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| Thread ID: 136636 | 2014-03-24 23:52:00 | IDE vs AHCI | bk T (215) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 1371243 | 2014-03-24 23:52:00 | OS: Win8.1 x64 Boot Disk: OCZ SSD Original BIOS set to IDE , boots fine. Just did some reading that AHCI is faster than IDE, so, restarted the machine, went to BIOS, changed the setting to AHCI, saved settings and exit. PC restarts, Win8 logo appears with the the spinning dots for a few minutes and pops up an error message (didn't write down the exact error message, but it's something like error loading.. ) and PC restarts and repeats the cycle .... Went in to BIOS, reset back to IDE and machines boots OK. Could someone explain to me why is it so? Thanks. |
bk T (215) | ||
| 1371244 | 2014-03-25 00:00:00 | OS: Win8.1 x64 Boot Disk: OCZ SSD Original BIOS set to IDE , boots fine. Just did some reading that AHCI is faster than IDE, so, restarted the machine, went to BIOS, changed the setting to AHCI, saved settings and exit. PC restarts, Win8 logo appears with the the spinning dots for a few minutes and pops up an error message (didn't write down the exact error message, but it's something like error loading.. ) and PC restarts and repeats the cycle .... Went in to BIOS, reset back to IDE and machines boots OK. Could someone explain to me why is it so? Thanks. thats because when the os was installed it was set to ide therefore The ahci configuration /drivers were not loaded or installed for the os. sometimes windows just out smarts itself |
beama (111) | ||
| 1371245 | 2014-03-25 00:15:00 | Is there a way to correct it so that I can make use of the AHCI mode which is faster? | bk T (215) | ||
| 1371246 | 2014-03-25 01:09:00 | Is there a way to correct it so that I can make use of the AHCI mode which is faster? Can be done, its not simple. Google will find instructions . I have read that in the REAL WORLD , there is no worthwhile speed difference anyway. Hard drives are slow, I doubt any (non raid) HD will be so fast that it would get bottle-necked anywhere on a reasonable system |
1101 (13337) | ||
| 1371247 | 2014-03-25 01:18:00 | You have to do a registry hack and install the drivers try this www.overclock.net It's not that hard but editing the registry always carries some risk. Not a lot to be gained on a standard hdd though so up to you if you think it's worth it. Edit, reread ans saw SSD, definately worth it for trim support alone |
dugimodo (138) | ||
| 1371248 | 2014-03-25 01:49:00 | TRIM does not require AHCI mode. | Alex B (15479) | ||
| 1371249 | 2014-03-25 02:25:00 | TRIM does not require AHCI mode. OK corrected, I thought it did. I was of the understanding for windows to do automatic TRIM it needed to be AHCI mode and if not you needed to use a utility instead. I still think AHCI is preferable in general but of dubious benefit if you are running ok in IDE mode already. Any time you do a clean install though it's worth checking the controller mode and setting it to AHCI for the other benefits. |
dugimodo (138) | ||
| 1371250 | 2014-03-25 02:37:00 | Thanks folks. | bk T (215) | ||
| 1371251 | 2014-03-25 02:38:00 | According to Wikipedia Windows 7 only supports trim for ordinary (SATA) drives and does not support this command for PCI-Express SSDs that are different type of device, even if the device itself would accept the command.[35] It is confirmed that with native Microsoft drivers the Trim command works in AHCI and legacy IDE / ATA Mode |
Speedy Gonzales (78) | ||
| 1371252 | 2014-03-25 02:52:00 | When I recently installed an SSD I found that the speed, measured by AS SSD, increased after changing from IDE to AHCI. From memory, I just did the registry change and all worked fine. | linw (53) | ||
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