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Hi
I have this board for repair.
I checked power rails and:
only PPVCORE_S0_AXG_R this is 0V
ALL_SYS_PWRGD present
Still dead, fan spinning, and made 3 beep only.
I stuck with that.
Ok, 1.5V present
I see some components are cleaned after liquid.
I forgot about one thing.
I replace u7400 and its starts but stop working after 5 minutes.
I thought that if CPUIMVP_AXG_PGOOD from U7400 is 0, and i change u7400
You wrote that AXG is not present is normal, please tell me when i should get it?
I have good working board for test for now. I put it to test other parts in this computer and now have same problem - 3 beeps WTF?
Is it possible that fault caused by display?
I don't know what you did.... 3 Beeps is something with the RAM. ESD damage, slipped screw driver, corrosion, bad luck. I just know that 3 beep boards when L7330 has 1.5V are a nightmare.