Compaq 12XL325 Presario 1200 Series Models XL101-XL113, XL115, XL118-XL127 - M - Page 76

Presario 1200 Series Models: XL101-XL113, XL115, XL118-XL127 Shipping Preparation To ship the notebook, complete the following steps: 1. Back up the critical hard drive files. Ensure that backup tapes/diskette are not exposed to electrical or magnetic fields while stored or in transit. 2. Turn off the notebook and external devices. 3. Disconnect the external devices from their power sources, then from the notebook. Important: Ensure that there is no diskette in the diskette drive and that there are no PC Cards in the PC slots. 4. Close the display and all exterior doors of the notebook. 5. Pack the notebook with sufficient packing material to protect it. Use the original packing box or similar packaging. POST Routine Description Note: The following routines are sorted by their test point numbers assigned in the BIOS code. Their actual orders, as executed during POST, can be quite different. Code 02h 03h 04h 06h 08h 09h 0Ah 0Bh 0Ch 0Eh 0Fh 10h 11h Beeps POST Routine Description Verify Real Mode Disable Non-Maskable Interrupt (NM) Get CPU type Initialize system hardware Initialize chipset with Initial POST values Set IN POST flag Initialize CPU registers Enable CPU cache Initialize caches to initial POST values Initialize I/O component Initialize the local bus IDE Initialize Power Management Load alternate registers with initial POST values 34 TROUBLESHOOTING PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES