Comments on: CMOS battery also know as RTC battery

By: Repair Man

Repair Man — Thu, 15 Dec 2011 19:08:56 +0000

@ Basel,

i have Toshiba sattelite A300 I forgot BIOS password how i can remove it

I don’t remember off the top of my head but most likely this laptop has two CMOS pads in the memory compartment. You can find them when both memory modules removed. You short those pads with a screwdriver and it should clear the BIOS password.
Removing the CMOS battery will not clear the password.

By: Basel

Basel — Wed, 14 Sep 2011 20:34:52 +0000

hi i have Toshiba sattelite A300 I forgot BIOS password how i can remove it

By: Kathy

Kathy — Wed, 07 Sep 2011 20:03:15 +0000

Just wondering if anybody knows the cmos battery needed for HP ZV5460US, SN CND592169H, SN OR471UA #ABA, Motherboard 370493-001, EHR66A1

By: navid

navid — Wed, 31 Aug 2011 14:13:45 +0000

Hi, I have a Toshiba Satellite L45-S7409.
What kind of CMOS battery do I need?
every time I turn on my laptop I have to press F1 key to continue and set time after login to windows.

By: Repair Man

Repair Man — Wed, 17 Aug 2011 05:34:11 +0000

@ Corey Perry,

I Have A Satellite u505-s2950 (Very Similar Design As In Picture 6)and im wondering if I unsolder the cmos battery will it remove the password or is this one of the laptops that that will not work for.

Not sure 100% but I think removing the CMOS battery will not clear BIOS password. Most likely this one is like previous Satellite models – there are two contacts on the motherboard that you have to short with a screwdriver for a few seconds. Usually these contacts look like engaged gear teeth. Maybe you can find these contacts in the memory compartment. Just a guess.

By: Corey Perry

Corey Perry — Wed, 17 Aug 2011 04:28:10 +0000

I Have A Satellite u505-s2950 (Very Similar Design As In Picture 6)and im wondering if I unsolder the cmos battery will it remove the password or is this one of the laptops that that will not work for.
plz help

By: Rick

Rick — Sat, 18 Jun 2011 12:08:10 +0000

Will a Toshiba Satellite laptop operate without the CMOS battery?

By: STEVEN

STEVEN — Sun, 05 Jun 2011 12:56:35 +0000

04 toshiba satellite a25 must disassemble every thing screen harddrive key board i hope i can remmember how too put it back togeter 83 screws out so fare 18 screws to go CMOS/RTC GREAT DESIGHN what a load. seems i could be more execesable tashiba support didnot know where CMOS/RTC WAS REFERD ME OUT SAYS TECH SUPPORT 34.95 PLEASE.DIFFACULT, SAY A PRAYER FOR MY LAPTOP.AT FREE I PAID TOO MUCH. STEVEN

By: Amaury Lora

Amaury Lora — Sun, 01 May 2011 20:22:52 +0000

How can I clear the bios password in a dell inspiron 8100
service tag # 5nppy01-595b.

By: Joemar Cera

Joemar Cera — Wed, 30 Mar 2011 05:57:02 +0000

Good day mam,how can I identify the cmos battery code of my neo laptop M541N,co’z I dont have any model of it..thanks and hope that you may provide my query..