HP zBook 15 G3 - 5 blinks - System board error

[zmeutz]

Hi,

Does anyone know or had this problem?
I have an HP zBook 15 G3, when I power on fan spin fast and caps/num blinks 5 times ...

Board seems to be clean, no water contact, nobody touch it ...

In HP manual says that 5 blinks means 'System board error' can be from bios?

Thanks!
Stefan

[caspian]

Re: HP zBook 15 G3 - 5 blinks - System board error

It can be anything on the mainboard including Bios. you have to test the mainboard to figure it out. are all the power rails present?

[zmeutz]

Re: HP zBook 15 G3 - 5 blinks - System board error

It can be anything on the mainboard including Bios. you have to test the mainboard to figure it out. are all the power rails present?

All rails I saw them present
Tried to write bios and ec, same thing…
It is annoying because is a general error, System board error and doesn't point you to a right direction…

I'm the first one that I opened it inside and the board was cleaned, no water or anything else…

[caspian]

Re: HP zBook 15 G3 - 5 blinks - System board error

have you tried another RAM stick?
It may indicate a GPU Error. just a possibility among many.
how much do the CPU and the GPU get hot?

[zmeutz]

Re: HP zBook 15 G3 - 5 blinks - System board error

have you tried another RAM stick?
It may indicate a GPU Error. just a possibility among many.
how much do the CPU and the GPU get hot?

Tested with other RAM same thing…
Should it work without GPU?