How to replace bios battery at old Dell laptop Inspiron Series CMOS checksum bad (Error 0251 & 0271)

You got an error 0271: Check date and time settings and also 0251: System CMOS checksum bad" - Default configuration used Press F1 to resume, F2 to Setup ??

I am pretty sure that your bios battery is empty - normally after 5 to 10 years.
In this quick video i will show you a old 2010 Dell Inspirion 1564 (7282) Laptop (it looks brand new with no scratches^^) with a i3 with an empty CR2032 bios battery. I also show you how to you go to bios (press F2 key) and set time and date and save settings. Its similar to other Dell Laptops from 2010/2011 and other years.....

In the video i said maybe you can upgrade the ram up to 16GB. Thats wrong.
The maximum memory(RAM ) that is supported on this exact system is 8GB with DDR3 1066 MHz. Maybe you can try it also with 1333 or 1600 RAM and it runs.

I show you:
How to replace the bios battery CR2032 (also known as SB-T 51 or D2032 with diameter 20mm, 3.2mm high and 3V )
Also quick show you:
- how to find the sata hdd 2,5 to replace with a ssd
- how to find the DDR3 RAM DDR3 1066 (maximum 8GB with 2 x 4GB)

German:
In diesem kurzen Video zeige ich euch wie Ihr bei einem alten Dell Laptop von 2010 , in diesem Falle ein Inspiron 1564 Laptop mit i3 Prozessor die Bios Batterie austauscht. Ebenso zeige ich euch wo sich die Festplatte befindet um Sie gegen eine SSD (Solid State Disc) auszutauschen und wie Ihr an den Arbeitsspeicher (maximum 8GB DDR3 1066 SO) kommt.