On 25/03/2019 21:59, John Robertson wrote:
On 2019/03/25 10:28 a.m., David Farber wrote:
This Dell Inspiron N5110, which has Windows 7 Home Premium installed,


Something is wrong with the on-board RTC - Real Time Clock.

You need to identify that chip or module and first see if its crystal is
damaged.

If the device is a Dallas TimeKeeper then you can simply plug in another
one, if soldered into the board then you have to decide how much it is
worth to fix...

John :-#)#


Schematic available here

[1]
http://kythuatphancung.vn/download/d...chematics.html

The RTC is part of the 'Cougar Point Platform Controller Hub'
[2] https://www.mouser.com/pdfdocs/6chip...tdatasheet.pdf

Clearing CMOS is apparently done by a jumper (G2101) RTCRST# (page 21 of
the schematic [1]. Power off then momentary short (p.163 of [2])

--
Adrian C