Fujitsu nh532 wont start unless cmos battery removed

[Bisketti]

Hi any help is appreciated. I have tried a few different bios files. The power buttons works fine. Only if bios battery is removed it will boot up and can be switched off with power button but will not switch on again via button.

I cannot find a schematic or boardview.

on KBC
ac_present is 0v
Pm_pwrbtn 3v
PM_RSMRST 3v
ec_rst 3v
ac_in_oc 3v
vsuson 3v

[ktmmotocross]

Re: Fujitsu nh532 wint start unless cmos battery removed

is battery ok? voltage more than 2.5V

[Bisketti]

Re: Fujitsu nh532 wint start unless cmos battery removed

yeah tried with new battery same. Im trying to find out why ac_present is 0v from kbc with or without cmos battery.

[ktmmotocross]

Re: Fujitsu nh532 wint start unless cmos battery removed

i think ac_present is driven by ACOK from ic like BQ

[Bisketti]

Re: Fujitsu nh532 wint start unless cmos battery removed

Thanks for your help but had to return unit to customer.