Computer automatically boots from HDD instead of SSD

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orglce

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Apr 17, 2015
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Hello,

So, I recently bought a new Samsung Evo 850 SSD drive. I have installed it along with my previous HDD drive on Acer Aspire V3 laptop. Then I migrated my entire OS (Windows 8) to my new SSD drive with the Samsung Data Migration Tool that came with the disk. So the HDD and SSD have the exactly the same OS installed on them. But when I try to boot up to SSD, the computer automatically boots to the old HDD, even though I set the boot priority in BIOS to SSD and set to AHCI mode.

If I disconnect the HDD, computer boots nice to SSD and everything works great, but the I connect it back and it goes back to HDD.

Thank you in advance.
 
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0x1eef

0x1eef

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Jan 16, 2015
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Go to BIOS and change boot order so that SSD appears before HDD. Should solve your problem.
Also, was AHCI enabled with Samsung software?

If you don't want to format your HDD, you can try to:
1. Boot with just the SSD installed.
2. Verify that the disc letter C was assigned to it.
3. Connect HDD
4. Assign some other letter to it.
 
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orglce

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In don't see HDD in the BIOS. Before I installed SSD the first option was set to Windows boot manager. Then I set the SSD as the first option and Windows boot manager as second. But it still boots to HDD.

Can I connect HDD to a computer, while it is running? If I boot it with only SSD installed, it assigns the letter C, but if both are installed then the SDD has the letter G assigned to it.

 
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ArtPog

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Sep 17, 2014
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BTW, understand that when the system boots to a specific drive that drive will ALWAYS be assigned the C: drive letter.

There's an inference in your description of your system that the boot problem you describe occurs when BOTH drives are simultaneously connected in your Acer laptop. Is that so? Is the laptop equipped with two HDD/SSD bays? Or perhaps you're using one of those caddies to mount a second drive in the optical drive bay? If the preceding is the case that may account for the problem you're experiencing as I will describe based on your response to the above.

 
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orglce

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The problem occurs when both drives are connected simultaneously.
and my laptop has two HDD/SSD bays.

 
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orglce

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In the second one. I tried to swap them and the computer just turn on and off after two seconds. But luckily when swap them back everything was back to normal.
 
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ArtPog

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The problem you experience is not surprising based on the experience we've had with a number of laptops equipped with two drive bays. Many of those type laptops will not permit a boot from a drive connected in the second drive bay even when the boot priority setting in the BIOS/UEFI indicates a boot to the drive in that bay. What makes this even more annoying is that in some cases even when there is NO drive installed in the first bay the system will not allow a boot from an otherwise bootable drive installed in the second bay even (again) when the boot priority order reflects a boot to that drive.
 
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ArtPog

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Just to clarify my last response...

As boosted1g advised, your boot drive - the Samsung SSD - should definitely be installed in the first bay. I know you stated that you "tried to swap them and the computer just turn on and off after two seconds. But luckily when swap them back everything was back to normal." I really don't understand precisely what is happening here.

Are you indicating that if the cloned SSD is installed in the first bay and the HDD (your former boot drive) is installed in the second bay, the system will not boot even though the boot priority order in the BIOS/UEFI reflects a first boot to the SSD?

But when the situation is reversed, i.e., the HDD is installed in the first bay and the SSD in the second bay, the system will boot to the HDD with no problem?

Could you clarify this?
 
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orglce

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Okay, things just gone really weird and complicated.

1. OPTION (both drives installed, HDD in the first bay, SSD in the second bay, boot priority set to SDD, HDD does not even show up in BIOS)

- computer boots into HDD


2. OPTION (both drives installed, SSD in the first bay, HDD in the second, SSD not showing up in the BIOS, Boot priority set to Windows Boot manager, but now HDD is shown in the BIOS and set as second option.

- computer boots into HDD


3. OPTION ( both drives installed, SSD in the first bay, HDD in the second, SSD not showing up in the BIOS, Boot priority set to HDD)

- computer turns on and turns down after three seconds


4. and 5. OPTION (only SSD installed, either in the first or in the second bay)

- computer boots into SSD just fine


It looks like BIOS only recognizes drive in the second bay.

I hope that I've explained more or less understandable but there is really no other way to explain this.
 
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ArtPog

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Your detailed description of what is happening is quite clear.

AFAIK, it is not possible that a BIOS does not detect a HDD that the system boots to. At least I've never encountered such a situation and I've never heard of that occurring.

On the other hand I'm aware of the Windows boot manager exhibiting strange behavior.

We have run into boot problems with some (but not all) laptops equipped with two drive bays, however the basic problem is invariably that an otherwise bootable drive will not boot when installed in the second bay. No problems accessing its contents and manipulating data - only the inability to boot to the drive. And, of course, no boot problem when that drive is reinstalled in the first drive bay. So the problems we've experienced aren't as complicated as to what you're experiencing.

I suppose you've already consulted a detailed User's Guide assuming one is available for your laptop.

Have you tried getting in touch with Acer tech support to see if they can shed any light on this?
 
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orglce

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I have just chatted with an Acer technician an he stated that there may be a problem within my BIOS. I also saw some people recommending to update BIOS to solve some problems with hard drives and their priority. My BIOS version is 2.12. Should I update it, and thus, where can I find an update? My exact computer model is Acer Aspire V3-771g-736b8G75Maii.
 
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ArtPog

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Given your present situation it's probably sensible to install the latest BIOS update for your Acer laptop (assuming it IS a later BIOS than what's presently installed.)

Make sure you completely understand & follow the Acer BIOS installation instructions when installing the BIOS update.

Here's the link to access for the BIOS update...
http://www.acer.co.za/ac/en/ZA/content/support

(I tried the link but apparently their server was down. Hopefully you'll be able to access it by & by.)

You can either enter the laptop's model - Aspire V3-771g or better yet, the serial # of your laptop in order to access the BIOS update.

Good luck. Let us know the results.
 
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