Dell Precision T3400 User's Guide - Page 31

9 Rear Quad USB 2.0 connectors (4) 10 serial connector 11 keyboard connector Use the back USB connectors for devices that typically remain connected, such as printers and keyboards. NOTE: It is recommended that you use the front USB connectors for devices that you connect occasionally, such as flash memory keys or cameras, or for bootable USB devices. Connect a serial device, such as a handheld device, to the serial port. The default designations are COM1 for serial connector 1 and COM2 for the optional serial connector 2. For more information, see "System Setup Options" on page 82. If you have a PS/2 keyboard, plug it into the purple keyboard connector. If you have a USB keyboard, plug it into a USB connector. Specifications NOTE: Offerings may vary by region. For more information regarding the configuration of your computer, click Start→ Help and Support and select the option to view information about your computer. Processor Microprocessor types Cache System Information Chipset Data bus width Address bus width DMA channels Interrupt levels BIOS chip (NVRAM) Intel® Core™ 2 Duo processors Intel Core 2 Quad processors Intel Core 2 Extreme processors 1 MB minimum up to 12 MB (depending on your processor) Intel X38 Express Chipset/ICH9R 64 bits 32 bits eight 24 8 Mb About Your Computer 31