Do you want to unplug the jumper from SATA hard drive? The old bird is in!!

It's useless to pull it out! Unless you're a 10,000-spin hard drive. In the 7200 rpm SATA1 and SATA2 modes, the average transmission speed is 70-90M.

Although the external interface of SATA2 claims to reach 3G S, this is like a faucet with less water, and no matter how big the water pipe is, it is useless. When the AHci is turned on, the hard drive shuts down more slowly and makes a loud sound.

After removing the jumper cap, you usually have to install the hard disk drive of SATA2, and then go to the BIOS to turn on the AHCI function. This is considered to be running in the so-called SATA2 mode.

In the same mode, if you test this software many times, you will find that there is actually a lot of difference in burst speed on the same hard disk. If you want to switch from SATA mode to SATA2 mode, it is necessary to install the driver and open ACI. If you forcibly open achi without installing a driver, you will definitely have a blue screen when you enter the system.

Hard drives generally value the sustained transfer rate. That is, the average speed. Generally, diskspeed32, iometer are used for these tests, although the time is a little longer. But the accuracy is much higher. You can measure how much you can improve.

When the SATA II standard was developed, there were two standards:

1.the introduction of some network storage and server storage technologies;

2。Meet the demand for faster speeds in networked storage and server storage.

So there is definitely an improvement in application performance and game performance.

SATA2 will be much faster if your motherboard supports it, and the external transfer speed of SATA2 is twice as large as SATA1, SATA2 (300M), SATA1 (150M). Noise and life will not be affected much, the key depends on how you maintain it!

In the default form, no need to jump.

If you don't have an IDE hard drive (parallel port) or IDE drive on your computer, it doesn't matter if you dial it or not, but considering that you definitely have an optical drive installed on your computer, it is recommended to keep the hard drive jumper.

The purpose of retaining the hard disk jumper is to indicate the boot path to the system.

Jumper dialing or not dialing has nothing to do with data transmission. The biggest difference between serial port hard disk and parallel port IDE hard disk is that the transfer speed is different, serial port hard disk is more than 5-7 times faster than parallel port IDE hard disk.

Take a Western Digital hard drive as an example:

1-2 short-circuit, indicating that spectrum expansion is enabled, that is, the operating frequency of the hard disk is allowed to shift. SATA hard drives allow the operating frequency to be changed, which means that the working frequency can be lowered or increased to be used.

3-4 short-circuit, which allows the boot of the power management hard disk, that is, allows the controlled rotation of the hard disk to boot, which is used in a multi-drive server environment, which allows multiple hard disks to boot sequentially to avoid the impact of simultaneous booting on the power supply.

5-6 shorting to force the SATA III interface specification down to the SATA II specification (or SATA II to SATA I) for compatibility with older motherboards. This is because some older motherboards that only support the SATA I specification do not recognize SATA III drives, but they can recognize SATA II drives.

7-8 shorting, for the new 4K sector advanced format hard drive, XP does not correctly recognize the 4K sector (traditionally 512-byte sectors), shorting 7-8 allows the drive to run the "4K sector aligner" without having to run the "4K sector aligner", and can operate normally under XP (only the full capacity is created as a partition).

It's okay, the two are backwards compatible with each other.