Dell OptiPlex - Recent Questions, Troubleshooting & Support - Page 4
Unsupported memory configuration.please populate dimm1
open it up ..and see what is wrong with the first slot of ram memory ...if the inserted module is not working ...than remove it ..(to check if it works just leave it by itself and try to start the computer ..) anyway ..if there isn't any module in the first slot ..than move one from the last slot ..I mean mount the modules in slots from number 1 to ...as many you have available ...After finish ...restart ..press delete button right the way to go to bios settings ...and in here ..look for optimal factory default settings ..and engage them by selecting with arrows..and enter..and confirm with enter (Y)
to save settings before exit ..press F 10 ..and enter ..
This will assure the ram configuration ...in the correct way ..
Please read careful ..and ask if you do not understand something ...and also ..please rate my answer..cause it helps with my rating and activity on the site..
on Feb 23, 2017
I have forgotten my bios password
Desktops PCs usually have a 'jumper' on the motherboard, inside of the PC, that resets the BIOS, removing the password but also changing some settings to their defaults. It takes some 'know how' but you can google it to help you locate it.
on Oct 03, 2016
Error light code 3 & 4 in front panels
Hi Carlos, error code 3 & 4 is caused by faulty RAM (Memory modules) installed in the PC. You could try the following to resolve the issue:
1. Open up the computer cover
2. Locate the memory module(s)
3. Remove them memory module(s)
4. Use a can of compressed air or spray contact cleaner onto the center of the DIMM connectors to clean all the contacts. Do NOT use a normal brush to clear dust away. Wait for 5minutes for the contact cleaner to dry.
5. Reseat the memory module(s)
6. Turn on the computer and check if codes 3 & 4 still light up. If it does not, it should boot into the Operating System.
7. If codes 3 & 4 continues to light up, you will need to run a memory diagnostic test to determine which of the memory module is faulty.
on Sep 07, 2016
How do I remove administrator password on the BIOS of Optiplex 390
The CMOS contains the current BIOS settings
- Turn off the computer and disconnect the power cable from the electrical outlet.
- Remove the computer cover.
- Locate the 2-pin password connector (PSWD) on the system board.
- Remove the 2-pin jumper plug.
- Locate the 2-pin CMOS jumper (RTCRST) on the system board.
- Move the 2-pin jumper plug from the password jumper to pins into the CMOS jumper.
- Plug in AC power to the system and wait ten seconds for the CMOS to clear.
- Move the 2-pin jumper plug back to the password jumper.
- Replace the computer cover.
- Connect your computer and devices to electrical outlets, and turn them on.
Location of the RTCRST Jumper will vary by platform and form factor. For more information about the jumper locations refer to the system service manuals located at www.dell.com/support/manuals
on Aug 15, 2016
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