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M68MT-S2 AHCI Question

M68MT-S2 AHCI Question
« on: May 04, 2012, 10:44:40 pm »
I have recently ordered a SSD and have found that it's recommended you enable AHCI in bios to make full use of an SSD.

I'm currently using the Gigabyte M68MT-S2 and see no AHCI option in the BIOS.

Is there anything I can possibly do or does it simply not support AHCI? I have heard rumors that AHCI is needed for TRIM support and without that my SSD will become slower over time.

Edit:
Here is the manual to my MB incase there is something I am overlooking something:
http://download.gigabyte.ru/manual/mb_manual_ga-m68mt-s2_v.3.1_e.pdf

I notice my MB supports RAID so wouldn't that mean it also supports AHCI? I don't know - now I'm just hoping for the best I guess!

Thank you!
« Last Edit: May 04, 2012, 11:01:25 pm by Puremin0rez »

autotech

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Re: M68MT-S2 AHCI Question
« Reply #1 on: May 05, 2012, 03:43:53 am »
Sorry, the board has an old Nvidia chipset so it doesn't support AHCI. go to drivers SATA RAID has ACHI driver, other than that, that's your lot.  Means if you dont use raid it wont support ACHI. Sorry i dont like bad news either on the bright side corsair force 3 ssd's support raid but when using raid with ssd you do lose features like trim and possiably garbage collection. The bright side you can run the trim command and it might work.

Welcome to the gigabyte forum.
GA-Z170X-UD5,Core i5-6600K,16 GIG,3200 ram ,2 X Corsair 240GB SATA III SSD, 500 gig HD,7 ult 64\, Rx-480 8gig\

Z97X-SOC GIGABYTE, I5 4670k, 16 gig 1600 ram, 240 gig sata3 SSD,1x 500HD/ R9 280x, corsair 650 RM PSU

GA-Z97X-Gaming G1,850 corsair,,DDR4 3200,240SSd,6950 video,850EVA

Re: M68MT-S2 AHCI Question
« Reply #2 on: May 05, 2012, 11:23:13 pm »
Thanks for the welcome!

It's disappointing to see that I can't simply set it to AHCI.

If I turn on RAID, would I require that 2 harddrives actually BE in RAID? I have 2 harddrives but I don't really want to put my SSD and standard HDD into RAID.

Do you know if standard IDE mode will support TRIM if I use Windows 7? Or is this something that is hardware dependent?

Thanks again for the great support!

autotech

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Re: M68MT-S2 AHCI Question
« Reply #3 on: May 06, 2012, 03:49:58 am »
First you cant do a raid with a sata and a ssd drive. Raid work with 2 hard drives of same type and size. Two ssd both at 90 gig would support riad or two sata hard drives at 500 gigs each would do a raid.

The mode of the device includes a set of commands that it will recognize. "TRIM" is a brand new command that's been added to the SATA command set but not the IDE set, so my understanding is that devices running in IDE mode don't support it.

Now the kicker is if you raid 2 ssd drives the trim command is disabled. You might be able to run it manually but i havernt looked into that but i will.

FROM ANOTHER FORUM
The general rule of thumb is solid state drives in a Raid array do not support the Windows TRIM function. Instead, the drives rely on what is commonly referred to as "garbage collection". Garbage collection works very well.

There is one exception that I am aware of but it is more of a workaround. Intel has been working on the problem and might have a solution. There are rumors that TRIM support for Intel ssd's in Raid arrays will be included in the new models that will be introduced later this year. No confirmation yet.
I hope this information helps. some say that intels ssd toolbox might suppport trim in a raid but i cant find a clear answer and dont want to give you the wrong info.
I will say a ssd in achi mode is fast that is what i use and i have 3 spare 500 gig platter drives for backup and i just run windows and a few small programs on my ssd it is a 90 gig with 86 gig useable and i have43.3 gig free i transfered all games and big program i dont use alot to a platter drive along with temp files and so on.

http://www.ocztechnologyforum.com/forum/showthread.php?63273-*-Windows-7-Ultimate-Tweaks-Utilities-*&p=442151&viewfull=1
that is a good ssd drive info page for windows 7
« Last Edit: May 06, 2012, 04:03:58 am by autotech »
GA-Z170X-UD5,Core i5-6600K,16 GIG,3200 ram ,2 X Corsair 240GB SATA III SSD, 500 gig HD,7 ult 64\, Rx-480 8gig\

Z97X-SOC GIGABYTE, I5 4670k, 16 gig 1600 ram, 240 gig sata3 SSD,1x 500HD/ R9 280x, corsair 650 RM PSU

GA-Z97X-Gaming G1,850 corsair,,DDR4 3200,240SSd,6950 video,850EVA