Dell OptiPlex 9020 Owner's Manual - Mini Tower - Page 52

Table 19. Network Feature Integrated Table 20. System Information Feature System chipset DMA Channels Interrupt Levels BIOS Chip (NVRAM) Table 21. Expansion Bus Feature Bus Type Bus Speed Table 22. Cards Feature PCI: Mini-Tower Small Form Factor Ultra Small Form Factor PCI Express x1: Mini-Tower Small Form Factor Ultra Small Form Factor PCI-Express x16: Mini-Tower Small Form Factor Ultra Small Form Factor Mini PCI Express: 52 Specification Intel I217LM Ethernet capable of 10/100/1000 Mb/s communication Specification Intel 8 series Express chipset two 8237 DMA controllers with seven independently programmable channels Integrated I/O APIC capability with 24 interrupts 12 MB Specification PCIe gen2, gen3 (x16), USB 2.0, and USB 3.0 PCI Express: • x1-slot each direction speed -500 MB/s • x16-slot each direction speed-16 GB/s SATA: 1.5 Gbps, 3.0 Gbps, and 6 Gbps Specification up to one full-height card none none up to three full-height cards up to two low-profile cards none up to two full-height cards up to two low-profile cards none