Hood Sensor

237

System Board

238

Rear Fan

240

Changing from Desktop to Tower Configuration

242

Port Cover

243

Power Supply, External

244

Appendix A

Battery Replacement

245

Appendix B

Power Cord Set Requirements

248

General Requirements

248

Japanese Power Cord Requirements

248

Country-Specific Requirements

249

Appendix C POST Error Messages

250

POST Numeric Codes and Text Messages

251

Interpreting POST Diagnostic Front Panel LEDs and Audible Codes

259

Appendix D

Troubleshooting Without Diagnostics

263

Safety and Comfort

263

Before You Call for Technical Support

263

Helpful Hints

264

Solving General Problems

266

Solving Power Problems

270

Solving Diskette Problems

272

Solving Hard Drive Problems

275

Solving Media Card Reader Problems

278

Solving Display Problems

280

Solving Audio Problems

284

Solving Printer Problems

286

Solving Keyboard and Mouse Problems

288

Solving Hardware Installation Problems

290

Solving Network Problems

292

Solving Memory Problems

296

Solving Processor Problems

297

Solving CD-ROM and DVD Problems

298

Solving USB Flash Drive Problems

300

Solving Front Panel Component Problems

302

Solving Internet Access Problems

302

Solving Software Problems

305

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HP 6200 Pro A2W44UT#ABA, 6200 Pro H3D90USABA, 6200 PRO QN084AW#ABA, 8200 A2W54UT#ABA manual Appendix C Post Error Messages 250