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Windows 7: Raid vs ahci?

19 Aug 2012   #1
GTraymond2820

Windows 7 Home Premium 64 bit
 
 
Raid vs ahci?

Whats the difference because, i dont know if this is a issue but when ever i want to install windows 7 i have to set my sata controller to ahci instead of its default settings which is RAID, why do i have to do that?


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19 Aug 2012   #2
GeneO

Windows 10 Pro. EFI boot partition, full EFI boot
 
 

Raid requires more than one disk. RAID is a collection of disks that provide data redundancy in case one the disks fails. AHCI is a SATA disk contoller interface that provides an advanced (compared to IDE) disk protocol. AHCI is a protocol that is used at the disk level. RAID is a protocol for redundancy across multiple disks drives.
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19 Aug 2012   #3
GTraymond2820

Windows 7 Home Premium 64 bit
 
 

ok i think im getting it but do you mind dumbing it down a little so my 15 year old brain can understand
)
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20 Aug 2012   #4
gregrocker

 

RAID normally means two HD's married into a single partition, however on some motherboards it is also a generic term for the SATA mode.

It doesn't really matter because with Win7 you should first try install in AHCI mode, then if it fails use the default RAID mode. Are you sure there isn't another IDE mode?
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20 Aug 2012   #5
GTraymond2820

Windows 7 Home Premium 64 bit
 
 

thx for the answer i dont know about the ide thing but when i enter the bios, sata controller are 3 options ide, raid and ahci
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20 Aug 2012   #6
gregrocker

 

Try install first in AHCI mode. If it fails then try in IDE mode.

Post back if you have any problems and we will troubleshoot the install with you.
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22 Aug 2012   #7
GTraymond2820

Windows 7 Home Premium 64 bit
 
 

Everything is good in ahci mode, I just wanted to know what the difference are, no problems.
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 Raid vs ahci?




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