How to login in safe mode in gx620 - Dell OptiPlex GX620 PC Desktop

If you are not able to boot your computer in normal mode or supposed your notebook is infected with Trojans or malware, you are able to get rid of them with Safe Mode. Furthermore, it is easier and safer to bypass Windows 7 logon password in Safe Mode when lost or forgot Windows password.
For Windows 7, there are 3 different types of safe mode, Safe Mode, Safe Mode with Networking and Safe Mode with Command Prompt. The following guide is about how to bypass Windows login password with Safe Mode with Command Prompt. With command in safe mode, you can reset Windows password. Details are as follow:
Step 1: Start or restart your Windows 7 computer.
Step 2: Press F8 to enter Advanced Boot Options before the Windows 7 loading screen appears.
Step 3: Choose Safe Mode with Command Prompt in the coming screen, and then press Enter.
Step 4: Wait for Windows 7 files to load until Windows login screen comes up.
Step 5: Log in with an administrator account until you see login screen.
Step 6: A Command Prompt appears. Type net user in the Command Prompt and then hit Enter. All Windows user accounts will be listed for you.
Step 7: Type "net user iSunshare 12345" and hit Enter.
Step 8: The new password has been successfully reset when the command is completed successfully.
Step 9: Log on your PC with the new password.

These issues are usually caused by the bad capacitors on the motherboard as Computerscot stated. Here is a repair guide that shows how to check your board for the bad capacitors and what to do if you find them.

http://www.ccl-la.com/blog/index.php/dell-optiplex-gx620-motherboard-repair/

I hope this helps, if so please rate my solution.

BuddyMc

Please see that the connectors on the PC, check if there is loose connect on the board. Also if the bios battery is low on voltage- check with a multimeter.
Finally the memory card can also have a loose connection on the slot, remove and reset or try with another card.

You may want to try Safe mode with networking. Safe mode with networking works just like your normal mode and you don't have to login as administrator and you can use your normal login credentials if any.

my dell optiplex gx620 is coming on but its not passing the bios revision or the boot up page i have tried every thing removing the small battery in the mother board unplugging the hard drive, i even busted the whole system and it still not coming on. i have triied sending it into safe mode and the 1234 light are comming on i have runed out of option and i dont know what to do.this all started 3 days when i turned off the computer tried to put it on but after it came on pass the boot up page the screen was blank

are u able to boot in safe mode?------>on power on keep tapping F8 key.u can select safe mode and press enter->login to adminsitrator mode(password can be blank).if u are able to login to safe mode then itz an issue with ur OS(win xp or win vista or win7 whichever is installed on ur pc).If u are unable to login to safe mode please let me know

Your Optiplex should have come from Dell with a restore disk.

While in safe mode, back up all of your important data -- get it off your computer. Then use the restore disk to reinstall your operating system and restore the computer to how it came from dell.

You then can put all of your backed up data back on your Dell.

try to press F8 key and you can get safe mode for boot your system.

You may have to boot into safe mode and reset the video settings to a safe setting like 1024x768.

1. To get into safe mode, continuously press F8 while the computer is booting up.
2. Eventually you will get a Windows XP Boot Menu.
3. Choose the option for Safe Mode.
4. Go to Start, Control Panel and double-click Display.
5. On the Settings tab, drag the slider bar to 1024x768.
6. Click OK
7. Shut down and reboot.

If the problem goes away, then you are good. Otherwise, you'll have to boot menu again (F8) and choose Enable VGA Mode.

type in dell gx620 audio drivers in google and you should get your drivers.

Dennis