| D8540A | D8542A | |
| Processor | Intel PentiumŪ III Xeon 550 MHz | |
| Front Side Bus speed | 100 MHz | |
| Level 2 cache | 1 MB write-back secondary cache memory | 2 MB write-back secondary cache memory |
| Flexible disk | 3.5", 1.44 MB | |
| Hard disk drive | 2 x optional low-profile hot-swap ULTRA 2 SCSI drives | |
| SCSI Controller | Integrated dual Ultra2 (LVDS) 80 MB/s | |
| Disk array controller | Optional HP NetRAID-3Si 3-channel Ultra2 SCSI, I20 capable; HP NetRAID-1Si 1-channel Ultra2 SCSI, I2O capable; FC Array (Fibre Channel) | |
| Standard memory | 256 MB - ECC, 100 MHz SDRAM DIMM (6 ns) | |
| Video | Maximum with 2-MB video memory : 1024 x 768 x 256 colours, non-interlaced | |
| Video RAM | 2 MB | |
| Memory Max | 32 GB | |
| Memory Bus Speed | 64 bit/clock independent | |
| Memory upgrade | There are 2 16-slot memory boards supported, 1 memory board is supplied as standard. On first memory board any DIMM can be installed in any slot, in any order. Maximum memory = 32 slots x 512 MB = 16 GB (32 x 1 GB = 32 GB when available). If the second memory board is installed, then any size DIMM can be added in any order, but the memory configuration of DIMMs on one board must match exactly the DIMM configuration on the second board. Therefore, memory must be added in pairs with 2 boards | |
| Optical Drive | CD-ROM 24x Max EIDE | |
| Mouse | Not included | |
| Keyboard | Not included | |
| LAN | Support for redundancy, load balancing and Etherchannel | |
| Shelves | 2 low-profile Ultra2 SCSI hot-swap shelves; 1 common tray shelf (supports HP SureStore DAT 24i, C1555D); 1 x 24x Max-Speed EIDE CD-ROM | |
| External data storage | HP NetServer Rack Storage/12 (D5989B); HP NetServer Rack Storage/12 FC (D5991A); Also supports full range of HP Mass Storage solutions, FC/30, Autoraid, EMC Symmetrix, HP SureStore XP 256; Clustering support : (see HP web site for certified solutions using above storage solutions) | |
| Package | Rack-Mount Version (7U) | |
| Accessory Slots | 10 hot-plug, full-length PCI slots; 4 x 64-bit, 66 MHz slots; and 6 x 64-bit, 33 MHz slots (1 PCI slot used by preinstalled HP TopTools Remote Control Card) | |
| Cooling | Six redundant and individually hot-swappable fans | |
| I/O Ports | 2 serial; 1 parallel; 2 Mini-DIN; 2 Ultra2 SCSI (1 internal, 1 external); 1 15-pin video | |
| NetServer navigator | Bootable CD with: TopTools for Server; NetServer Configuration Assistant; NetServer Diagnostic Assistant; NetServer Information Assistant; ManageX/SE (limited version) | |
| Remote Administration | Pre-installed TopTools Remote Control Card (takes 1 PCI 32 slot) | |
| Power Supply | Three 750 W hot-swappable, load balancing power supplies | |