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HP nc4400 Notebook PC Maintenance and Service Guide
This guide is a comprehensive reference for maintaining and servicing the HP Compaq nc4400 Notebook PC. It includes detailed procedures for troubleshooting, resetting passwords, and replacing components such as the hard drive, battery, and system board.
The document contains a product description, illustrated parts catalog, removal and replacement procedures, full specifications, and an index of part numbers and service considerations, helping technicians perform repairs efficiently.
HP C4400 specifications
| Weight | 1.81 kg |
|---|---|
| Display size | 12.1‑inch XGA TFT |
| Brightness | 150 nits (typical) |
| Contrast ratio | 150:1 |
| Total power consumption | 3.5 W |
All HP C4400 documents by type
Disassembly, diagnostics and part numbers, for repair.
Mounting, wiring and first power-up. Read it before the hardware goes in.
Questions answered in these manuals
How can I reset an unknown password on the HP nc4400?
Prepare the computer for disassembly, remove the RTC battery, wait about 5 minutes, replace the battery, reassemble, connect AC power and turn on the computer; all passwords and CMOS settings will be cleared.
What type of battery does the HP nc4400 use?
It uses a 6‑cell Li‑Ion battery pack.
When should I connect the USB cable?
Do not connect the USB cable until prompted in step 11 of the setup process.
What should I do if the Windows device setup fails?
Unplug the device, plug it back in, check all connections, and ensure the USB cable is connected directly to the computer, not to a keyboard or unpowered hub.