Motherboard Dma Controller Error
The PC motherboard dma controller failed Guide Tip Jar. Visa/MC/Paypal accepted. View over 750 motherboard system timer failure of my fine art photos any time for free at DesktopScenes.com! dma controller error fatal error [ The PC Guide | Troubleshooting and Repair Guide | The Troubleshooting Expert | Troubleshooting The System Overall | Troubleshooting Boot-Time Error Messages ] DMA Errors
Explanation: The system has detected an error associated with the direct memory access (DMA) controller(s) on the system motherboard. Diagnosis: This is most likely a motherboard problem, but it might be caused by a bad expansion card as well. If the DMA controller number is supplied as part of the error message, that might help narrow down the DMA channel where the problem was detected, if applicable. DMA controller #1 handles DMA channels 0 to 3, and controller #2 handles channels 5 to 7 (channel 4 is the cascade between the two controllers). Recommendation: Troubleshoot as a generic expansion card issue. Troubleshoot the motherboard. Home - Search - Topics - Up The PC Guide (http://www.PCGuide.com) Site Version: 2.2.0 - Version Date: April 17, 2001© Copyright 1997-2004 Charles M. Kozierok.All Rights Reserved. Not responsible for any loss resulting from the use of this site. Please read the Site Guide before using this material. Custom SearchDiagnosis: In almost all cases, this a motherboard problem, but it might can also be caused by a bad expansion or add-in card as well. If the DMA controller number is supplied as part of the error message, that may help you narrow down the DMA channel where the problem was detected, if applicable. DMA controller #1 handles DMA channels 0 to 3, and controller #2 handles channels 5 to 7 (channel 4 is the cascade between the two controllers). Recommendation: First, troubleshoot as http://www.pcguide.com/ts/x/sys/booterrGBER19-c.html a generic expansion or add-in card issue. Second, troubleshoot the motherboard itself. More Information on DMA Channels Direct Memory Access (DMA) Channels Direct memory access (DMA) channels are basically what the name implies, the system pathway used by devices to transfer information directly to and from memory. DMA channel problems are not nearly as frequent as IRQ issues, however they do http://www.dewassoc.com/support/bios/errors/dma_controllers.htm occur. This is probably due to the fact that there are fewer of them and they are used by far fewer devices. Hence they usually cause fewer problems with system setup. Conflicts on DMA channels can often cause very strange system problems and at times can be very difficult to diagnose. DMA channels are used most commonly by floppy and tape drives and sound cards. In early computers, the processor did almost everything, running programs, transferring data to and from peripherals etc. Unfortunately, having the processor perform these transfers is very inefficient, as it is then unable to do much else. The development of DMA channeling enabled the devices to leave the processor out of the loop, thereby allowing it to do other work and the peripherals to transfer data themselves, which obviously leads to increased performance. Special channels were created, along with their controlling circuitry, that allowed the transfer of information without the processor controlling every aspect of the transfer. This circuitry is normally part of the system chipset on the motherboard. Note that DMA channels are only on
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