HP Vectra VE 5/xxx HP Vectra VE 5/xx Series 2 PC - Service Handbook - Page 5

IRQs and I/O Addresses 21 HP Vectra VE 5/xx Series 2 PC IRQ IRQ 3 IRQ 4 IRQ 5 IRQ 6 IRQ 7 IRQ 9 IRQ 10 IRQ 11 IRQ 14 IRQ 15 - - - Function I/O Port Hexadecimal Free if not used for serial port 2E8h-2EFh, 2F8h-2FFh Free if not used for serial port 3F8h-3FFh, 3E8h-3EFh Free if not used for parallel port 278h-27Fh, 378h-37Fh Integrated flexible disk drive controller 3F0h-3F5h, 3F7h Free if not used for parallel port 278h-27Fh, 378h-37Fh Available for PCI devices, if not used by ISA board - Available for PCI devices, if not used by ISA board - Available for PCI devices, if not used by ISA board - Integrated IDE controller primary channel Free if not used by secondary IDE channel (CD-ROM) 1F0h-1F7h, 3F6h 170h-177h, 376h Integrated I/O controller 370h-371h Integrated video controller 3B0h-3DFh HP Reserved 496h-497h Cache Memory The PC has a socket for the installation of an optional level-two cache memory module. This module provides 256 KB cache. Video Memory The PC is supplied with 1 MB of video memory for 1024 × 768 in 256 colors. An additional 1 MB of video memory can be installed by adding a pair of 512 KB modules in surface mount technology sockets. This will make a total of 2 MB for 1024 × 768 in 64 K colors. You will need the PLLC Extraction Tool (part number 5041-2553) to remove the video upgrade chips from their sockets. Main Memory The PC uses 32-bit 60ns EDO main memory modules. Memory modules must be installed in pairs of identical modules. Use only 4 MB and 16 MB modules in bank C. The PC is supplied with 8 MB or 16 MB of main memory (2 × 4 MB or 2 × 8 MB memory modules installed in bank A). The maximum memory supported is 128 MB. Medium-Profile Desktop Vectras HP Vectra VE 5/xx Series 2 PC 21-5