Do we need IE code to clear customs?

Hi all,

Kindly help me in bios mod my rx 580 msi armor 4gb.

Can any one suggest me best oc settings for
RX 570 gaming x and rx 580 armor 4gb
Also mention oc settings if they are mod.

Thanks in advance

I recently started mining.
My first rig configuration is below
1.  MSI 170A GAMING M7
2. intel g4400 cpu
3. CORSAIR RM 1000X PSU
4. SANDICK 120 GP SSD
5. KINGSTON 4GB DDR4
6. MSI RX 570 GAMING X
7. OS WIN 10 - VIRTUAL MEMORY 4GB TO 16GB SET
8. BIOS update Version 7976v1I ;
Settings>Advanced>PCI subsystem Setting
PEG 0 and PEG 1 set to Gen1
Above 4G Decoding set to Enabled
Windows 8.1 / 10 = "Enabled"
Windows 7 = "Disabled"
MSI Fast Boot = "Disabled"
Fast Boot = "Disabled"

I have 5 rx 570.

WHEN I RUN RIG with 2 cards it GETS FREEZE AFTER 5 MIN.

Kindly help me.