What happened to the hard disk upgrade scheme of the old motherboard, and the transfer mode?

The above statements are correct, first of all, the transmission mode is that Southbridge decided (that is, the chipset decided) that the 810 motherboard only supports the transmission mode of ATA66. ATA stands for DMA.

Second, the motherboard will automatically recognize the hard disk, and the hard disk of the ATA100 will be connected to the IDE interface of the ATA66 and will automatically press the ATA66 to transmit. Of course, it must be matched with the 80 hard disk data cables of ATA66, if it is a 40 hard disk data cable, it will be automatically recognized as ATA33, whether you are ATA100 or ATA66 hard disk.

Third, because the speed of the hard disk of the notebook is low, most of them are 5400 rpm and 4200 rpm, and the new ones also have 7200 rpm, so they are not as fast as desktop hard drives, in addition, it is best to fix the hard disk for use.

Q: I often read the introduction of hard drives, sometimes it is ATA 66, and sometimes it is DMA 66, what is the difference between ATA and DMA?

Answer: DMA stands for Direct Memory Access, which means "Direct Memory Access". ATA is IDE, ATA is IDE's more detailed technical specifications, and IDE is just a name for ATA in the field of manufacturing and sales.

An IDE hard drive is a hard drive that uses ATA protocols, technologies, and interfaces. ATA was developed by the National Committee on Information Technology Standards (NCITS) T13 Technical Committee (formerly T10 Technical Committee, later transferred to T13) of the American National Standards Institute (ANSI). It is correctly described in the draft of Serial ATA on its official **, that is, it is the Serial version of ATA ATAPI.

Therefore, HDDs that use the Serial ATA interface are still IDE HDDs. In the future development plan of IDE RAID cards, AMI has also prepared IDE hard disks with Serial ATA interface, that is, IDE hard disk controllers with Serial ATA interface. This shows that ATA 66 represents a hard disk with an IDE interface, and the transfer mode used is DMA 66.

The DMA technology is exclusive to the hard disk of the IDE interface, so both ATA 66 and DMA 66 are talking about the same thing.

The transfer mode of the hard disk can be backward compatible, and it is okay to use it normally.

The transmission mode is determined by Southbridge, and your DMA100 can be used but will run in 66 mode.

The hard disk of DMA100 is connected to the IDE interface of DMA66 and will be automatically transferred according to DMA66 without any problem.

It's okay , you can use DMA133 on your motherboard, it's just that the speed is not 133, but 66,

Here's how:

IDE is ATA mode, which is a parallel transmission mode, a technology popularized 04 years ago, with a theoretical maximum of 133MB per second.

AHCI is SATA mode, serial port transmission mode, new technology, fast transmission speed, theoretical maximum 300MB per second.

The purpose of setting the IDE mode is to install the system that does not inherit the SATA driver, and after installing the system, you must install the SATA driver and then change the working mode back to ahcii, otherwise the hard disk can only play 30% of the performance.

To change the IDE mode to AHCI mode, you need to change it after booting into the BIOS.

There is a fixed button to enter the BIOS brand machine, please read the manual for details, generally F1 F2. Assemble the computer, boot it up, and click the dell key to enter.

Find the SATA option in the BIOS and change it to Save.

That is, the motherboard is not compatible with the hard drive of that model. You update the motherboard BIOS to see if you can solve the problem, if it doesn't work, you can only change to another model of hard drive.

It's not a problem with the hard drive, flash the motherboard BIOS! Let's go to BIOS House and find out!

Western Digital 320G 16M Cache SATA2 HDD...

This display is no problem, no need to set it.

If you set the hard disk transfer mode, you can remove the hard disk and see that there is a jumper head at the interface position, which is 6 coppers.

The place of the needle (IDE hard disk uses this to set the master and slave disk, SATA hard disk uses this to set the transfer mode), generally the factory hard disk will have a connection buckle to buckle the two pins, the default transfer mode, unplug the default is empty is the transfer mode. Here's how Seagate sets it up. I don't know much about Western Digital, but you can look at the label on the hard drive, which explains how to use the jumper.

This only applies to serial hard drives, not parallel port hard drives. In the past, only large hard drives over 500g were available, but now you can take a look and try it if you have one, but there are no intuitive changes. Specifically, you can use the hard disk test software to measure the read and write rate after turning on the computer, generally 60-110MB s is normal.

Generally, hard disks are between 70-90, and only a few supermen can reach 110.

Try to change the data cable or reinstall the system, if it still doesn't work, prepare the silver to go to the computer hospital to flash the firmware!

Since the current hard disks are all serial port hard disks, the ordinary XP installation disk, or the ghost installation disk cannot recognize the hard disk when installing the system, so you have to enter the BIOS to change the hard disk mode to IDE, and the specific modification is.

When the screen appears --- big Lenovo screen--- press F2 to enter BIOS, it is a blue interface, after entering BIOS, select Advanced, U330 is the third on the right, in Y450 it is the second on the right, and then select the SATA option, enter and come out with two options, in Y450 is AHCI

and IDE, select IDE

Press when you are OK. f10, make sure to save and reboot again, and then you can install the system according to the normal installation procedure.

It's best not to change the IDE hard disk, just take the default;

If it is a SATA hard disk, you need to modify the hard disk mode

Turn on the computer, press the del key to enter the CMOS setting interface;

Press the Tab key and arrow keys on your keyboard to enter the Integrated Peripherals settings interface;

Press the arrow key, select Onchip IDE Device, press Enter, and enter the Onchip IDE Divice setting interface;

Press the arrow keys, select sata -mode, press enter, select IDE (or RAID if you want component RAID);

If you want to set it to SATA mode, set SATA MODE to AHCI mode.

On some motherboards, the settings are set on the Onchip PCI Device interface, and the corresponding setting option may be Serial ATA mode

Different motherboards enter the CMOS in different ways, some press the Tab key to enter, some press the F2 key to enter, and so on.