A Windows XP help forum. PCbanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » PCbanter forum » Microsoft Windows XP » Hardware and Windows XP
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Location of CMOS Battery in HP Pavilion N3390 Laptop

Thread Tools Display Modes
Old January 19th 13, 12:44 PM posted to microsoft.public.windowsxp.hardware
external usenet poster
Posts: 326
Default Location of CMOS Battery in HP Pavilion N3390 Laptop


Hi Paul,

It sure does look like that might be the CMOS battery on the bottom of the
mother board, near the AC adapter connector. Unfortunately, there is no
access from the bottom unless I use a dremel tool to cut an opening. I am
SHOCKED that HP would put a CMOS battery in a location that requires major
disassembly. I have replaced CMOS batteries on various laptops of mine over
the years, but never had to remove the mother board.

Do you know this image to be that of a HP Pavilion N3390?

Thanks again, John

Well, it's a sale site, and sale sites have been known to put the
wrong pictures up for a sale item.

About all you can do, is "correlate" what you're seeing in the pictures,
against the item in hand, and see if it's a match. That at least
adds some weight, but doesn't give a 100% assurance it is what it
says it is.



I am extremely grateful to you for that link to the image of the bottom
of the HP Pavilion N3390. It is a match!

I used my dremel tool and carefully cut a square opening at the position
I saw in the image. BY GOLLY, there is the CMOS battery!!!!

The battery is in a snap in holder (no wires). It is a rechargeable 3V
# ML1220. I removed the battery and sure enough, it is run down (.6V). Since
I don't use this laptop often, and the main battery is no good, this
rechargeable CMOS battery "ran down".

After about an hour, without any CMOS battery, I powered up the laptop.
This time when I press F1 or F2 after getting the time/date error message,
there is no password prompt. I can now use this laptop again.

I will get a new rechargeable ML1220 CMOS battery, then leave the
laptop plugged in (AC adapter) for several hours. I will put a plastic cover
over the opening.

Thank You Very Much, John


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

All times are GMT +1. The time now is 08:01 PM.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.
Copyright 2004-2023 PCbanter.
The comments are property of their posters.