Question about Dell OptiPlex 170L PC Desktop

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Machine keeping loosing cmos setup and freezing

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Re: Machine keeping loosing cmos setup and freezing - Dell OptiPlex 170L PC Desktop PC Desktops

Have you checked the on board battery?

Posted on Jan 01, 2008

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Re: Machine keeping loosing cmos setup and freezing

Loosing CMOS setup because integrated Lithium battery is low. Replacing the battery will resolve the issue. You need to open the casing in order to reach the CMOS battery. You can also ask assistance of a qualified hands on technician for the replacement of the battery. Freezing also most likely a related issue due to BIOS settings.

Good Luck

Posted on Jan 01, 2008

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System appears to be Open VMS based - CMOS display is probably disabled. You may have an interesting time if trying to use as a windows machine, as you may have to remove the coin cell or other type of CMOS battery for 5 minutes and reset CMOS before you can get the machine to allow you to access CMOS setup. See the link below for system software manual.

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Phoenix awardbios CMOS setup utility

What you are supposed to do is set up the CMOS. Usually you are presented with a default setup and unless there is something that has to be changed you can just accept what's shown on the screen.

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Have you tried a System Restore/Recovery? Can you boot in safe Mode? Have you removed and tested the HDD? Do you have a Windows Repair Disk? How old is the Machine? May be time to replace the HDD? Has the Machine been losing time when you restart after a long shut down? Try replacing the CMOS battery. NTFS:

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Foxconn n1996 chip needs replacing as had power cut as updating bios

Reboot the computer.
If error still occurs after rebooting the computer enter CMOS setup and check all values, this includes verifying the time and date are correct.

During the boot process you will see on the screen a certain key to press to enter setup
Press and hold that key during the boot up process to enter BIOS you can load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart
You will also need to set the time and date

In the main or system setup screen you should be able to see the date and time Using your arrow keys navigate to the date and change the date. Once highlighted on the month, day, or year, press your arrow keys or your page up / page down keys to change the date.

Once everything has been verified and changed make sure you save and exit CMOS setup.

If everything appears to be correct and the issue persists try resetting the CMOS values to the defaults or Reset Configuration Data.

If this issue continues to occur after you turn off your computer off it is possible that the CMOS battery may be failing or already bad. Before considering replacing the CMOS battery try leaving your computer on for several days.

If a BIOS update has been run on the computer the values stored in CMOS may have been reset. Enter CMOS setup re-enter all values and then save and exit CMOS setup.

If you're unable to enter the CMOS setup or after running a BIOS update your computer no longer keeps its values the incorrect BIOS update may have been installed for your computer or the version downloaded may be corrupt. We suggest trying to update the BIOS again or reverting back to an earlier version.

Hope it helps

Nov 09, 2011 | Dell Studio Xps 9100 Desktop Computer

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I have a compaq Presario S4100NX that won't keep time. I have replaced the cmos battery, I flashed the bios to the latest version, I reset the bios to manually load default setup, but still no joy....

Does it loose time even with power cable connected? If so I would say your MB has a bad RTC chip and you need to replace the motherboard. Other things to check are make sure the CMOS battery your using is BRAND NEW with a good expiration date. That the contacts on the MB are making firm contact with the battery. Also check to make sure the contacts are CLEAN... no residue on them.

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CMOS checksum bad Press f1 to run setup Press f2 to load default values and settinss Keeps comming up on star up

Your CMOS battery may be dead. That is the watch style battery on your motherboard. Choose f2. If the problem persists, change the battery

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The emachine model KAWE0 is with operating system windows xp sp1 doesnot recognise any usb device.

Good day sir, hi, usually its one or two ports that does not recorgnise a usb device, but if all ports does not recognise the usb device, check the CMOS setup. check this out;
  • one or two ports does not recognise the usb device, this is a local fault, try to check the CMOS setup, this could also be the port itself is the faulty one having loose connection.
  • all ports does not recognise the usb device, this is a system fault, check again the CMOS setup if the USB port is enabled, check the USB device itself also. to make sure use another pc to test the usb device.
A computer virus can also cause the usb port to malfunction, run an anti virus software, if possible you can reinstall the XP and test the USB port afterward.

If all else fails, you can buy a USB card and plug it on the expansion slot on your PC.

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Yes it is a CR2032, just one of them and it goes in with the side with the numbers on it facing up

Hope this helps

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You said that you already bought a new cmos bat, but still theres a problem.check the cmos battery socket,power on tyour pc and go to cmos setup,optimize default setting and set time and date.

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Replace the CMOS battery that is busted. after replacing configure in bios setup and load bios setup default.

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