Compaq Deskpro 4000 Facts, Specifications, BIOS and Battery Details

The Compaq Deskpro 4000 desktop computer offers a CD drive, a 3.5" floppy drive, standard expansion slots, and a Pentium-class processor. It was manufactured in a number of sub-models with somewhat different processor speeds and memory capacities. The following information applies to all varieties of the Compaq Deskpro 4000...

Specifications

According to the manufacturer, the Compaq Deskpro 4000 has ISA and PCI expansion card slots, as well as a built-in network interface. Compaq sold it with a hard drive that holds approximately two gigabytes worth of data. Video, sound, and processor speed (generally 100-300 MHz) vary by the sub-model.

CMOS/Backup Battery

This computer doesn't use the same CMOS backup battery as most desktop PCs. For the correct Compaq Deskpro 4000 replacement battery, visit the HP Parts Store website and select your PC's exact model number. Then pick "Battery" from the "Keyword search" menu.

Resale Value

A used Deskpro 4000 sold for $138.25 USD in December 2010 on eBay. The price included shipping and handling. Value will vary depending upon the sub-model, condition, and any upgrades. Individual stock parts from this computer don't appear to sell successfully on eBay.

BIOS Access

The user cannot always simply access system BIOS settings by pushing a key at start-up. This holds true for many Compaq computers, along with older PCs from a few other brands. Try pressing F10 during start-up. If that doesn't work, download the "Computer Setup" program for the 4000 from HP/Compaq's website and run it off a floppy disk.

Millennium Bug

"Y2K" issues generally don't present a problem for this model. According to the Orange County website, the Compaq Deskpro 4000 computer is "Y2K" ready without any adjustment. However, a few older software programs can still cause such problems on any PC.

Other Facts

The HP/Compaq website provides driver downloads, model-specific information, and other support for Deskpro 4000 owners. According to Amazon.com, customers were first able to purchase this model in 2002. It was later discontinued.

Sources:
1. Orange County, http://www.oc.ca.gov/systems/compaq.htm
2. HP, http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00355780〈=en&cc=us&taskId=101&prodSeriesId=96258
3. Amazon, http://www.amazon.com/Compaq-Deskpro-Desktop-266-MHz-Pentium/dp/B00005V600
4. eBay, http://www.ebay.com/ (completed listings require log-in)