The jumper labeled RTC_RST on the motherboard will clear the NVRAM.

1. Turn off the computer and disconnect the power cable from the electrical outlet 

2. Remove the computer cover

3. Reset the current CMOS settings:

a)  Locate the password (PSWD) and CMOS (RTC_RST) jumpers on the system board. (The jumper locations on the mini-tower computers are shown in            the image above.)

 b)  Remove the jumper plug from its pins

 c)  Place the password jumper plug on the RTC_RST pins and wait approximately 5 seconds

 d) Remove the jumper plug from the RTC_RST pins and place it back on the password pins

Close the computer cover. 

Connect your computer and devices to electrical outlets and turn them on.

.

Is there anyone that can assist with the modification of the "Service Tag"?

Dell has a utility that will change the Service Tag. Perhaps Chris M. can assist?

Newer systems in the 960 or 7010 series do this in CMOS.  That's why later bios allow changing the tag 1 time only if its blank.  No utility just typing it in at the cmos level.  DCCU probably works with 960 but the 7010 and up is a totally different maker. There is no panacea one size fits all.

The dos based Service Tag utility ASSET209.COM is for very old units.

DCCU 3.XXX is required for the 960 etc.

http://ftp.us.dell.com/sysman/DCCU_3_1_1045.exe

 

Just installed DCCU it can adjust the owner tag but NOT the service tag.

You can use the Dos Asset tag utility to do this on older dells.

There are hidden switches to asset.com to change the service tag.

ASSET.com version 2.09 from the resource CD would be the likely candidate.

 

ASSET 209   Asset Version 2.09
Release Title: System Utilities:
Dell Asset Utility, Utility, English, Multi System, 2.09

Release Date: 09/27/2005
Description: Asset Utility

http://ftp.us.dell.com/utility/R109071.exe

 

Utility : Dell Asset Utility
Version 2.09
For DC051, DXP051, DXC051, DM051, DE051, DXP061, DXC061, DM061, DV051;
Dimension : 8300 / 8300N, 2400, 4700, XPS Gen 3, 8400, 4700C, 5000, 3000, 9100,
XPS (Gen 5), XPS Gen 4, 5100C, 5100;
OptiPlex : SX280, GX630, GX530, GX620, GX520, 210L, 170L, GX280, 160L,
SX270 / SX270N, GX60, GX270 / GX270N;
Precision : 360 / 360N, 670, 470, 370, 380, WS390, 690, 490
On Not Applicable
 

boot from dell resource CD
choose "Q" to quit the diagnostics and go to command prompt
navigate to "asset209.exe" tools
cd csd\tools\bios
run "asset209.com"

 

Usage:
ASSET new_asset_tag Specify new asset tag
ASSET /d Delete asset tag
ASSET /o new_owner_tag Specify new owner tag (if applicable)
ASSET /o /d Delete owner tag (if applicable)
ASSET /? This help screen

 

Hidden Options

ASSET /s new_service_tag Specify new service tag
ASSET /s /d Delete service tag
ASSET /b Specify new system board tag
system board tag must be "ssssssssssssssssssss-vvv-", where
s..s is the 20 digit system board Part number string,
vvv is the 3 digit system board rev,
- is a don't care character, but must be present
ASSET /b /d Delete system board tag
ASSET /f [other_options] Force Affirmative response
ASSET /x [other options] eXtended display - displays all tags