DELL PowerEdge 4100 mainboard The DELL PowerEdge 4100 mainboard only supports 180 or 200MHz Intel Pentium Pro (socket 8). The PowerEdge 4100 features two on-board data caches for transferring information to and from the processor. These caches are known as the L1 and L2 caches. The PowerEdge 4100 L1 cache is 64 kilobytes in size, while its L2 cache is rated at either one or two megabytes. Memory The PowerEdge 4100 systems have a minimum of 64 MB of 72-bit-wide, buffered EDO memory. The system memory capacity can be expanded to 1024 MB by using combinations of 32- and 128-MB buffered, EDO dual in-line memory modules (DIMMs) having 168-pin gold connectors. The modules must be added in like pairs to take advantage of memory interleaving. Video Controller The video controller is connected to the PCI local bus. The standard video subsystem contains 1 MB of DRAM memory (not upgradable). Maximum noninterlaced resolutions are 640 x 480 pixels with 16.7 million colors or 800 x 600 pixels with 65,536 colors or 1024 x 768 pixels with 256 colors. Integrated SCSI Controllers A built-in Adaptec 7880 Ultra/Wide SCSI controller provides an ultra-wide fast SCSI interface via a 68-pin connector on the system board. This SCSI controller attaches to the PCI bus to provide a high-performance SCSI bus and also controls the six SCSI hard-disk drives. In the standard Dell PowerEdge 4100 system configuration, the Ultra/Wide SCSI host adapter on the system board controls the SCSI backplane board. When used in combination with an optional PowerEdge Expandable RAID Controller host adapter card, the SCSI backplane board allows you to remove and insert harddisk drives without shutting down the system. External hard-disk drives are not supported by the built-in SCSI controller. A built-in Adaptec 7860 Ultra/Narrow SCSI controller provides a SCSI interface via a 50-pin connector to the CD-ROM drive and to any other SCSI drives. Expansion bus The PowerEdge 4100 has two 32-bit expansion buses. The first is a 33 MHz PCI with five 120-pins expansion-connectors. The second expansion-bus is 8.33 MHz EISA with three 198-pins expansion-connectors. None slot is shared. Producer:   Dell Year:   1996 Origin:   US Chips:   Intel Natoma 82440FX set (PCI Set Intel S82441 & S82445 & S82374 & S82375), SCSI: Adaptec AIC-7860 & AIC-7880, VGA: ATI-264VT2 RAM:   64 MB up to 1024 MB 64- or 128 MB EDO modules 168 pin Cache:   First-level cache 16 kB, Second-level cache 512 KB of cache memory internal to the Pentium Pro module Support:   floppy, ultra-wide and ultra-narrow SCSI Connectors:   1x VGA, 1x parallel port, 1x remote, 2x serial, kbd & mouse, SCSII hard discs, floppy disc, SCSI CD-ROM Interface:   3x EISA (8.33 MHz) and 5x PCI (33 MHz) 64-bit Data bus, 32-bit Address bus OS support:   MS WIN NT Size:   407 x 330 mm DOCUMENTATIONS: service manual