Error In The Dma Controller
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Dma Controller Error Fatal Error System Halted
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Dma Controller Design
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Dma Controller Failure
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 dma controller verilog code 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 Searchfirst visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from dma controller tutorial the selection below. Results 1 to 4 of 4 Thread: Dma controller fatal error Tweet Thread dma controller pdf Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode April 20th, 2009,05:02 dma controller on motherboard PM #1 HipHoper View Profile View Forum Posts Registered User Join Date Apr 2003 Location Israel Posts 1,747 Dma controller fatal error Got this p4 2.8 478 computer from a client, Who complained about computer freezing when he connects to http://www.pcguide.com/ts/x/sys/booterrGBER19-c.html the internet. Ran a few loop test (prime 95 + directx game + video running) for several hours which went fine. Tried to use windows update and the computer froze. When I pressed reset, in the boot screen (text screen before HD access to winxp) I got this DMA CONTROLLER FAILURE FATAL ERROR message. I suspect it's the motherboard. Any ideas ? Thanks Reply With Quote April 20th, 2009,05:35 PM #2 geoscomp View Profile View Forum Posts Visit Homepage Registered http://forums.windrivers.com/showthread.php?83257-Dma-controller-fatal-error User Join Date Apr 2002 Location Minnesota Posts 2,340 Most likely is the motherboard if you've checked for the obvious..loose connections, something shorting to the case, etc. Are you getting any bios beep code information when you turn it on? Computer Rescue Service "those who do not remember history are condemned to repeat it." Reply With Quote April 20th, 2009,05:41 PM #3 Platypus View Profile View Forum Posts Intel Mod Join Date Jan 2001 Location Australia Posts 5,783 Yes, a DMA Controller Failure indicates the BIOS has been unable to initialize the DMA controller. Most likely a motherboard fault, although not necessarily the DMA controller itself - could be a symptom brought on by bad capacitors (motherboard or PSU). Check motherboard for signs of bad caps, & try another PSU to eliminate that as a cause. Reply With Quote April 21st, 2009,03:14 AM #4 HipHoper View Profile View Forum Posts Registered User Join Date Apr 2003 Location Israel Posts 1,747 motherboard is 1 1/2 year old and seems OK. Replaced memory moudle (ddr400) and it seems to work fine for the past few hours. Will return it to the client so she can work few days on it and let me know if it's fine. Thanks Plat and Geo for your help Reply With Quote Quick Navigation Tech-To-Tech Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums Drivers by Category BIOS/Motherboard Drivers CD-ROM/CDR(-W)/DVD Drivers D
Display results as threads More... Useful Searches Recent Posts Menu Forums Forums Quick Links Search Forums Recent Posts Menu Log in Sign up AnandTech Forums: Technology, Hardware, Software, and Deals Forums > Hardware https://forums.anandtech.com/threads/dma-controller-test-failed.1189913/ and Technology > Computer Help > DMA Controller test failed Discussion in 'Computer Help' started by NKM1118, Nov 8, 2003. NKM1118 Junior Member Joined: Nov 8, 2003 Messages: 1 Likes Received: 0 Can somebody tell me http://www.arm.com/support/faqip/690.html who is correct. I took my laptop in to have the OS upgraded to XP, the tech ran a diagnostics test (why I don't know) and told me the DMA controller was bad and wanted $500.00 dma controller to replace the motherboard. I sent the laptop to a lab that repairs motherboards and they said nothing was wrong that only the DMA controller was looking for a DMA printer and when it didn't find it it gave the error the tech said this is common in laptop diagnostics. Is there a way I can check the DMA controller myself? #1 NKM1118, Nov 8, 2003 lucky9 Senior member Joined: dma controller error Sep 6, 2003 Messages: 557 Likes Received: 0 Easiest to just delete it, probably on the IDE, so in Device Manager just delete it in and reboot. Should find it and "not" find the printer. You can delete about anything in Device Manager and reboot to fix this kind of driver-type issue. You should find whether DMA is enabled in the properties window of the C: drive. If it shows DMA is enabled or you can enable it and reboot and find it still enabled, then it's ok. Open My Computer, right click on the C: drive and choose properties. It's in there somewhere. You may be able to check it in Device Manager too. #2 lucky9, Nov 9, 2003 PrincessGuard Golden Member Joined: Feb 5, 2001 Messages: 1,435 Likes Received: 0 The DMA controller is integrated into modern chipsets so if it really is bad, chances are you wouldn't be able to boot at all. The actual "DMA controller" is only used by legacy ISA devices (such as floppy drives and ECP parallel ports). Hard drives and PCI cards have their own controllers that perform bus mastering, which is a type of DMA that does not use the "DMA controller." Chances are your computer is fine and both techs were f
DMAC handles these configurations.Scenario:DMAC source is a byte-wide peripheral, which carries out single transfers.DMAC destination is a 32-bit wide memory that carries out burst transfersCASE 1: Number of bytes read from the source is not a multiple of 4The number of bytes should always be a multiple of 4.CASE 2:Scenario:Destination bus width = 8 bitBurst size = 16 bytesTransfer count = 15 bytesHow the DMAC handles this scenario depends whether the source and destination are on the same AHB bus or not.If they are on the same AHB bus then the typical sequence will be:Source to Destination:INCR8INCR4INCRINCRINCRIf they are on different AHB buses then how the DMAC handles it will depend on a number of factors that have been mentioned before:The amount of data to be transferred;The width of the transfer;The space (or amount of data) in the channel's FIFO;Size of burstThe DMAC will build/break up the transfers appropriately based on the information programmed into the DMAC.We have a peripheral that has a byte-wide receive register but is on a 32-bit bus. How does the DMAC handle this situation?Ideally, you should ensure that you use peripherals whose natural word size is 32 to take full advantage of the 32-bit bus used by the DMAC.However, if you do have a peripheral whose natural word size is not 32 and it is only receiving data, then the DMAC duplicates this data internally.Scenarios on Transfer TypesPeripheral-to-Memory Receive Transfers with Peripheral as Flow ControllerIf the source of a DMA is in memory and the destination is a peripheral, then will the DMAC get data from the memory before the peripheral requests it?No, the DMAC will only get data from memory when the peripheral requests the data.If a DMAC gets an error from a source access, will it stop the destination access for this channel, or will it empty its FIFO before stopping?If an error is flagged during a DMA transfer by a peripheral, the DMA controller automatically disables the DMA stream and any data in the FIFO will be lost. For an error to occur (this will be signalled on the HRESP signal) there would have to be something majorly wrong. The channel will be disabled and the DMA controller will generate an interrupt to your interrupt controller.If there are a number of