if its got a Sata 6 GB/s Controller (Sata II or III) it most likely supports AHCI.

TRIM has nothing to do with the motherboard. As long as the operating system (Windows 7) and the SSD itself support it you're good.

1-I thought that in order for the SSD to support TRIM under Win7, then the bios has to be set to AHCI!!!
Write or wrong??

2-So I guess the real question is: On an X58 mobo will I surely have the feature of AHCI?

Artman wrote:1-I thought that in order for the SSD to support TRIM under Win7, then the bios has to be set to AHCI!!!
Write or wrong??
2-So I guess the real question is: On an X58 mobo will I surely have the feature of AHCI?

You can set it to both IDE mode or AHCI and it will still be supported with TRIM under Windows 7.

As mentioned above, all SATA II and III controllers should have AHCI support so you should be fine.

Jesus, this so sooo confusing
OK here is the situation; I will be installing Win 7 64bit on an OCZ vertex 2 SSD "90GB", while the data resides on a 1 TB Western Digital "Black Edition 64MB cache with dual processor"

So which Mode "AHCI,Sata,Enhanced..." should I configure the bios prior to installing the system?

I read that while using AHCI it supports NCQ. Do you think it will make a difference on a gamming desktop?

AHCI is the option to choose I believe, that should be best for both drives. The sata option seems to be the regular sata which comes with AHCI mostly nowadays, so the sata option seems kinda pointless to me. Enhanced IDE is when you are using PATA drives, which you are not.

I don't know if your drives support NCQ, but it shouldn't matter while gaming since it only improves the read/seek times a bit. Maybe it improves the game's loading times a bit though.

its recommended that you configure ports 1-4 to AHCI before installing windows onto the SSD, however there is a system32 workaround if you installed windows in IDE mode on your SSD. I did that myself because I didn't even know about AHCI and it worked for me, just make sure you enable it in your bios before you do it or you could corrupt the normal boot process of windows.

I have 3 HDDs, both are IDE but AHCI seems to work fine with them

I did not know about them either until I saw AHCI about a year or two ago. I wonder if setting AHCI in BIOS will increase performance of my hard drive? Right now, the transfer rate is about 10 megabytes per second when I transfer files to another partition or to another hard drive over the network.

It's a 750GB GreenPower hard drive from Western Digital.

AHCI rides along with NCQ so yes your pc copying, backing up, moving files, saving files will speed up dramatically. Some hard drives have to be compatible with this feature which by now most SATA are.

Well, AHCI only improves the multitasking operations of SSDs, I dont know the benefits of it for mechanical HDDs if any so try it at your own risk

Thanks a lot for your posts guys. Here are the basic parts or my rig:
CPU: Intel I7 950
GPU: Gigabyte SOC 470GTX 1280MB DDR5
Memory: Corsair 6gb DDR3 1600 Model CMX6GX3M3A1600C9
Booting Drive: OCZ Vertex2 90GB SSD -"win 7 64bit"
Storage HDD: Western Digital 1TB 64MB cache

Since I have reached my budget limit I RELUCTANTLY decided to go for the Foxconn FlamingBlade GTI. "If you have any advice conserning this MB PLS tell me"

THX guys