Windows 7 hdd pio dma robot mode. Transmission modes. Enable DMA mode

1. Open Device Manager.
You can also do this by right-clicking the mouse on "My Computer" (My Computer), select the "Disk Attachments" (Hardware) tab, then click the "IDE" (Select Device Manager) button.

2. Select the "IDE ATA/ATAPI controller (IDE ATA/ATAPI Controllers)" section and double-click "Primary IDE Channel".

3. Open the bookmark " Additional parameters» (Advanced Settings), invert the parameter «Device 1» (Device 1).
It is quite possible that your in-line installation is “PIO”.

4. Install DMA if available (DMA if available).

5. After the completion of all diy revantaging the computer.

If you are adding to the Secondary IDE Channel, repeat the same steps for the Secondary IDE Channel.

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How the computer is repaired galmuvati, more koristuvachiv, in first line, repair the fault on the processor, operational memory or a video card, but absolutely forget about those that hard drive No less important is the node of the computer and the problems of lowering the speed of the robotic operating system associated with it.

Hard Disk Job Modes

The HDD has the ability to work with data in two modes: the old PIO and the new DMA. The stench is cardinally inspired by the principle of its own work, obviously, swidkistyu obrobki data. So in the PIO mode, all data is processed for the help of the processor, which is very navantage and, as a result, lead to a drop in the system productivity. And the axis of the DMA mode is the same as hardware processing of data, with some changes in speed, the CPU does not take part in this process.

Mimovilne Windows switch to PIO mode and signs of that

Windows for locking works from HDD in standard DMA mode, but sometimes through specific pardons it switches to PIO mode on its own. Moreover, adding DMA back is even more problematic and difficult in standard ways practically impossible. Typical signs that Windows has switched to working with a hard drive in PIO mode:

Falling speed of robots from HDD for a few times;
Povіlna shvidkіst robotic system pіd hour of disk operations;
Overworld processor occupancy (80-90%) for an hour of work with a hard disk;
The system began to "galmuvati" sharply. For a year ago everything was fine, and then problems were sharply brought up.

At the moment hard drive - tse same weak spot all systems and systems that fall in yogo swidkosti robots inspire twice and lead to catastrophic consequences. In order to change the connection, so that Windows effectively switched to working with a hard disk in the correct PIO mode, you need to step forward:

1. Right-click on the icon "My computer" and select the item "Keruvannya";

2. Open the controller's socket and find the channel to which the hard disk is connected;
3. Press the mouse button on the new right, go to “Vlastivosti” and go to “Additional parameters”;
4. Take a look at the streaming mode row. If it says “DMA Mode”, then everything is fine, but if it says “PIO Mode”, then you will have to do some awkward operations and turn the dial to the shortest work mode.

Enable DMA mode

Truly, one can be reached in two ways. The first of them to finish is simple and you need to see the wrong working attachment, and then re-advantage the computer. If Windows automatically install it again, then the robot mode will be added again to switch to DMA.

For some reason you don't want to enable DMA the first way, or you might need to report a little more effort and tweak the registry editor. Try this:

1. Press Win + R and instruct in a row, so that the command appears regedit;
2. Cross the road HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\(4D36E96A-E325-11CE-BFC1-08002BE10318);

1. Find row MasterDeviceTimingModeAllowed.
2. As in the value column of this row, it says 0x00000001f, which means that your hard disk is actually working in PIO mode;
3. Change value to 0xffffffff and restart computer.

If so, your hard drive will switch to DMA mode again, and the speed of your robotic system will increase dramatically.

Trivaliy camp stability early chi pizno shattering neperebachuvane that wondrous axis and such a moment has come. A couple of days ago, when copying a file from one physical disk to another, it was raptly mentioned that the speed is catastrophically low - 4-6 Mb / s, instead of 50-90 Mb / s (corrected for fragmentation). I marvel at the interest of the CPU - one core is occupied by a rework, everything is clear - the transfer disk is in PIO mode.

Pochatkov configuration: ASUS P5Q, 4 x 1 Gb SATA drives, 2 x 1.5 Gb SATA drives, no RAIDs, Windows XP SP3. I tried the disk in UDMA mode, and I decided to test it after installation. Device Manager -> IDE controllers -> channel and look at “current transfer mode”. In the picture, the attachments work in the UDMA mode, in my opinion I have another attachment in the PIO mode, but I didn’t take this picture. To understand who is on which channel, switch the Device Manager view to View -> Devices by Connection.

Wanting SATA drives, controllers in Device Manager-i - ATA. On the right, in the fact that in the BIOS SATA controllers for locking up pretend to be ATA controllers, in such a situation, additional new AHCI drivers are not needed. Switching to AHCI mode can be painless, it doesn’t interfere with the logical organization of data, it only requires reliable drivers. In AHCI mode, the NCQ trim is activated (HDD command reordering) and, in general, the productivity is somewhat improved, but not much and the hot swap trim is still added.

Versions possible reasons:

1) Shchos іz train.
2) Schos іz drivers, zbіy chi conflict.
3) From HDD.

Another system is Windows 7, I'm trying to figure out how to use disks in UDMA modes again, and it's already working normally. I marvel at the magazine, I don’t tell anyone about the problem with disks, I marvel at the SMART diagnostics - everything is ok, there are no conflicts in the outbuildings, everything is good. I take the rest of the drivers from ASUS. I'm writing down old number versions Intel drivers ICH10R, I put a new one. To be put pіdozrilo shvidko, zreshtoj not novivsya. I manually update the ICH10R drivers via INF files, install them, but the problem disappears. I'm going to Intel, downloading the newest version, and installing nothing again. It’s clear that their drivers are updated as soon as possible if the drivers are not allowed, so that you need to force the secret key - overlall, try, update, but don’t solve the problem. I change the cable, I viim, I embed the disk - it does not help. Promіzhny pіdbag- Zalizo works, the new software does not help.

I know in Microsoft's article: “After a few CRC pardons appear, or the end of the hour, disks with IDE ATA and ATAPI interfaces will change the PIO mode” . Write, as if there were failures in transmission over UDMA, the system sequentially lowers the modes right up to PIO mode (or immediately) and freezes the camp! To turn back, try to see the controller from the Device Manager and regenerate as soon as possible. On the price not pishov, tk. being afraid that the wine might not regenerate (we wrote about it here), we will follow it in another way, we will describe it there and more in other places.

Solution. Enter the registry key "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControl lSet\Control\Class\(4D36E96A-E325-11CE-B FC1-08002BE10318)", it will contain the 0000, 0001 and so on. The stench is allowed to attach to Device Manager-i. Only channels can chirp us, I will name marveling at DriverDesc, in to this particular type Primary IDE Channel.

We respect MasterDeviceTimingModeAllowed and SlaveDeviceTimingModeAllowed - they set the mask of allowed modes, like 0xffffffff, otherwise, everything is allowed, but like 0x1f, then only PIO mode. I have a problem on Slave. The threading modes themselves are taken from the MasterDeviceTimingMode and SlaveDeviceTimingMode, they are changed (you can know the sense of numbers from the measure). MS prompts the attack on the step - insert the addendum key ResetErrorCountersOnSuccess (DWORD) = 1 and switch over. I tried it, but it didn’t give anything, it gave only those that have the UserSlaveDeviceTimingModeAllowed mode, which can be thrown into 0x1f. I turned it around at the Device Manager, but I think it’s possible and here I’ll manually insert 0xffffffff. Then I showed the SlaveDeviceTimingModeAllowed = 0xffffffff, revantaged and voila!, everything worked. At once, I think the need to bulo zrobiti is less on the foot (problem on the Slave):

UserSlaveDeviceTimingModeAllowed = 0xffffffff, SlaveDeviceTimingModeAllowed = 0xffffffff, ResetErrorCountersOnSuccess = 1 and change.

On the offensive little one, the bag became a register after re-advancement. The modes are the same now, the masks have been saved and in the Device Manager the picture is more like on the cob post.

Now about the reason. As for the MS statistics, one of the reasons for the correction of the driver was that the HDD start time was insufficient (for Win2000 - 4 sec, it took 10 sec) and there was a problem at times when the disks went to sleep. I've been constantly victorious, having fixed the breaking of disks due to idleness after 2 years, which led sometimes to a sluggish rollover, if the deacons of the program wanted to climb a crack on a sprat of roses. I think that for such a scenario, a timeout is still necessary for moving and fixing the crash, which calls before the inclusion of UDMA. Now I’m moving in the wake of the inclusion of disks, let me practice, before that part of the inclusion, that inclusion can be more mischievous, lower to bring melancholy.

Hello to all readers of the blog. In the article, let's talk about how to improve the productivity of the system. Often in coristuvachs, the problem is more proper work computer, especially pіd hour record i at read discs, or simply unprimed “galma” of the system for an hour of work and interest. Why the system freezes read
The reasons for blaming this can be impersonal, today the proponous look to make it wider - not the wrong mode of work CD/DVD - ROM or hard drives so let's talk about PIO and DMA.How to turn over a hard disk for pardons and read them

What is the essence and difference of PIO and DMA.

PIO and DMA- tse two modes robotic zhorsty discs, have a vipadku be-what kind of drive.
PIO (Programmable Input/Output)- already outdated mode, it is necessary for you to work
zadiyati the central processor, which leads to a significant waste of productivity.
DMA (Direct Memory Access) - current method, which mine processor i
savage without middle to operational memory increase productivity and get rid of annoying "galms".
DMA mode in other variants has long been victorious in operating systems Windows 7, 8, and also 10, however on Windows XP the situation often traps DMA is automatically switched to PIO And now to introduce yoga by the most powerful methods, do not go into it. Through what is the situation blamed?
Windows XP is proven mechanism pardon control, which is the hour of reading hard drive otherwise, the drive is often blamed for pardons, then the system will automatically switch to the correct mode, where it is smaller. prote, Windows XP You can transfer to this mode and attachments, which works normally.
How to get a pardon Windows read

And so, we checked the modes of operation of all drives, so that the system did not tattle.

1 . Launching the console "Keruvannya computer"- Right click on "My computer"

First, try to disable the pardon control system.
For whom at the gіlci registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdfs\,
create a key ErrorControl and set the same value 0.

How to speed up that remembrance Windows Productivity 10, read
How fast is the transfer of information in computers, read
I support this article to help you set up the correct modes PIO and DMA that increase the overall productivity of the system.

To transfer between a hard drive and PC memory, two main modes are used:

program input / output mode (Programmed Input / Output, PIO);

direct memory access mode (Direct Memory Access, DMA).

pio mode

In PIO mode, skin bytes of information from the hard disk are first read by the central processor and then written to the RAM. Depending on the trivality of the reading cycle and the number of sectors that are transferred in one cycle to the disk, the PIO modes (PIO Mode 0), PIO1, PIO2, PIO3, PI04, PI05 are distinguished.

dma mode

PIO modes are viable in single-tasking operating systems, when the computer's processor reads or writes data to the buffer memory accumulating on hard disks of the IDE or EIDE standards, and then the data is transferred to the RAM. For richly tasked operating systems, it is possible to add modes of direct access to operative memory (Direct Memory Access, DMA). The introduction/viewing of data in this mode is stored in the RAM of the PC without the participation of the CPU. This process is performed under the control of the controller accumulating on hard disks at pauses between CPU recovery to operational memory, which will reduce the speed of data transfer, but save the processor hour. For the implementation of DMA modes, on the RU side, you need special controllers and drivers.

DMA modes are divided into single-word (Singleword) and multiple-word (Multiword) modes depending on the number of words that are transmitted in one cycle of work from the system bus.

Serial data (sata)

Further, the increase in the speed of transmission through the parallel ATA interface called out technical complexity. In addition, the PC was not plugged into a wide 40-core (or 80-core) cable, which crossed the circulation around the middle of the case and the 46 cm fence.

Tom in 1999. The Serial ATA Working Group was created to create a serial ATA interface - Serial ATA (SATA). 2001 Representation Interface that demonstrating the speed of data transmission - 150 MB / s.

In addition, for connecting dekilkoh attachments (HDD, drive CD-ROM, DVD-ROM, etc.) there will be no topology type "zirka" (if skin attachments need to be identified as Master or Slave), but point-to-point topology, if The skin attachment will be connected directly to the host adapter (only for SCSI attachments).

SCSL (Small Computer System Interface, system interface of small computers) - the most universal and efficient interface, lower IDE. However, this hardware implementation is significantly more expensive than the implementation of the IDE interface. The SCSI interface can be clearly outperformed when working with video, as well as when using a CD-ROM drive in a richly tasked operating environment or as a storage device.

Communication between SCSI devices and I/O bus (such as ISA, PCI, VLB) is established via the Internet bus behind the Host adapter. Attachments, connected to the SCSI bus, interact with each other not directly, but through the SCSI controllers.