HP — Hp OB600EPR.SAM — user manual

Troubleshooting and Repair Known Hardware Issues (DOS 6.2 and Windows 3.11) Unit is HOT while charging. Battery is HOT Display may discolor while charging closed Clears up when cooler in a few seconds. Display has 1 minute warm up period Brightness control disabled during that time After first boot, display may need contrast adjustment to make it readable. Press and hold (UP) contrast button until display is readable. Power Supply is noisy (customers often describe the noise as a whine). This does not mean that the hard drive is going bad. Users who put multiple business cards in the card slot may force card holder to peel up.

AC Adapter is 40W and it is possible to "chain" or configure the system with cards and devices that require more than 40W. System may do hardware shut down if not properly powered. 30