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I have a very old Dell Inspiron 1150 and recently just put a new hard drive into it. It runs very slow but i have a gig of ram. I looked at the device manager and it says i need a Direct memory access controller drive. Where do i get this??? I have looked everywhere on dell's website

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Direct reminiscence get right of entry to (DMA) is a function of cutting-edge computers and microprocessors that facilitates specific hardware subsystems interior the laptop to get right of entry to device reminiscence for examining and/or writing independently of the considerable processing unit. Many hardware structures use DMA which includes diskpersistent controllers, pics enjoying cards, community enjoying cards, sound enjoying cards and GPUs. DMA is extensively utilized for intra-chip information pass in multi-middle processors, exceedingly in multiprocessor device-on-chips, the place its processing element is provided with a community reminiscence (in many cases called scratchpad reminiscence) and DMA is used for moving information between the community reminiscence and the biggest reminiscence. computers that have DMA channels can pass information to and from contraptions with much less CPU overhead than computers without a DMA channel. further a processing element interior a multi-middle processor can pass information to and from its community reminiscence devoid of occupying its processor time, overlapping computation and information pass. devoid of DMA, making use of programmed enter/output (PIO) mode for verbal replace with peripheral contraptions, or load/keep classes interior the case of multicore chips, the CPU is usually totally occupied for the full length of the examine or write operation, and is for this reason unavailable to accomplish different artwork. With DMA, the CPU could start up up the pass, do different operations at an identical time as the pass is in progression, and acquire an interrupt from the DMA controller as quickly as the operation has been finished. it particularly is very functional in actual-time computing purposes the place not stalling at the back of concurrent operations is serious. yet another and suitable application section is countless varieties of pass processing the place it is considerable to have information processing and pass in parallel, as a fashion to realize adequate throughput.

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I suggest that you go to Dell site and download and install the latest bios for your computer. If it still does not work, then it is hard to say why not.

Of course, make sure that your boot drive is set to Master (unless it is a SATA drive) and the second one to Slave!!

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by (140 points)

Direct reminiscence get admission to (DMA) is a characteristic of cutting-edge desktops and microprocessors that enables particular hardware subsystems in the laptop to get admission to device reminiscence for examining and/or writing independently of the fundamental processing unit. Many hardware systems use DMA which contains disk stress controllers, pictures playing cards, community playing cards, sound playing cards and GPUs. DMA is additionally used for intra-chip documents circulate in multi-middle processors, rather in multiprocessor device-on-chips, the place its processing factor is provided with a community reminiscence (often called scratchpad reminiscence) and DMA is used for moving documents between the community reminiscence and the main considerable reminiscence. desktops that have DMA channels can circulate documents to and from instruments with much less CPU overhead than desktops without DMA channel. further a processing factor interior a multi-middle processor can circulate documents to and from its community reminiscence without occupying its processor time, overlapping computation and documents circulate. without DMA, utilising programmed enter/output (PIO) mode for verbal replace with peripheral instruments, or load/save classes related to multicore chips, the CPU is many times totally occupied for the finished era of the study or write operation, and is subsequently unavailable to accomplish different paintings. With DMA, the CPU would initiate the circulate, do different operations at the same time as the circulate is in progression, and get carry of an interrupt from the DMA controller as quickly as the operation has been finished. it quite is rather useful in genuine-time computing purposes the place no longer stalling at the back of concurrent operations is extreme. yet another and appropriate application section is varied varieties of circulation processing the place that's necessary to have documents processing and circulate in parallel, as a fashion to realize sufficient throughput.

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