Question How do I update the BIOS ?

also cant install windows 10
Why not?
What exact problems are you seeing?

Following this, exactly where does it fail?
 
If the SSD does not appear in the BIOS, then you may have a defective SSD. Do you know if it works in any other system?

Also, does your BIOS have a setting to enable/disable the m.2 socket itself?

What is the make/model of the SSD you are trying to use?
 
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H81 chipset did not generally support NVMe boot. Support for that was backported to it by some big-name-brand motherboard manufacturers with their later BIOSes. But when you choose a no-name Chinese manufacturer for your motherboard, then you forego such support and can only use such a drive for additional storage, not boot.

You can ask one of the BIOS-mod forums if they can modify your BIOS, but usually you have to point them to a factory BIOS they can download to mod for you, so good luck with that when the manufacturer is so fly-by-night they don't even have a website. Without a manufacturer supplied utility you would have to remove the BIOS chip and read it in a programmer to have them look at it, and frankly that's too much trouble to be worth it for a 12-year old board when Windows 10 support ends in 6 months. Just use SATA to boot from.

There is a workaround where you can boot from USB with the NVMe drivers.
 
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If the SSD does not appear in the BIOS, then you may have a defective SSD. Do you know if it works in any other system?

Also, does your BIOS have a setting to enable/disable the m.2 socket itself?

What is the make/model of the SSD you are trying to use?
SSD is an Huadisk Southern Fist M.2 128GB. This is the M.2 drive
I can't find anything in the BIOS to enable this M.2, but the board has a slot for an M.2.
 
I have changed the CPU to an I7-4790k. And I installed an SSD. I'm just trying to get a M.2 NV Me SSD to work on this system.
As a secondary, non-boot drive, this can be done.

But don't try to forcefeed an NVMe drive as the boot device.
Your H81 chipset does not support this.
Nor would you see any magical benefit.

What drives, specifically, do you have now?
 
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H81 chipset did not generally support NVMe boot. Support for that was backported to it by some big-name-brand motherboard manufacturers with their later BIOSes. But when you choose a no-name Chinese manufacturer for your motherboard, then you forego such support and can only use such a drive for additional storage, not boot.

You can ask one of the BIOS-mod forums if they can modify your BIOS, but usually you have to point them to a factory BIOS they can download to mod for you, so good luck with that when the manufacturer is so fly-by-night they don't even have a website. Without a manufacturer supplied utility you would have to remove the BIOS chip and read it in a programmer to have them look at it, and frankly that's too much trouble to be worth it for a 12-year old board when Windows 10 support ends in 6 months. Just use SATA to boot from.

There is a workaround where you can boot from USB with the NVMe driver
I Can't even use it to store games. In windows 11 and it doesn't recognize the m.2 drive nor in the bios. Can u give me a link and point me in the right direction? When I power on my PC there is a red light that flashes on the M.2 PCIE SSD, but I can't find it to allocate it and use it. not showing in the bios or disk manager. PLEASE help me.
 
I Can't even use it to store games. In windows 11 and it doesn't recognize the m.2 drive nor in the bios. Can u give me a link and point me in the right direction? When I power on my PC there is a red light that flashes on the M.2 PCIE SSD, but I can't find it to allocate it and use it. not showing in the bios or disk manager. PLEASE help me.
Then it is very possible that your wildly off brand motherboard does not support an NVMe drive.
Or at least not with whatever BIOS is on it.
 
In that case the PCIe bus may not even be connected to the M.2 slot so it might only accept SATA M.2 drives, not NVMe. Without motherboard documentation though we cannot be sure of what it is.

If it was connected to PCIe, Windows should see the NVMe drive directly and install drivers for it automatically, so the drive would be available only after the driver loads and not before Windows boots. But if it accepts SATA M.2 drives then you may actually be able to boot from it with the right drive