The physical address and the byte in error are used to determine a failing SIMM module. Socket locations are silkscreened on the component side of the CPU and 3U Memory Boards, and on the solder side of the 9U Memory Board. This section includes examples of errors and charts for the Sun 4300 CPU, 3U Memory Boards and 9U Memory Boards.
The location of the failing SIMM module is U1702.
The location of the failing SIMM module is U1702.
The location of the failing SIMM module is U1306.
| ADDRESS (Dec) | ADDRESS (Hex) | BANK | BYTE | SOCKET |
| 0-4MB | 000000-3fffff | 0 | 0 | U1300 |
| 0-4MB | 000000-3fffff | 0 | 1 | U1301 |
| 0-4MB | 000000-3fffff | 0 | 2 | U1302 |
| 0-4MB | 000000-3fffff | 0 | 3 | U1303 |
| 4-8MB | 000000-7fffff | 1 | 0 | U1304 |
| 4-8MB | 000000-7fffff | 1 | 0 | U1305 |
| 4-8MB | 000000-7fffff | 1 | 1 | U1306 |
| 4-8MB | 000000-7fffff | 1 | 1 | U1307 |
| ADDRESS (Dec) | ADDRESS (Hex) | BANK | BYTE | SOCKET |
| 8-12MB | 800000-bfffff | 0 | 0 | U1600 |
| 8-12MB | 800000-bfffff | 0 | 1 | U1601 |
| 8-12MB | 800000-bfffff | 0 | 2 | U1602 |
| 8-12MB | 800000-bfffff | 0 | 3 | U1603 |
| 12-16MB | c00000-ffffff | 1 | 0 | U1604 |
| 12-16MB | c00000-ffffff | 1 | 1 | U1605 |
| 12-16MB | c00000-ffffff | 1 | 2 | U1606 |
| 12-16MB | c00000-ffffff | 1 | 3 | U1607 |
| 16-20MB | 1000000-13fffff | 2 | 0 | U1700 |
| 16-20MB | 1000000-13fffff | 2 | 1 | U1701 |
| 16-20MB | 1000000-13fffff | 2 | 2 | U1702 |
| 16-20MB | 1000000-13fffff | 2 | 3 | U1703 |
| 20-24MB | 1400000-17fffff | 3 | 0 | U1704 |
| 20-24MB | 1400000-17fffff | 3 | 1 | U1705 |
| 20-24MB | 1400000-17fffff | 3 | 2 | U1706 |
| 20-24MB | 1400000-17fffff | 3 | 3 | U1707 |
| ADDRESS (Dec) | ADDRESS (Hex) | BANK | BYTE | SOCKET |
| 24-28MB | 1800000-1bfffff | 0 | 0 | U1600 |
| 24-28MB | 1800000-1bfffff | 0 | 1 | U1601 |
| 24-28MB | 1800000-1bfffff | 0 | 2 | U1602 |
| 24-28MB | 1800000-1bfffff | 0 | 3 | U1603 |
| 28-32MB | 1c00000-1ffffff | 1 | 0 | U1604 |
| 28-32MB | 1c00000-1ffffff | 1 | 1 | U1605 |
| 28-32MB | 1c00000-1ffffff | 1 | 2 | U1606 |
| 28-32MB | 1c00000-1ffffff | 1 | 3 | U1607 |
| 32-36MB | 2000000-23fffff | 2 | 0 | U1700 |
| 32-36MB | 2000000-23fffff | 2 | 1 | U1701 |
| 32-36MB | 2000000-23fffff | 2 | 2 | U1702 |
| 32-36MB | 2000000-23fffff | 2 | 3 | U1703 |
| 36-40MB | 2400000-27fffff | 3 | 0 | U1704 |
| 36-40MB | 2400000-27fffff | 3 | 1 | U1705 |
| 36-40MB | 2400000-27fffff | 3 | 2 | U1706 |
| 36-40MB | 2400000-27fffff | 3 | 3 | U1707 |
| ADDRESS (Dec) | ADDRESS (Hex) | BANK | BYTE | SOCKET |
| 8-12MB | 800000-bfffff | 0L | 0 | U1600 |
| 8-12MB | 800000-bfffff | 0L | 1 | U1601 |
| 8-12MB | 800000-bfffff | 0L | 2 | U1602 |
| 8-12MB | 800000-bfffff | 0L | 3 | U1603 |
| 12-16MB | c00000-ffffff | 0H | 0 | U1604 |
| 12-16MB | c00000-ffffff | 0H | 1 | U1605 |
| 12-16MB | c00000-ffffff | 0H | 2 | U1606 |
| 12-16MB | c00000-ffffff | 0H | 3 | U1607 |
| 16-20MB | 1000000-13fffff | 1L | 0 | U1700 |
| 16-20MB | 1000000-13fffff | 1L | 1 | U1701 |
| 16-20MB | 1000000-13fffff | 1L | 2 | U1702 |
| 16-20MB | 1000000-13fffff | 1L | 3 | U1703 |
| 20-24MB | 1400000-17fffff | 1H | 0 | U1704 |
| 20-24MB | 1400000-17fffff | 1H | 1 | U1705 |
| 20-24MB | 1400000-17fffff | 1H | 2 | U1706 |
| 20-24MB | 1400000-17fffff | 1H | 3 | U1707 |
| 24-28MB | 1800000-1bfffff | 2L | 0 | U1800 |
| 24-28MB | 1800000-1bfffff | 2L | 1 | U1801 |
| 24-28MB | 1800000-1bfffff | 2L | 2 | U1802 |
| 24-28MB | 1800000-1bfffff | 2L | 3 | U1803 |
| 28-32MB | 1c00000-1ffffff | 2H | 0 | U1804 |
| 28-32MB | 1c00000-1ffffff | 2H | 1 | U1805 |
| 28-32MB | 1c00000-1ffffff | 2H | 2 | U1806 |
| 28-32MB | 1c00000-1ffffff | 2H | 3 | U1807 |
| ADDRESS (Dec) | ADDRESS (Hex) | BANK | BYTE | SOCKET |
| 32-36MB | 2000000-23fffff | 3L | 0 | U1900 |
| 32-36MB | 2000000-23fffff | 3L | 1 | U1901 |
| 32-36MB | 2000000-23fffff | 3L | 2 | U1902 |
| 32-36MB | 2000000-23fffff | 3L | 3 | U1903 |
| 36-40MB | 2400000-27fffff | 3H | 0 | U1904 |
| 36-40MB | 2400000-27fffff | 3H | 1 | U1905 |
| 36-40MB | 2400000-27fffff | 3H | 2 | U1906 |
| 36-40MB | 2400000-27fffff | 3H | 3 | U1907 |
| 40-44MB | 2800000-2bfffff | 4L | 0 | U2000 |
| 40-44MB | 2800000-2bfffff | 4L | 1 | U2001 |
| 40-44MB | 2800000-2bfffff | 4L | 2 | U2002 |
| 40-44MB | 2800000-2bfffff | 4L | 3 | U2003 |
| 44-48MB | 2c00000-2ffffff | 4H | 0 | U2004 |
| 44-48MB | 2c00000-2ffffff | 4H | 1 | U2005 |
| 44-48MB | 2c00000-2ffffff | 4H | 2 | U2006 |
| 44-48MB | 2c00000-2ffffff | 4H | 3 | U2007 |
| 48-52MB | 3000000-33fffff | 5L | 0 | U2100 |
| 48-52MB | 3000000-33fffff | 5L | 1 | U2101 |
| 48-52MB | 3000000-33fffff | 5L | 2 | U2102 |
| 48-52MB | 3000000-33fffff | 5L | 3 | U2103 |
| 52-56MB | 3400000-1ffffff | 5H | 0 | U2104 |
| 52-56MB | 3400000-1ffffff | 5H | 1 | U2105 |
| 52-56MB | 3400000-1ffffff | 5H | 2 | U2106 |
| 52-56MB | 3400000-1ffffff | 5H | 3 | U2107 |