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Changing to ACHI

post #1 of 13
Thread Starter 
Hi. I'm reformatting soon and back when I did my original installation of Windows 7 I forgot to turn on ACHI mode in my bios. I have my 1TB Caviar Black partitioned for 250gb Windows 750gb Storage. Will I have to partition the 750gb that all of my Storage/backup files are on if I switch to ACHI? Or just the Windows?

Thanks
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post #2 of 13
Switching between ACHI and IDE all data will be erased.
 
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post #3 of 13
Quote:
Originally Posted by Jump3r View Post
Switching between ACHI and IDE all data will be erased.
no it wont.
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post #4 of 13
Quote:
Originally Posted by Jump3r View Post
Switching between ACHI and IDE all data will be erased.
Are you sure? It's perfectly safe to switch to AHCI (which means "Advanced Host Controller Interface") from IDE mode after installing Windows with a simple Registry edit, so I don't see how he'd lose all that data on that partition. In fact, I can switch to IDE mode and back to AHCI mode right now and I won't lose any of my data. After all, it's just a controller interface.

Logistic: I believe it'll be perfectly fine because the partitions were created using a specific format (NTFS) which actually doesn't get created any differently if you're in AHCI mode or if you're in IDE mode. I mean, using AHCI this time around won't have any negative effect on the 750 GB partition.
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It's a computer!
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post #5 of 13
It can be done, just a registry tweak. See here http://www.ocztechnologyforum.com/fo...r-Installation
post #6 of 13
Quote:
Originally Posted by XAslanX View Post
It can be done, just a registry tweak. See here http://www.ocztechnologyforum.com/fo...r-Installation
He is asking if his 750 GB will be safe because it was originally created while he was using IDE mode. So now he is formatting and starting over, and he wants to keep this 750 GB partition, but this time he wants to install Windows with AHCI mode enabled. So he's wondering if he will still be able to use that 750 GB partition with AHCI mode enabled.

So of course, the answer is yes: all the data will still be accessible and the partition will still operate the same way. The file browsing performance on the 750 GB partition may even be slightly faster thanks to AHCI.

So he's not asking how to switch from IDE mode to AHCI after installing Windows.
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It's a computer!
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post #7 of 13
Quote:
Originally Posted by transhour View Post
no it wont.

Quote:
Originally Posted by TwoCables View Post
Are you sure? It's perfectly safe to switch to AHCI (which means "Advanced Host Controller Interface") from IDE mode after installing Windows with a simple Registry edit, so I don't see how he'd lose all that data on that partition. In fact, I can switch to IDE mode and back to AHCI mode right now and I won't lose any of my data. After all, it's just a controller interface.

Logistic: I believe it'll be perfectly fine because the partitions were created using a specific format (NTFS) which actually doesn't get created any differently if you're in AHCI mode or if you're in IDE mode. I mean, using AHCI this time around won't have any negative effect on the 750 GB partition.
My bad guys sorry i was thinking of raid, me need sleep
 
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Black Dragon
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Jumper V2.0
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Haier 55"4k TV Logtech Wireless Garbage Corsiar 850RMI Fractal Design Define C 
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i7 4770k [4.5@1.3V] Asus ROG Formula VI GTX 780 [1201/1722] GTX 780 [1201/1722] 
RAMHard DriveHard DriveOptical Drive
Dominator Plat 16GB 1866C9@1.5v Samsung 840 250GB Pro Seagate SSHD 2TB N/A 
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22 stickle flow Fans Black ice 480 Black ice 240 2 D5 pumps running two loops 
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post #8 of 13
Thread Starter 
Hey. Thanks for the responses. Fair enough. I just wanted to make sure all my music/backup files stay safe.
i7
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i7
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post #9 of 13
Quote:
Originally Posted by Logistic View Post
Hey. Thanks for the responses. Fair enough. I just wanted to make sure all my music/backup files stay safe.
They will as long as you don't accidentally format or delete that partition. hehe
It's a computer!
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i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #10 of 13
I just switched to AHCI this morning on my ssd that was currently IDE.

AND WHAT A DIFFERENCE, ive gotten the biggest increase in performance when now running on AHCI, all i did was disconnect all my harddrives besides the boot drive.

Then plugged my other HDD after windows finished installing no loss of data etc.
My Build
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My Build
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