After upgrading my DS3 to F 10, I invented an AHCI option. After that, I experienced some small visits and consultations, online search, system redo and other events. Finally, I have some ideas. Let me tell you something.
First, DS3 uses Intel ICH8 South Bridge. Intel states that ICH8 does not support AHCI. Only Intel does not provide drivers, and motherboard manufacturers are not allowed to support AHCI of ICH8.
Now, the ice has finally been broken. Many motherboard manufacturers have started upgrading the BIOS of AHCIDS3 motherboard of ICH8 motherboard to F 10. You can see the ACHI option in the integrated peripheral directory. When I consulted the customer service in Gigabyte, the customer service told me that DS3 actually started supporting AHCI at F 1. Just hiding. Press CTRL+F 1 in the BIOS main menu to turn on the hidden option. Unfortunately, mine has been upgraded to F 10, so I can't test it. No upgraded partners can try.
Because Intel provides the AHCI driver of ICH8R, and the difference between ICH8R and ICH8 is only support for RAID, so we can use AHCI on ICH8 only by modifying the driver of ICH8R.
Because Gigabyte has also integrated JM363 chip on DS3 motherboard to provide ide support, and can provide two more SATA supports (the purple one), we will use this to realize AHCI driver of ICH8 without reinstalling the system.
First, download the modified ICH8 driver. /BBS _ upload/ upload/2007/04 _19/1769 64584907.rar.
Then enter the BIOS, turn on the ACHI of ICH8 and turn off the ACHI of JM363 (this is to ensure the smooth entry of the system).
ACHI of ICH8 is located at the top of the integrated peripheral directory, while that of JM363 is the onboard SATA/IDE Ctrl mode option, which is selected as IDE.
Survival shutdown
Connect the wires of the serial hard disk to the purple connector.
The boot system will find a PCI device and designate it as the newly downloaded driver. At this point, the system will detect the PCI device as an Intel 8280 1HR/HH/HOSATA AHCI controller device.
Turn it off, and then put the hard disk back in the yellow screen.
Ok, restart the machine.
The AHCI driver installation of ICH8 has been mentioned above. Personally, I don't see much improvement in performance after installation. This is because the bottleneck of hard disk performance is mainly internal transmission.
Take Seagate 7200. 10 as an example, it is already the highest model for internal evangelization, and it is only 1030Mb/S, which is 128.75MB/S after conversion, which is lower than SATA2 1150mb/s.
When people are around, I'm not saying that it's not good to open AHCI. At least the NCQ function of AHCI will improve the performance of hard disk intensive reading.
In addition, many people are looking for the P5B_AHCI driver of ASUS, which is really unnecessary. Just do it yourself.
Download Intel's Intel Matrix Storage Manager driver, add the -a parameter to run during the operation, and then find iaahci.inf file (64 is the system driver 64) under C: \ program files \ Intel \ Intel Matrix Storage Manager \ driver.
Just replace all 282 1 in iaahci.inf file with 2824.
These are some of my experiences in opening AHCI with ICH8. Welcome to discuss.
AHCI can only be turned on if the hard disk supports SATA2.
This driver is Intel's SATA2 driver, but it has been modified to support ICH8.
In addition, because the newly developed Seagate 7200.9 series has many compatibility problems and 7200.9 has many revisions, there is a jumper on the hard disk of the department's 7200.9 and 7200. 10. The purpose of this jumper is to equip and arrange compatibility. The hard disk with jumper has a strong pressure on things in SATA2 1 state, so as long as the motherboard supports it, the jumper is still unplugged.
SATA II is developed on the basis of SATA, and its primary feature is that the foreign missionary transfer rate is further improved from SATA's 1.5 Gbps( 150 MB/ s) to 3 Gbps(300 MB/ s), and it also includes NCQ(Native Command Queuing), port multiplier, staggered start-up and so on. A simple 3Gbps external missionary transfer rate is not a real SATA II.
The key technologies of SATA II are the external transmission rate of 3Gbps and NCQ technology. NCQ technology can optimize the instruction execution of hard disk one by one, and avoid the traditional hard disk from mechanically moving the head to read and write different positions of the hard disk according to the received instructions. On the contrary, it will sort the commands after receiving them, and the sorted heads will be efficiently addressed one by one, thus preventing the losses caused by repeated movement of the heads. Extend the life of hard disk In addition, not all SATA hard disks can use NCQ technology. In addition to the hard disk itself, the SATA controller of the motherboard chipset also needs to support NCQ. In addition, NCQ technology does not support FAT file system, but only supports NTFS file system.