help finding the CMOS battery in a Sony Vaio VGN-FS550 Laptop

jallenclark · 02-26-2007, 12:30 PM

The battery is dead and I poked around quickly and could not locate the CMOS battery, anyone know where it located in the laptop? Thanks

**TheMatt** · 02-26-2007, 06:27 PM

Hi,

How do you know that the battery is dead? Do you get a message?

Generally, CMOS battery's on laptops will be in two places: Either under the keyboard on top of the motherboard, or on the bottom of the motherboard behind the bottom panel of the laptop. Look in those two places.

Rebellion88 · 02-26-2007, 06:29 PM

The Cmos batteries have a fairly long life, is there a problem or a notification regarding the battery as Matt suggested?

jallenclark · 02-26-2007, 07:45 PM

I ran some tests online when my clock keep resetting. The results told me to replace the CMOS, I also called Sony and after they walked me through the same things they told me send it to get it placed by them cause they wanna charge me 200 to replace a battery.

I took the keyboard off and it was not there. I also took every back panel off and also did not find it there.

I cannot find a service manual for my model anywhere online.

**TheMatt** · 02-26-2007, 08:16 PM

Did you remove the whole back cover? Usually it is not under a removable section of the bottom. On My Aspire 3000, to access the CMOS battery, you have to remove the hard disk, and after doing that, remove the entire bottom cover of the laptop. You might have to do something to that effect. Removing the whole bottom cover shouldn't be too difficult unless there are hidden screws. If you post a picture of the bottom from a digital camera and upload it, I could be of more assistance.

**PanamaGal** · 02-26-2007, 08:27 PM

Most laptops that I have taken apart did not have the CMOS battery in a very convenient place. If I wouldn't have had some nearly torn down to pieces, I would not have found it.

jallenclark · 02-27-2007, 07:27 AM

You are right, I didn't take the entire back panel off just the quick small ones that access the RAM and the hard drive.

I will go ahead and take the entire panel off. I was hoping there was an easier way. I have an old mac g3 that had CMOS battery right under the keyboard so it was very easy to get to, I was hoping this would be similar.

02-26-2007, 12:30 PM	#1 (permalink)
jallenclark Registered User Join Date: Feb 2007 Posts: 3 OS: XP	help finding the CMOS battery in a Sony Vaio VGN-FS550 Laptop The battery is dead and I poked around quickly and could not locate the CMOS battery, anyone know where it located in the laptop? Thanks

02-26-2007, 06:27 PM	#2 (permalink)
TheMatt TSF Enthusiast Join Date: May 2006 Location: Boston Posts: 13,702 OS: Win 3.1, 98, NT 4.0, XP Debian 4.0, Kubuntu 6.06 My System Blog Entries: 3	Hi, How do you know that the battery is dead? Do you get a message? Generally, CMOS battery's on laptops will be in two places: Either under the keyboard on top of the motherboard, or on the bottom of the motherboard behind the bottom panel of the laptop. Look in those two places. __________________ - Matt M - KB1OSC - Folding@Home 85015 [url="http://www.techsupportforum.com/hardware-support/"] If TSF has helped you, please consider donating. If I have stopped responding to a thread, feel free to send me a PM with a link to the thread. It is advisable to subscribe to threads so you will receive updates when replies are posted. You can subscribe to threads from the "Thread Tools" Menu. »Memtest86 »Prime95 »UBCD »SpeedFan »NHC Personal »Everest »Sandra »PC Wizard »RivaTuner »ATi Tool Click here for Useful Articles and Guides

02-26-2007, 06:29 PM	#3 (permalink)
Rebellion88 Registered User Join Date: Dec 2006 Location: London, UK Posts: 441 OS: Windows Vista Home Premium 32bit My System	The Cmos batteries have a fairly long life, is there a problem or a notification regarding the battery as Matt suggested? __________________ - Dean National Diploma Software Development National Diploma Hardware Route

02-26-2007, 08:16 PM	#5 (permalink)
TheMatt TSF Enthusiast Join Date: May 2006 Location: Boston Posts: 13,702 OS: Win 3.1, 98, NT 4.0, XP Debian 4.0, Kubuntu 6.06 My System Blog Entries: 3	Did you remove the whole back cover? Usually it is not under a removable section of the bottom. On My Aspire 3000, to access the CMOS battery, you have to remove the hard disk, and after doing that, remove the entire bottom cover of the laptop. You might have to do something to that effect. Removing the whole bottom cover shouldn't be too difficult unless there are hidden screws. If you post a picture of the bottom from a digital camera and upload it, I could be of more assistance. __________________ - Matt M - KB1OSC - Folding@Home 85015 [url="http://www.techsupportforum.com/hardware-support/"] If TSF has helped you, please consider donating. If I have stopped responding to a thread, feel free to send me a PM with a link to the thread. It is advisable to subscribe to threads so you will receive updates when replies are posted. You can subscribe to threads from the "Thread Tools" Menu. »Memtest86 »Prime95 »UBCD »SpeedFan »NHC Personal »Everest »Sandra »PC Wizard »RivaTuner »ATi Tool Click here for Useful Articles and Guides

02-26-2007, 08:27 PM	#6 (permalink)
PanamaGal Mentor Hardware Team Join Date: Jun 2006 Location: Panama Posts: 1,240 OS: WinXP Pro SP2; Windows Server 2003; Windows Vista Ultimate; Vista Business	Most laptops that I have taken apart did not have the CMOS battery in a very convenient place. If I wouldn't have had some nearly torn down to pieces, I would not have found it. __________________ It is hard to fail, but it is worse never to have tried to succeed.

02-26-2007, 07:45 PM	#4 (permalink)
jallenclark Registered User Join Date: Feb 2007 Posts: 3 OS: XP	I ran some tests online when my clock keep resetting. The results told me to replace the CMOS, I also called Sony and after they walked me through the same things they told me send it to get it placed by them cause they wanna charge me 200 to replace a battery. I took the keyboard off and it was not there. I also took every back panel off and also did not find it there. I cannot find a service manual for my model anywhere online.

02-27-2007, 07:27 AM	#7 (permalink)
jallenclark Registered User Join Date: Feb 2007 Posts: 3 OS: XP	You are right, I didn't take the entire back panel off just the quick small ones that access the RAM and the hard drive. I will go ahead and take the entire panel off. I was hoping there was an easier way. I have an old mac g3 that had CMOS battery right under the keyboard so it was very easy to get to, I was hoping this would be similar.