Not booting if any other drives but boot drive is in

So setting up my first Nas.
When booting with any hard drives (except boot hard drive) hooked up it will not go past the enter Bios screen. If just the boot drive is in it boots fine. Need help

using a asus rog b450 gaming 2, ryzen 5 5800x, 32gb ram

Set the boot order correctly in BIOS?

As far as I know. With the other drives in it wont even go to Bios.

You should be able to access the bios with keystrokes without any drives present or any attempt to boot an OS.

No matter what i do I cant get in Bios if i have my storage Drive in. Will go to it fine with just the boot drive.

See page 5 in your manual: BIOS setup program

It wont let me get past the bios log in screen at all if any other drive is in but the boot drive. No matter what I hit it does not do anything

If you don’t have any drives connected at all, does the system post and allow you to get into the bios setup with the manual’s keystrokes?

Did this system ever behave “properly”?

Yes. it worked fine when used for years as a widows computer.

Is it one drive or several? What type of drive are they, how is/ how are they connected?

Edit: There are some limits what works when:

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It does sound like the BIOS is having a hard time determining the correct boot order. It’s an issue I also had to fiddle with between legacy and UEFI boot sequences and whatnot.

The key thing is to ensure that once you have multiple drives attached that the system is actually entering the BIOS screen, confirming all drives are present (count!), and only then fiddling with sequences.

As I recall, some motherboards do weird stuff between allowing more SATA ports to be active vs. PCIe lanes and all that has to be set in the BIOS also. I’d sit down with the manual to this motherboard and have a deep read of available info.

If it’s not getting to the BIOS screen once multiple drives are attached, you may be looking at an electrical issue, ie the PSU cannot handle the power draw associated with multiple drives.

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That’s EXACTLY what I was afraid of.

When there is a limit on PCIe lanes, these kinds of approaches are often used. I ran into this while reviewing Atom boards all the time and it’s one reason one usually doesn’t see an Atom CPU on anything larger than a a Mini-ITX motherboard.

I’m using a D-1537 based motherboard precisely because I didn’t want to deal with this kind of baloney. My next board will likely be Ryzen -G for the same reason.

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Current boot drive is m.2 sata
And only one drive on a sata drive

There is a image in the manual showing the shared connectors.

The SATA M.2 has to be in the port labelled C, is the SATA drive by any chance connected to the two SATA ports labelled C also?

No it is in sata1

Almost a pity, I suspect it would have still been able to boot, just not find the drive connected to the SATA Port 5/6.

You could try and reset the BIOS to see if that changes anything. I assume the boot disk is the m.2 SATA right? Also maybe check in the BIOS if the settings are not set to raid or anything?!

You could also try and remove the m.2 and leave just the drive connected to the SATA port, see if it reaches bios then.