Undefined event code BIOS logs

Question

Hi,

Can somebody help diagnose my problems? There are few logs stored in bios and need to know what is this codes are. I don't want to replace any components before the proper diagnosis.

Undefined event code 0x0000045

Undefined event code 0x03808192

Undefined event code 0x0380818A

Undefined event code 0x0380819E

Undefined event code 0x0380819D

I had some problems before with the internal SK Hynix SC300 mSATA SSD (DP/N: 0VGXRN) also so I hope SSD replace will solved this problem.

Thanks

designflaw · Answer

@KBSLAT what did you find out about these?

I had similar codes (same first 3) with my E7450, started with 0x0380818A about a year ago. Then the On button couldn't reliably turn on. Then the battery couldn't charge.

I diagnosed it down to one of the output capacitors shorted in the switching power supply for charging the battery, and a PMOS FET that leaked to cause the gate voltage to not reliably turn on.

This laptop has got design problems. The caps were underated, for the battery voltage. A good EE would have derated those ceramic caps a great deal, due to the bias voltage derating the capacitance significantly. And that MOSFET looks cheap (vendor), and its gate bias circuit is a joke!

Now I am starting to see similar codes, a year after I replaced the shorted cap and the leaky MOSFET. I am beginning to think that my recent upgrading of 1TB Crucial MX500 SSD randomly restarting Win10 issue is actually this E7450 mother board power issue again.

Dell please hire some good EE's.

Odin_hutson · Answer

With the randomly restarting I would make sure you go to your bios and turn of c states. as your motherboard and stuff gets older electricity wont be delivered as well so when c states is kicked in if enabled it will shut off or restart your computer because of in efficient power delievery. This problem happens on both laptops and desktops

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Undefined event code BIOS logs

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