IBM 689912U Hardware Maintenance Manual - Page 25

001 (continued) For 6275, see page 263. For 6285, see page 269. For 6561 or 6591, see "System Board Removal (Type 6561)" on page 276 or "System Board Removal (Type 6591)" on page 291. For 6862, see page 301. For 6892, see page 310. - Make sure the processor speed setting matches the processor installed in the computer. For 6275, 6285, see page 326. For 6561, 6591, see page 330. For 6862, 6892, see page 363. For 6889, see page 376. For 6893, see page 379. - Set all display controls to the middle position. - Insert the IBM PC Enhanced Diagnostics diskette into drive A. - Power-on all external devices. - Power-on the computer. - Check for the following response: 1. Readable instructions or the Main Menu. Note Type 6275, 6285, 6561, 6591, 6862, 6889, 6892, 6893 computers are default to come up quiet (No beep and no memory count and checkpoint code display) when no errors are detected by POST. To enable Beep and memory count and checkpoint code display when a successful POST occurs: 1. Enable Power on Status in setup. See "Setup Utility Program" on page 220. DID YOU RECEIVE THE CORRECT RESPONSE? Yes No 002 If the Power Management feature is enabled, do the following: 1. Start the Configuration/Setup Utility program (see "Setup Utility Program" on page 220) 2. Select Power Management from the Configuration/Setup Utility program menu. 3. Select APM 4. Be sure APM BIOS Mode is set to Disabled. If it is not, press Left Arrow (←) or Right Arrow (→) to change the setting. 5. Select Automatic Hardware Power Management. 6. Set Automatic Hardware Power Management to Disabled. Service Information 15