The Optiplex 990 Service Manual provides step-by-step methods for repairing or replacing internal parts. This repair-service guide includes text and high-quality graphics for disassembly/reassembly instructions, repair and upgrade procedures, part replacement notices, service information, troubleshooting, software updating, and adjustments/corrections. These detailed manuals are utilized by professional technicians and can assist in troubleshooting and repairing your desktop PC. Each manual is fully illustrated with pictures and offers printable pages for convenience. Whether at home, the office, or a repair shop, you can use this guide to perform your own repairs and save money.
Repair your desktop PC and save money.
Earn money by repairing others' desktop PCs.
Use this guide to modify your desktop PC.
Gain knowledge about your desktop PC's internal parts.
