Aspire A315-55G sometimes don't show hard disks in bios says, "No bootable device."

Recently, I encountered an issue with my laptop. When turning it on, sometimes it shows "No bootable device." After pressing Control + Alt + Delete and restarting the laptop, it boots fine. Occasionally, I press F2 and randomly enters the BIOS during booting, and I sometimes notice that none of the hard disks are showing in the BIOS setup. My system has two hard disks: a 512 GB NVMe M.2 drive and a mechanical hard disk that came with the laptop. I also reseated the NVMe and hard disk yesterday, but the issue persists. My BIOS version is Insyde H2O 1.18. Could this be a faulty motherboard?

Is there a option or advance mode in bios that it will show all the disks and debug information when boots? So i can see what happens.

Laptop model:Aspire A315-55G

Bios Version:Insyde H2O 1.118

2 hard disks connected: An Lexar Nvme & Toshiba HDD

Thanks in advance!

[Edited the thread to add model name to the title]

Accepted answers

All comments

Puraw

https://community.acer.com/en/discussion/710663/aspire-a315-55g-sometimes-dont-show-hard-disks-in-bios

If the Toshiba HDD is your boot drive I suspect you have a bad sector, check the HDD with testing software like HWINFO.64. If that shows errors like "Number of Reported Uncorrectable Errors" (should be zero) replace the mechanical drive with a SSD like the 2.5" Sata-3 Samsung 870 Evo V-NAND up to 2TB. If the SSD is your boot drive check if the SATA mode in BIOS is set to AHCI, not RST with Optane/RAID.

Drakula

https://community.acer.com/en/discussion/comment/1291377#Comment_1291377

Thank you very much for the answer @Puraw .My Boot drive is the SSD and windows 10 is installed to that.I have checked with bios and identified that the option is set to rst with optane.But when change that to AHCI,the windows will not boot.it restarts,It boots only when set to RST with optane.

I also installed disk sentinal and it shows something like below

And For the HDD,it shows like below.

Below attached the HDD sentinel report so you may can get a clear understanding of the system

disk report.zip

Thanks again!

Puraw

https://community.acer.com/en/discussion/comment/1291381#Comment_1291381

No issues with your 2 drives by the looks of it, but IMO you need to switch to AHCI, try this; in Windows press the Windows Key + R and type MSCONFIG go to the services tab and disable Intel(R) Storage Middleware Service, click on apply and reboot to BIOS with F2 and switch Sata mode to AHCI: is it ok to switch from intel rst to ahci in acer nitro 5 2020 i5 9th gen i have 1 tb hdd and added — Acer Community

Drakula

https://community.acer.com/en/discussion/comment/1291385#Comment_1291385

Thanks for the reply and let me check that ☺️

Drakula

https://community.acer.com/en/discussion/comment/1291385#Comment_1291385

Hello @Puraw .I just did as you told and now i am running on ahci mode from yesterday.so far no issue yet.sometimes i can see a long black screen before acer logo apear when booting.other times its ok and boots as earlier.Thank you verymuch for the guide!

Drakula

is there a way to unlock advanced mode or anything in bios so i can see what is happening while booting?

Puraw

https://community.acer.com/en/discussion/comment/1291671#Comment_1291671

Glad you got the AHCI option to work, no there is no way to unlock the Advanced screens in acer BIOS, all you can do is pressing Ctrl+S to unhide the settings Acer allows you to see and change. 😉

Quick Links

Top Members

Weekly

Puraw 405

StevenGen 235

GAMING6698 70

RenanVilela 65

Jack22 65

Swift Series Intel^® Evo™

Game Pass

Acer Corner

Gaming on Chromebook

Swift Series Intel® Evo™

Game Pass

Acer Corner

Gaming on Chromebook

Swift Series Intel^® Evo™