Second hard drive (D:) shows up only after a soft reboot

Mar 28, 2018
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So yeah as the title says, my second HDD works only after a soft reboot. I think i can hear it start up when i start up my pc normally, but it wont show up anywhere.
This problem has been around for like 2 years because i was never bothered to fix it and i think it came right after i installed a new and my current motherboard.
I've tried different sata ports and a fresh install of win10. Scanning or optimizing has no effect.

Does anybody have an idea how to fix this?

Edit: The HDD is a samsung hd103sj
 
If the problem has been around for a long while, you may want to investigate the PSU you have in your system. SPeaking of which you forgot to mention your full system's specs. List them like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:

It would also be a good idea to see if you have any BIOS updates pending.
 
Oh yeah i forgot

CPU: AMD FX-8350 8-core
Motherboard: Asus M5A97 R2.0
Ram: 12 GB
SSD/HDD: Kingston sv300s37a120g (healthy), Samsung HD103SJ (Acting weird)
GPU: GTX 780
PSU: XFX Pro 550w
 
This occurs because the BIOS polls the drive before it has spun up (the firmware of the drive is actually loaded off a hidden track on the platters into its onboard RAM, which is the "cache" on a HDD). It used to be common to have a BIOS setting to "delay IDE initial" or change "IDE detect timeout" but your board doesn't have it so the only setting left to delay polling is to slow the POST message--under the "Boot" tab: raise "Post Report" up from the default 5 sec until the problem goes away.

By delaying the time until the BIOS queries the drive, the drive will be able to fully boot up in time to answer. Some disks just spin up more slowly than others.
 
I realized that the post doesn't actually display at all. It jumps from the asus logo to a short black screen and then to windows logo.
It did display the post between the asus logo and windows logo after i clicked save and reset in bios, but not when i do a hard restart.

I don't know if this is relevant, but sometimes it takes a couple tries to make my pc start on my main monitor and run both monitors. Other times it just starts on my second monitor and you cant switch it over. My main monitor has a dvi cable and my secondary has a hdmi.
 
Post Delay is the same thing, except when Full Screen Logo is enabled. If you want to see the POST screen each boot, you have to disable that and then you'll see the Post Report option.

It doesn't matter what it does on a warm reboot, because that's not when your problem is. What does it do on a cold boot? Does the HDD get detected then?

Yes, there is firmware offered for download, but what version do you already have? There is a known compatibility issue with at least one firmware revision.
 
I disabled full screen logo and set post record to 10 but the post still wont appear when i do a cold boot.

The HDD wont get detected at cold boot, only warm reboot.