Board Layout

Top View

Acer Aspire 4810t Bios

#

Item

#

Item

1

LCD connector

7

Power board cable connector

2

Internal microphone cable connector

8

USB board cable connector

3

Speaker cable connector

9

ExpressCard/54 slot

4

Keyboard cable connector

10

ICH8-M chipset (south bridge)

5

Touchpad cable connector

11

Launch board cable connector

6

Media board cable connector

Acer Aspire 5517 Usb Replacement

#

Item

#

Item

1

AC-in jack

11

5-in-1 card reader

2

Mini-card connector

12

RTC battery cable connector

3

Battery cable connector

13

Modem board

4

CPU

14

Volume control wheel

5

Intel PM965 Express chipset (north bridge)

15

Line-in jack

6

CRT port

16

Microphone jack

7

RJ11+RJ45 port

17

Line-out jack

8

S-video port

18

ODD connector

9

USB ports

19

HDD connector

10

1394 port

20

Short R525 to clear password.

Standard Operation Procedures of Password Bypassing and BIOS Recovery

For RD and CSD to debug easily, the system provide one hardware DIP switch for Bypassing Password Check, and one Hotkey to enable BIOS Recovery.

1. DIP Switches:

DIP

Default Setting

Description

SW1

Disabled (High)

Bypassing Password Check

2. Hotkey to enable BIOS Recovery: press the combination Fn+ESC, then press the Power Button. To use this function, it is strongly recommended that the AC adapter is connected to the system and plug-in to a wall outlet and the Battery is also in the system

Bypassing Password Check (SW1): If the user has set Password (power-on or setup password) for security reason, BIOS will check password during POST or when entering the BIOS setup menu. However, if it is necessary to ignore the password check, the user may enable DIP SW1 to bypass password check.

BIOS Recovery: Boot Block is a special block of BIOS. It is used to boot up the system with minimum BIOS initialization. The user can enable this feature to restore the BIOS to a successful one if previous BIOS flashing process fails.

1. DIP Switch Location:

RD/CSD can enable or disable this function by switching the DIP. The DIP switch is located as shown in the figure below:

Acer Aspire Clear Bios

2. Clear Password

DIP SW1: Bypassing Password Check is disabled by default. Switching it to ON then powering on the system will force the BIOS to clear Supervisor and User passwords. The power-on, setup password, and the HDD password are all cleared.

3. Restore BIOS by the Crisis Disk

Enable this function by pressing the combination: Fn+ESC, and pressing the Power Button. To use this function, it is strongly recommended that the AC adapter is connected to the system and plug-in to a wall outlet and the Battery is also in the system. If this function is enabled, the system will force the BIOS to enter a special BIOS block, called BootBlock. RD/CSD can use this special BIOS code to recover the BIOS to a successful one if previous BIOS flashing process fails. However, before doing this, one Crisis Disk should be prepared in WinXP. Detailed steps are as the followings:

  1. Prepare the Crisis Disk in WinXP.
  2. Insert the Crisis Disk to a USB floppy drive which is attached to the failed machine.
  3. While the system is turned off, press and hold Fn+ESC, then press Power Button. The system should be powered on with Crisis Recovery process.
  4. BootBlock BIOS starts to restore the failed BIOS code. Short beeps should be heard when flashing.
  5. If the flashing process is finished, a long beep should be heard.
  6. Power down the system after you hear the long beep.

If the crisis recovery process is finished, the system should be powered on with the successful BIOS. RD/CSD can then update the BIOS to a workable one by regular BIOS flashing process.

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Responses

  • Bounpheng
    how can i remove password bios and hardisk acer aspire 4920
    7 years ago
  • Han
    My 4920 won't powered ON, i see the power board cable has broken. How to short the power board until it can powered ON?, 20 pin is there. Please help.
    7 years ago
  • harold
    HOW TO flash bios aspire 4920g?
    7 years ago
  • Markus Zimmerman
    How to update bios acer aspire 4920?
    7 years ago
  • seppo
    How to short R525 on acer aspire 4920g?
    7 years ago
  • frank schultheiss
    Where to locate BIOS connector on acer 4920?
    7 years ago
  • andre
    How to system recovery acer aspire 4920 without entering the BIOS?
    7 years ago
  • Luke
    How to flash bios for acer aspire 4920g?
    7 years ago
  • Arabella Took-Took
    How to reset bios in acer aspire 4920G?
    7 years ago
  • mireille
    How to update Acer aspire 4920G BIOS?
    7 years ago
  • armida
    How to reset password bios aspire 4920?
    6 years ago
  • Fethawit
    How to check power connectors are connected to board on an acer aspire 4920?
    6 years ago
  • gennaro
    How to remove acer 4736z laptop cmos battery?
    6 years ago
  • Segan
    How to repair graphic card on laptop aspire 4715z intel?
    6 years ago
  • Ralf
    Where is the acer extensa 4230 cmos battery?
    5 years ago
  • Sebhat
    How to repair acer aspire 5520 wont start?
    5 years ago
  • doreen
    Where is the clock battery on a aspire 5538?
    5 years ago
  • tero
    How to short r525 to bypass acer 4920?
    5 years ago
  • ines
    How to update bios in acer extensa 4920g?
    4 years ago
  • Libera
    How to replace cmos batery on acer 4920?
    2 years ago
  • rita didonato
    How to check aspire 4920 internal battery?
    2 years ago
  • URANIO
    How to remove cmos in Acer aspire 4920?
    10 months ago

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