HP LA-K321P short on the +5VALWP line.
I injected 5V and UA1 (ALC3287) is very hot, after removing it +5VALWP = 5V but the resistance on this line is only 80ohm. If I inject 5V/5A the consumption is only 10mA (80 ohm only on +5valw see picture) but if I try to turn on the board the led turns on for a few seconds and then turns off. I don't know if the card doesn't turn on for 80 ohms or if there is a problem on another component. On the diagram on page 5 looking at the pwr sequence it seems to me that many voltages should be present before the power button is pressed (PBTN_OUT#) is this correct or am I wrong? I thought of a problem with the PCH even if it usually concerns the 3Valw line. Naturally I tried to reprogram the two bios without result.
MOD Edit: Link to schematic -> https://www.badcaps.net/forum/showthread.php?t=111570
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I injected 5V and UA1 (ALC3287) is very hot, after removing it +5VALWP = 5V but the resistance on this line is only 80ohm. If I inject 5V/5A the consumption is only 10mA (80 ohm only on +5valw see picture) but if I try to turn on the board the led turns on for a few seconds and then turns off. I don't know if the card doesn't turn on for 80 ohms or if there is a problem on another component. On the diagram on page 5 looking at the pwr sequence it seems to me that many voltages should be present before the power button is pressed (PBTN_OUT#) is this correct or am I wrong? I thought of a problem with the PCH even if it usually concerns the 3Valw line. Naturally I tried to reprogram the two bios without result.
MOD Edit: Link to schematic -> https://www.badcaps.net/forum/showthread.php?t=111570
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