3-10 Troubleshooting and Diagnostics HP OmniBook 900 Symptom Call Center: Repair Center: Repair Center: Suggestions Likely Causes Comments PCMCIA General problems Make sure Card Executive is installed for Windows NT. If the card requires an IRQ, check that there is one available. Check for conflicts or refresh the device list in Device Manager (Windows 95) or Administrative Tools or Control Panel System (Windows NT). Reboot the computer. Try the card in the other slot or in another computer. Check the OmniBook website for installation instructions (page vi). Download current drivers from the card manufacturer’s website. Motherboard. PCMCIA socket.
Using a flashlight, look for bent pins inside the PCMCIA socket. If both slots have problems, replace the motherboard. If only one slot has a problem, try replacing the PCMCIA socket. AC adapter Does not power the OmniBook Try another ac adapter, if available. AC adapter. Motherboard. The ac adapter is not repairable—it must be replaced. Miscellaneous Clock loses time Plug in ac adapter for 24 hours to charge backup battery. Motherboard. Charge backup battery. Computer gets hot It is normal for the computer to get hot. Make sure the air holes in the side and bottom are clear. Make sure computer is not resting on a soft surface.
DOS games and other programs that drive CPU usage toward 100% can contribute. Fan. Thermal connections. Heatsink damage. Check the fan. (Do not press or spin the blade with your finger.) Check for proper contact between heatsink, thermal pads, CPU, and Northbridge IC.