Rig only recognizing 5/6 gpus

I'm only getting 5/6 gpuS working. I've checked all hardware including the risers the cards etc. device manager recognizes 5. 6xgpu mod recognizes 5.

Here are my bios and system settings. Please help!

System Information report written at: 04/24/17 16:52:33
System Name: SPARTAN-01
[System Summary]

Item Value
OS Name Microsoft Windows 10 Pro
Version 10.0.14393 Build 14393
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name SPARTAN-01
System Manufacturer To Be Filled By O.E.M.
System Model To Be Filled By O.E.M.
System Type x64-based PC
System SKU To Be Filled By O.E.M.
Processor Intel(R) Core(TM) i3-4160 CPU @ 3.60GHz, 3600 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. P1.80, 7/21/2014
SMBIOS Version 2.7
Embedded Controller Version 255.255
BIOS Mode Legacy
BaseBoard Manufacturer ASRock
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Desktop
Secure Boot State Unsupported
PCR7 Configuration Binding Not Possible
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.14393.206"
User Name Not Available
Time Zone Central Daylight Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.94 GB
Available Physical Memory 5.76 GB
Total Virtual Memory 23.6 GB
Available Virtual Memory 21.3 GB
Page File Space 15.6 GB
Page File C:\pagefile.sys
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware Yes
Hyper-V - Data Execution Protection Yes

[Hardware Resources]

[Conflicts/Sharing]

Resource Device
I/O Port 0x00000000-0x00000CF7 PCI Express Root Complex
I/O Port 0x00000000-0x00000CF7 Direct memory access controller

I/O Port 0x000003C0-0x000003DF AMD Radeon R9 200 Series
I/O Port 0x000003C0-0x000003DF PCI-to-PCI Bridge

I/O Port 0x00000070-0x00000070 Motherboard resources
I/O Port 0x00000070-0x00000070 System CMOS/real time clock

I/O Port 0x00000065-0x00000065 Motherboard resources
I/O Port 0x00000065-0x00000065 Motherboard resources

I/O Port 0x00009000-0x000090FF Realtek PCIe GBE Family Controller
I/O Port 0x00009000-0x000090FF PCI-to-PCI Bridge

I/O Port 0x000004D0-0x000004D1 Programmable interrupt controller
I/O Port 0x000004D0-0x000004D1 Motherboard resources

Memory Address 0xF0200000-0xF0203FFF Realtek PCIe GBE Family Controller
Memory Address 0xF0200000-0xF0203FFF PCI-to-PCI Bridge

Memory Address 0x80000000-0x8FFFFFFF AMD Radeon R9 200 Series
Memory Address 0x80000000-0x8FFFFFFF PCI-to-PCI Bridge

I/O Port 0x0000E000-0x0000E0FF AMD Radeon R9 200 Series
I/O Port 0x0000E000-0x0000E0FF PCI-to-PCI Bridge

Memory Address 0xFF000000-0xFFFFFFFF Legacy device
Memory Address 0xFF000000-0xFFFFFFFF Motherboard resources

IRQ 16 High Definition Audio Bus
IRQ 16 Intel(R) 8 Series/C220 Series USB EHCI #2 - 8C2D

IRQ 17 Realtek PCIe GBE Family Controller
IRQ 17 High Definition Audio Bus
IRQ 17 High Definition Audio Bus

Memory Address 0xE0000000-0xEFFFFFFF AMD Radeon R9 200 Series
Memory Address 0xE0000000-0xEFFFFFFF PCI-to-PCI Bridge

Memory Address 0xC0000000-0xCFFFFFFF AMD Radeon R9 200 Series
Memory Address 0xC0000000-0xCFFFFFFF PCI-to-PCI Bridge

Memory Address 0xA0000-0xBFFFF AMD Radeon R9 200 Series
Memory Address 0xA0000-0xBFFFF PCI Express Root Complex
Memory Address 0xA0000-0xBFFFF PCI-to-PCI Bridge

Memory Address 0x60000000-0xFEAFFFFF PCI Express Root Complex
Memory Address 0x60000000-0xFEAFFFFF AMD Radeon R9 200 Series
Memory Address 0x60000000-0xFEAFFFFF PCI-to-PCI Bridge

I/O Port 0x000003B0-0x000003BB AMD Radeon R9 200 Series
I/O Port 0x000003B0-0x000003BB PCI-to-PCI Bridge

Memory Address 0xA0000000-0xAFFFFFFF AMD Radeon R9 200 Series
Memory Address 0xA0000000-0xAFFFFFFF PCI-to-PCI Bridge

I/O Port 0x00000080-0x00000080 Motherboard resources
I/O Port 0x00000080-0x00000080 Motherboard resources

I/O Port 0x0000FFFF-0x0000FFFF Motherboard resources
I/O Port 0x0000FFFF-0x0000FFFF Motherboard resources
I/O Port 0x0000FFFF-0x0000FFFF Motherboard resources

what drivers u using?