Hallo,
I own a HP 350 G1 F7Y99EA, (delivered with BIOS version f13, not available via HP !!!)
Every time after power is disconnected (either from power supply to battery or just removing the battery) I get a CMOS checksum error (502) with reset. After the reset everything is working perfectly ok, I have to change date & time though, otherwise some software gets crazy.
I run win7 pro x64 and my system is in good shape, checked with the HP Support Assistant and HP Instant Support Professional Edition (online tool from HP). I have installed the Intel Rapid Storage Technology drivers and HP 3D Guard.
I also have a mSata boot SSD (Kingston mS200 120GB). The 750GB drive only for data (no OS on it).
Any ideas, suggestions?
Thank you in advance