS Clear, it'll start to UEFI settings then repeat same behaviour
It's had a new CR2032 fitted
Closer examination found a second flash IC, a soldered Pm25LD512 (SOP8 or SOIC8, whichever is smaller), just to left of SATA connectors block (25Q64BV is on right)
In these days of Management Engine and multi-MB firmware, something 64KB seemed too small to be relevant, but having run out of ideas, I desoldered it to see what would happen
After power on, board contemplates for a few seconds, flashes a couple of red LEDs, bleeps with a brief glimpse of Asus logo, messages "The data in the EC or EC flash might be corrupted", then shuts down
Dump of Pm25LD512 is attached - BIOSes tried are the *.ROMs downloaded from Asus
Could anyone advise/assist please
For each try, after externally reprogramming its Winbond 25Q64BV (DIP8) with TL866IIplus
Always same outcome - after Save & Exit, board shuts down and doesn't restart
If I press onboard Power button, it'll start up then shut down again
After jumpering CMOS Clear, it'll start to UEFI settings then repeat same behaviour
It's had a new CR2032 fitted
Closer examination found a second flash IC, a soldered Pm25LD512 (SOP8 or SOIC8, whichever is smaller), just to left of SATA connectors block (25Q64BV is on right)
In these days of Management Engine and multi-MB firmware, something 64KB seemed too small to be relevant, but having run out of ideas, I desoldered it to see what would happen
After power on, board contemplates for a few seconds, flashes a couple of red LEDs, bleeps with a brief glimpse of Asus logo, messages "The data in the EC or EC flash might be corrupted", then shuts down
Dump of Pm25LD512 is attached - BIOSes tried are the *.ROMs downloaded from Asus
Could anyone advise/assist please
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