My Dell Dimension 4600 didn't save cmos setting after i turn off power.
Any help is appreciated. Thanks in advance. Hope to hear from you soon.
The Duracell DL2032 battery is dead. Time to go to the Grocery Store in the pharmacy section and buy a new battery.
Removing and Installing Parts
Dell™ Dimension™ 4600 Series Service Manual
A coin-cell battery maintains computer configuration, date, and time information. The battery can last several years.
If you have to repeatedly reset time and date information after turning on the computer, replace the battery.
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Please replace your motherboard battery. After you do that, boot to system set up (F2) and configure your hardware and the clock.
Please post back and let me know if you need more help.
Sorry, i combine to post below.
You have to do F2 and save the settings.
If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop. Then shut down your computer and try again.
System setup screens display the current configuration information for your computer. Information on the screen is divided into five areas:
Fields to the right of the option titles contain settings or values. When <Enter> appears to the right of an option title, press <Enter> to access a pop-up menu of additional options.
<Tab> or down arrow
Moves to the next field.
<Shift>, <Tab> or up arrow
Moves to the previous field.
back arrow or forward arrow
Cycles through the options in a field. In many fields, you can also type the appropriate value.
<Page Down> or <Page Up>
Scrolls through help information.
Enters the selected field's pop-up options menu.
spacebar, <=> or <->
In the selected field's pop-up options menu, cycles through the options in a field.
Exits system setup without restarting the computer and returns the computer to the boot routine.
Exits system setup and restarts the computer, implementing any changes you have made.
Resets the selected option to the default setting.
Restores all system settings to the default configuration.
Diskette Drive A
Identifies the floppy drive attached to the DSKT connector on the system board. With the standard cabling configuration, Diskette Drive A (the boot floppy drive) is the 3.5-inch floppy drive installed in the top externally accessible drive bay. The two options are 3.5 Inch, 1.44 MB and Not Installed.
Tape drives are not reflected in the Diskette Drive A option. For example, if a single floppy drive and a tape drive are attached to the floppy drive interface cable, set Diskette Drive A to 3.5 Inch, 1.44 MB.
SATA Primary Drive
Identifies the serial ATA hard drive attached to the SATA1 connector on the system board.
SATA Secondary Drive
Identifies the serial ATA hard drive attached to the SATA2 connector on the system board (not available on the small form-factor computer).
Primary Drive 0
Identifies the IDE hard drive attached to the IDE1 connector on the system board.
Primary Drive 1
Identifies the IDE device attached to the IDE2 connector on the system board.
Secondary Drive 0
Identifies the device that is cabled with the drive on the IDE1 data cable.
Secondary Drive 1
Identifies the device that is cabled with the device on the IDE2 data cable.
IDE Drive UDMA
Sets the mode for all installed hard drives.
NOTE: You must have an IDE device connected to the primary IDE interface if you have an IDE device connected to the secondary IDE interface.
If you have a problem, see "Hard Drive Problems" in your Owner's Manual.
Hard-Disk Drive Sequence
If you insert a boot device and restart, this option appears in the system setup menu.
System BIOS boot device
To boot from a USB memory device, select the USB device and move it so it becomes the first device in the list.
(This option is available only for the current boot process.) The computer attempts to boot from the sequence of devices specified in system setup.
The computer attempts to boot from the floppy drive. If the floppy disk in the drive is not bootable, or if no floppy disk is in the drive, the computer generates an error message.
The computer attempts to boot from the primary hard drive. If no operating system is on the drive, the computer generates an error message.
The computer attempts to boot from the CD drive. If no CD is in the drive, or if no operating system is on the CD, the computer generates an error message.
(This option is available only for the future boot process.) As the computer boots, it prompts the user to press <Ctrl><Alt><b>. Pressing this key combination causes a menu to display that allows you to select a method for booting from a network server. If a boot routine is not available from the network server, the computer attempts to boot from the next device in the boot sequence list.
USB Flash Device
Insert the memory device into a USB port and restart the computer. When F12 = Boot Menu appears in the upper-right corner of the screen, press <F12>. The BIOS detects the device and adds the USB flash option to the boot menu.
NOTE: To boot to a USB device, the device must be bootable. To ensure that your device is bootable, check the device documentation.
Indicates amount of installed memory, computer memory speed, amount of video memory, size of the display cache, and channel mode (dual or single).
Installed System Memory
Displays the amount of installed system memory.
System Memory Speed
Displays the speed of your system memory.
System Memory Channel Mode
Displays the mode of your system memory.
Displays the amount of aperture memory. The default setting is 128 MB.
The processor speed at which the computer boots.
Press the left- or right-arrow key to toggle the CPU Speed option between the resident processor's rated speed (the default speed) and a lower-compatibility speed. A change to this option takes effect immediately and no restart is necessary.
To toggle between the rated processor speed and the compatibility speed while the computer is running in real mode, press <Ctrl><Alt><\>. (For keyboards that do not use American English, press <Ctrl><Alt><#>.)
The speed of the processor's system bus.
The manufacturer's identification code(s) for the installed processor.
The core speed at which the processor(s) can operate.
The size of the processor's L2 cache.
The setting that allows you to enables or disable Hyper-Threading technology for operating systems that support Hyper-Threading. The default setting is Disabled.
NOTE: If your computer has a processor capable of supporting Hyper-Threading, the Hyper-Threading option is the first selection in the list.
Integrated Devices (Legacy Select Options)
Configures the following devices integrated with the system board:
The settings are On (default) or Off.
Network Interface Controller
The settings are On (default), Off, or On w/ PXE.
The settings are On or Off.
The settings are On (default) and Off.
The settings are Enabled (default) and Disabled.
Serial Port 1 and Serial Port 2
The settings are Off and Auto (default). (Serial Port 2 appears as an option if you have a serial port card installed.)
Auto automatically configures a connector to a particular designation (COM1 or COM3 for Serial Port 1; COM2 or COM4 for Serial Port 2).
If you set a serial connector to Auto and then add a card that is also set to Auto, the computer automatically remaps the integrated port to the next available connector designation that shares the same IRQ setting as follows:
NOTE: When two COM connectors share an IRQ setting, you can use either connector as necessary, but you may not be able to use both connectors at the same time.
The settings are Mode, I/O Address, and DMA Channel:
NOTE: You cannot set the parallel connector to 3BCh if Mode is set to EPP.
IDE Drive Interface
The settings are Off and Auto (default).
Auto turns off the IDE interface (when necessary) to accommodate a controller card installed in an expansion slot.
The settings are Auto (default), Read Only, and Off.
Primary Video Controller
The settings are Auto (default) and Onboard.
Onboard Video Buffer
The settings are 1 MB (default) and 8 MB.
The options are S1 or S3.
AC Power Recovery
Determines what happens when AC power is restored to the computer.
Low Power Mode
The settings are Enabled and Disabled.
See "Power Problems" in your Owner's Manual for more information.
Display system security options when you press <Enter>.
The settings are On and Off (these settings do not apply to 84-key keyboards).
Activates the rightmost bank of keys so that they provide the mathematical and numeric functions shown at the top of each key.
Activates the rightmost bank of keys so that they provide the cursor-control functions shown by the label on the bottom of each key.
Report Keyboard Errors
Displays keyboard errors when set to Report. The default setting is Report.
Auto Power On
Time is kept in a 24-hour format (hours:minutes). Change the start-up time by pressing the right- or left-arrow key to increase or decrease the numbers, or type numbers in both the date and time fields.
The default setting is Disabled.
This feature does not work if you turn off your computer using a power strip or surge protector.
Your computer starts more quickly, skipping certain configurations and tests.
Your computer does not skip certain configurations and tests during the boot process.
OS Install mode
Turns the OS Install mode on and off. The default setting is Off.
IDE Hard Drive Acoustics Mode
The acoustics mode field may contain the following options:
The hard drive operates in its quietest setting.
The hard drive operates at its maximum speed.
NOTE: Switching to performance mode may cause the drive to be noisier, but its performance is not affected.
Your computer does not test or change the current acoustics mode setting.
The hard drive operates at the level suggested by the hard drive manufacturer.
NOTE: Changing the acoustics setting does not alter your hard drive image.
System Event Log
Displays the system event log when you press <Enter>.
Displays the customer-programmable asset tag number for the computer if an asset tag number is assigned.
This feature allows you to change the boot sequence for devices.
You can use this feature, for example, to restart your computer from a USB device, such as a floppy drive, memory key, or CD-RW drive.
If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop. Then shut down your computer and try again.
The Boot Device Menu appears, listing all available boot devices. Each device has a number next to it.
Thanks SpeedStep and Osprey4.
I am sorry. I did change some new 2032 battery but still the same.
When i turn on power outlet on wall, the computer straight away power on without a need to press power button of cpu. It then show me this.
I press F2 to change System Time and System Date, change Hyper-Threading to Enabled from CPU Information.
Then i Save Changes and Exit bios.
I need to repeat this everytime after i turn off power outlet on the wall. Please help me. Thank you.
Make sure the battery is good, and installed correctly.
If you typically turn off the power outlet, you'll go through batteries much faster. My suggestion would be to leave the power to the PC on.
Had try reinstall properly a few new battery and even battery from other working Dell PC still no luck.
I very seldom turn off the power outlet after i first change its battery years ago.
Recently i move the PC and found this problem.
Guess i need to leave the power to the PC on to save me the trouble everytime.
Thanks for your helps all along.
That's a strange error screen because it looks like it says: "Diskette drive 8 seek failure."
If you reboot and press F2, can you get into BIOS Setup? If you can get into Setup, disable the Diskette Interface. Then reset the date and time. Be sure to save these changes before exiting setup. Assuming it boots to the desktop, shut down normally and power off. Then reboot and see if that fixed the problem.
If that doesn't help, try this:
Power off and unplug
Press/hold power button on tower for ~15 sec
Open the case and remove motherboard battery
Press/hold power button on tower for ~30 sec
Leave it unplugged and without the battery for at least a couple of hours
Use a link-free cloth to gently wipe the battery socket on the motherboard and wipe surfaces and edges of the battery to remove fingerprints and dirt.
Then hold the battery by the edges and reinstall (right-side-up!).
See what happens when you reboot now
If this answers your question, please click Yes
Forum Member since 2004
I am NOT a Dell employee
Sorry didn't mention i also need to change Diskette Drive A: to Not Installed from Drive Configuration.
Had try your Method. It fix the cpu from power on by itself when i turn on power outlet on wall.
But too bad still have to get into BIOS to change and save setting everytime.
My Dell OptiPlex 160L no problem with Dell Dimension 4600 battery.
But Dell Dimension 4600 same problem with Dell OptiPlex 160L battery.
Thanks for helping me.
Could be a bad CMOS chip, which of course cannot be fixed without a motherboard replacement.
Guess i have to live with this.
Thanks for your helps.