Handy Tech & Associates LLC


You can find the HP Parts Reference Guide and place or check orders at: Internet icon  http://partsurfer.hp.com/prg/ or

You can access PartSurfer at

Internet icon http://partsurfer.hp.com/cgi-bin/spi/main. HP PartSurfer does not require registration and there is no charge.

HP offers a variety of warranty programs:

Warranty details for any product are available in the product QuickSpecs or from the HP Worldwide Limited Warranty and Technical Support website at
Internet icon http://h18004.www1.hp.com/products/servers/platforms/warranty/index.html

A warranty check tool displays the details of product warranties for specific serial numbers. Click on warranty check on this web page: Internet iconhttp://www2.itrc.hp.com/


Note: Do not make assumptions about warranty based on a system's serial number. For example, the serial number of a system that has a failed hard drive may show a manufacture date of four years ago but the proof of purchase on the hard drive may show that it is under parts warranty.

Current HP serial numbers follow these rules:

HP Serial Number Format

CC Country code
S Supply site
YWW Date of manufacture
ZZZZ Unique sequential identifier

For example, a serial number DEH2381234 is interpreted as follows:

Previous HP serial number

HP Serial Number Format

CC Country code
Y Year of manufacture
WW Week of manufacture
NNNNN Unique sequential identifier

Compaq 12-digit serial numbers identified each product uniquely. Each number contains the product configuration and the week, month, and year of production. You may encounter two different serial number formats for Compaq products. The old format was in use from 1989 until 1998. The new format was used on Compaq products produced after 1998 and before the merger with HP.

Unit configuration code

In the 12-digit format, the unit configuration code is located in the product serial number at the fifth, sixth, seventh, and eighth placeholders. The location is the same in both serial number formats.

The quickest way to identify a pre-merger Compaq product from the serial number is to search the Online Agents Reference Set (OARS) using a configuration code. The codes are also located in the illustrated parts section of the Maintenance and Service Guide.

1989 to 1998 Compaq serial number


1989 to 1998 Compaq Serial Number

D Compaq unique character
7 Year of manufacture
45 Week of manufacture
BRZ1 Configuration code that defines the specific computer as shipped from HP
0018 Unique sequential identifier (differentiates units produced in the same week)


1998 to 2001 Compaq serial number


1998 to 2001 Compaq Serial Number

1J Supply site
8 Year of manufacture
C Month of manufacture. Numbers 1-9 are assigned to the months from January to September followed by A for October, B for November, and C for December
CJZ8 Configuration code that defines the specific computer as shipped from HP
W Day of manufacture
21L Unique sequential identifier (differentiates units produced on the same day)