PC 677B - How to clear bios?

 Hi any one know how to clear bios

kietnt81

Dear all

I face with a strange case and cannot explain myself

I had a touch panel PC 677B , model: 6AV6 875 - 1AA10-1AC0 and it got trouble with the touch function, so that, I replace the new one. as replacement, I had to remove 2 PCI cards (CP 1613) and installed them in new PC.

But when I took the OLD PC to workshop and Power ON, It can not boot. I connected the external monitor and it also can't show anything (No boot, no boot text). It might not pass POST testing, I think so.

Anyone have experience to bring it back ?

Does the PC work in case the CMOS battery failed ?

Thanks

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Split from Touch panel PC 677B cannot boot.

Maybe removing the backup battery for more than about 30 seconds may help?

See SIMATIC Panel PC 677B Operating Instructions, chapter 12.7.8 at https://support.industry.siemens.com/cs/ww/en/view/34072142.

regards,
xnor