CMOS battery in SP4
can you remove or unplug the CMOS battery in the SP4? Or is this not possible? thanks
This machine doesn’t rely on a CMOS battery judging from the teardown. These typically rely on a small reserve capacitor for memory retention with a dedicated line from the battery to power the capacitor to save the CMOS RAM contents. You will need to replace the primary battery or board capacitor.
That being said, the capacitor is usually fine and it’s typically due to a older battery.
This is possible this article also included a guide.
Your problem isn't about passwords but you have the same goal as the above mentioned article goal of resetting the BIOS if I am not wrong.
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