Service Guide
Page 52
... or modified incorrectly System RAM Failed System RAM failed at offset nnn configured properly 1. Replace the drive. Replace the mouse. 3. No action required. System CMOS Checksum Bad CMOS is turned on Run Setup. Home Maintenance and Service Guide Compaq Presario 4900, 5000, & ...Upper Memory Blocks, indicating released segments of diskette in the system bus 1. Incorrect Drive A Type Type of the BIOS Video BIOS successfully copied to Shadow RAM Status message. Invalid NVRAM Media Type Problem with NVRAM (CMOS) access Replace the system board. Keyboard Controller Keyboard...
... or modified incorrectly System RAM Failed System RAM failed at offset nnn configured properly 1. Replace the drive. Replace the mouse. 3. No action required. System CMOS Checksum Bad CMOS is turned on Run Setup. Home Maintenance and Service Guide Compaq Presario 4900, 5000, & ...Upper Memory Blocks, indicating released segments of diskette in the system bus 1. Incorrect Drive A Type Type of the BIOS Video BIOS successfully copied to Shadow RAM Status message. Invalid NVRAM Media Type Problem with NVRAM (CMOS) access Replace the system board. Keyboard Controller Keyboard...
Service Guide
Page 60
...use for option cards. FDFFFFFF FE000000 - FFFDFFFF Unused/System ROM aliases System ROM (alias) Unused 128 K FFFE0000 - System BIOS ROM shadow image Standard Extended Memory 64 M 60 M 512 K 01000000 - 04FFFFFF 05000000 - ...RAM Video ROM 32 K 64 K 48 K 000C8000 - 000CFFFF 000D000 - 000DFFFF 000E0000 - 000EBFFF Legacy USB Device Header (when legacy support enabled) Unused Unused (Not available for UMBs.) 16 K 64 K 15 M 000EC000 - 000EFFFF 000F0000 - 000FFFFF 00100000 - 00FFFFFF 16-bit cacheable, shadowable, read-only memory. Home Maintenance and Service Guide Compaq Presario...
...use for option cards. FDFFFFFF FE000000 - FFFDFFFF Unused/System ROM aliases System ROM (alias) Unused 128 K FFFE0000 - System BIOS ROM shadow image Standard Extended Memory 64 M 60 M 512 K 01000000 - 04FFFFFF 05000000 - ...RAM Video ROM 32 K 64 K 48 K 000C8000 - 000CFFFF 000D000 - 000DFFFF 000E0000 - 000EBFFF Legacy USB Device Header (when legacy support enabled) Unused Unused (Not available for UMBs.) 16 K 64 K 15 M 000EC000 - 000EFFFF 000F0000 - 000FFFFF 00100000 - 00FFFFFF 16-bit cacheable, shadowable, read-only memory. Home Maintenance and Service Guide Compaq Presario...