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Aspire TC-780 Desktop Computer Service Guide
System Configuration
CMOS
Message
Description
DMA-1 Error
Error initializing primary DMA controller. This is a fatal error, often indication a
problem with system hardware.
DMA-2 Error
Error initializing secondary DMA controller. This is a fatal error, often indication a
problem with system hardware.
DMA Controller Error
POST error while trying to initialize the DMA controller. This is a fatal error, often
indication a problem with system hardware.
Checking NVRAM...
Update Failed
BIOS could not write to the NVRAM block. This message appears when the FLASH
part is write-protected or if there is no FLASH part (System uses a PROM or
EPROM).
Microcode Error
BIOS could not find or load the CPU Microcode Update to the CPU. This message
only applies to INTEL CPUs. The message is most likely to appear when a brand
new CPU is installed in a mainboard with an outdated BIOS. In this case, the BIOS
must be updated to include the Microcode Update for the new CPU.
NVRAM Checksum
Bad, NVRAM
Cleared
There was an error in while validating the NVRAM data. This causes POST to clear
the NVRAM data.
Resource Conflict
More than one system device is trying to use the same non-shareable resources
(Memory or I/O).
NVRAM Ignored
The NVRAM data used to store Plug’n’Play (PnP) data was not used for system
configuration in POST.
NVRAM Bad
The NVRAM data used to store Plug’n’Play (PnP) data was not used for system
configuration in POST due to a data error.
Static Resource
Conflict
Two or more Static Devices are trying to use the same resource space (usually
Memory or I/O).
PCI I/O conflict
A PCI adapter generated an I/O resource conflict when configured by BIOS POST.
PCI ROM conflict
A PCI adapter generated an I/O resource conflict when configured by BIOS POST.
PCI IRQ conflict
A PCI adapter generated an I/O resource conflict when configured by BIOS POST.
PCI IRQ routing table
error
BIOS POST (DIM code) found a PCI device in the system but was unable to figure
out how to route an IRQ to the device. Usually this error is causing by an
incomplete description of the PCI Interrupt Routing of the system.
Timer Error
Indicates an error while programming the count register of channel 2 of the 8254
timer. This may indicate a problem with system hardware.
Refresh timer test
failed
BIOS POST found that the refresh timer hardware failed to pass the Refresh
Retrace Test.
Interrupt Controller-1
error
BIOS POST could not initialize the Master Interrupt Controller. This may indicate a
problem with system hardware.
Interrupt Controller-2
error
BIOS POST could not initialize the Slave Interrupt Controller. This may indicate a
problem with system hardware.
Message Displayed
Description
CMOS Date/Time Not
Set
The CMOS date and/or time are invalid. This error can be resolved by readjusting
the system time in AMIBIOS Setup.
CMOS Battery Low
CMOS battery is low. This message usually indicates that the CMOS battery needs
to be replaced. It could also appear when the user intentionally discharges the
CMOS battery.
CMOS Settings
Wrong
CMOS settings are invalid. This error can be resolved by using AMIBIOS Setup.
Summary of Contents for Aspire TC-780
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