Acer Aspire E1-521 Notebook Service Guide
Page 40
... 3C0 - 3DF 3E0 - 3E1 System Function (Shipping Configuration) DMA controller no. 1 & PCI bus Motherboard resources no. 1 Interrupt controller no. 1 Unused Unused Motherboard resources no. 2 System timer Unused Standard PS/2 Keyboard System speaker Microsoft ACPI-Compliant Embedded Controller no. ...PS/2 Keyboard Microsoft ACPI-Compliant Embedded Controller no. 2 System CMOS/RTC Motherboard resources no. 3 Motherboard resources no. 4 DMA controller no. 2 Motherboard resources no. 5 Unused Interrupt controller no. 2 Motherboard resources no. 6 DMA controller no. 3 Unused Numeric data processor ...
... 3C0 - 3DF 3E0 - 3E1 System Function (Shipping Configuration) DMA controller no. 1 & PCI bus Motherboard resources no. 1 Interrupt controller no. 1 Unused Unused Motherboard resources no. 2 System timer Unused Standard PS/2 Keyboard System speaker Microsoft ACPI-Compliant Embedded Controller no. ...PS/2 Keyboard Microsoft ACPI-Compliant Embedded Controller no. 2 System CMOS/RTC Motherboard resources no. 3 Motherboard resources no. 4 DMA controller no. 2 Motherboard resources no. 5 Unused Interrupt controller no. 2 Motherboard resources no. 6 DMA controller no. 3 Unused Numeric data processor ...
Acer Aspire E1-521 Notebook Service Guide
Page 41
... - 3FF Unused 400-4CF Motherboard resources no. 7 4D0-4D1 Motherboard resources no. 8 4D6 Motherboard resources no. 9 680-6FF Motherboard resources no. 10 77A Motherboard resources no. 11 840-847 Motherboard resources no. 12 C00-C01 Motherboard resources no. 13 C14 Motherboard resources no. 14 C50-C52 Motherboard resources no. 15 C6C Motherboard resources no. 16 C6F Motherboard resources no. 17 CD0...
... - 3FF Unused 400-4CF Motherboard resources no. 7 4D0-4D1 Motherboard resources no. 8 4D6 Motherboard resources no. 9 680-6FF Motherboard resources no. 10 77A Motherboard resources no. 11 840-847 Motherboard resources no. 12 C00-C01 Motherboard resources no. 13 C14 Motherboard resources no. 14 C50-C52 Motherboard resources no. 15 C6C Motherboard resources no. 16 C6F Motherboard resources no. 17 CD0...
Acer Aspire E1-521 Notebook Service Guide
Page 98
.... Refer to confirm the computer is experiencing intermittent loss of BIOS Settings If the computer is virus free. 3. If the computer is ok. 3. Replace the Motherboard. 7. Check if the test utility is experiencing HDD or ODD BIOS information loss, disconnect and reconnect the power and data cables between devices. 4. If HDD...
.... Refer to confirm the computer is experiencing intermittent loss of BIOS Settings If the computer is virus free. 3. If the computer is ok. 3. Replace the Motherboard. 7. Check if the test utility is experiencing HDD or ODD BIOS information loss, disconnect and reconnect the power and data cables between devices. 4. If HDD...