Compaq Computer Corp. is recalling about 594,000 power adapters and cords used with certain notebook computers sold in the United States because they can overheat and cause fires, the Associated Press has reported.

Though a Compaq spokeswoman said it was unclear how many of the company’s school customers might be affected by the recall, some of the adapters in question were sold with notebook computer models marketed to schools, including the Armada 110.

Houston-based Compaq has received five reports of fires linked to the AC adapter cases, the Consumer Product Safety Commission said Oct. 4. No injuries were reported.

The recall, part of a worldwide recall of more than 1.4 million AC adapters, involves adapters with the model series number “PPP003SD,” “PPP003,” and “PP2012.” The number is located directly under “Compaq Computer Corporation” on the adapter label.

The AC adapters were sold individually and with the following notebook computers: Armada M300, Armada 3500, Armada M700, Armada E500s, Armada E500, Armada V300, Armada 100s, Armada 110, Notebook 100, Prosignia 170, and Prosignia 190.

Compaq distributors sold computers with these AC adapters and the individual adapters themselves from September 1998 through July 2001. The computers with these adapters sold for between $999 and $4,399, and the individual adapters sold for between $65 and $98.

This recall and replacement program affects only the AC adapters described above, not the notebook computers themselves. The safety commission said consumers should stop using the recalled AC adapter and power cord and contact Compaq to order free replacements.

Customers can call Compaq toll-free at 1-888-302-7689 between 7 a.m. and 7 p.m. CST Monday through Friday. Replacements also can be ordered and tracked online at Compaq’s AC Adapter Replacement Program web page, http://compaq.com/products/notebooks/adapterrecall.