Hello guys! Before further reading I need to advise that English is not my main language so my apologies.

Something really strange is happening after my Antergos installation, there is no Antergos option in my motherboard boot menu. Before anything let me explain the setup, I have a SSD which I installed Windows and a HDD which I installed Antergos, simple like that, both of them are GPT partitioned.

After Antergos installation, the setup ask me to restart the system, if I run efibootmgr before that, I can see the boot entry, but on reboot the option just vanish. To fix this I need to boot again to the LiveCD and run the follow command:

efibootmgr -c -g -d /dev/sdb -p 1 -w -L "Antergos" -l /EFI/antergos_grub/grubx64.efi

This time the entry appears and everything is fine, until I remove the flash drive, if I do that the entry is gone and putting the flash drive back dont bring the option back together.

I tried doing the same process using the Shell v2 with the following command:

Shell> bcfg boot add 0 FS4:\EFI\antergos_grub\grubx64.efi "Antergos"

But the same thing happens.
This is my efibootmgr:

BootCurrent: 0000
Timeout: 2 seconds
BootOrder: 0000,0001,0002,0004,0005,0006,0008
Boot0000* Antergos3	PciRoot(0x0)/Pci(0x1f,0x2)/Sata(5,65535,0)/HD(1,GPT,14e1400e-34bc-4b63-a958-ff14e3b279ee,0x800,0x100000)/File(\EFI\antergos_grub\grubx64.efi)
Boot0001* SATA : PORT 4 : KINGSTON SHFS37A120G : PART 0 : Boot Drive	BBS(HD,,0x0)AMBO
Boot0002* SATA : PORT 5 : ST1000DM003-1SB10C : PART 0 : Boot Drive	BBS(HD,,0x0)AMBO
Boot0004* USB : SanDisk Cruzer Blade 1.27 : PART 0 : Boot Drive	BBS(HD,,0x0)AMBO
Boot0005* UEFI : SATA : PORT 4 : KINGSTON SHFS37A120G : PART 1 : OS Bootloader	PciRoot(0x0)/Pci(0x1f,0x2)/Sata(4,65535,0)/HD(2,GPT,12757894-1b54-49e4-8b97-b8b686174e32,0xe1800,0x32000)AMBO
Boot0006* UEFI : SATA : PORT 5 : ST1000DM003-1SB10C : PART 0 : OS Bootloader	PciRoot(0x0)/Pci(0x1f,0x2)/Sata(5,65535,0)/HD(1,GPT,14e1400e-34bc-4b63-a958-ff14e3b279ee,0x800,0x100000)AMBO
Boot0008* UEFI : USB : SanDisk Cruzer Blade 1.27 : PART 0 : OS Bootloader	PciRoot(0x0)/Pci(0x1d,0x0)/USB(1,0)/USB(6,0)/HD(1,GPT,8de6635c-0a69-4d4f-9227-688ab2e7499e,0x800,0xee83df)AMBO

And this is my fdisk:

Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 14E3E7B3-A181-4FD6-9F17-10B9B03F02EF

Device       Start       End   Sectors   Size Type
/dev/sdb1     2048   1050623   1048576   512M EFI System
/dev/sdb2  1050624   9050623   8000000   3.8G Linux filesystem
/dev/sdb3  9050624 259050623 250000000 119.2G Linux filesystem


Disk /dev/sda: 111.8 GiB, 120034123776 bytes, 234441648 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 46132216-8746-48A7-87A6-E9116E35B1A5

Device       Start       End   Sectors   Size Type
/dev/sda1     2048    923647    921600   450M Windows recovery environment
/dev/sda2   923648   1128447    204800   100M EFI System
/dev/sda3  1128448   1161215     32768    16M Microsoft reserved
/dev/sda4  1161216 234440703 233279488 111.2G Microsoft basic data

By the way, my motherboard is a Intel DH61CR.
What is going on? Im doing something wrong? Is the motherboard crazy?

Thanks in advance!