Question Adding RAM to slots 3 & 4 = no BIOS

Mar 5, 2019
10
0
10
I bought extra RAM for my motherboard and it appears that putting any of the sticks in slots 3 & 4 (2 furthest from CPU) will prevent me from reaching BIOS.
the two sticks i already had installed were
Corsair Vengeance DDR4 8GB 3000Mhz
The new sticks are
Corsair Vengeance DDR4 8GB 3200Mhz

MY SPECS
specs:



OS Name Microsoft Windows 10 Home



Version 10.0.17763 Build 17763



Other OS Description Not Available



OS Manufacturer Microsoft Corporation



System Name PR3D4T0R



System Manufacturer System manufacturer



System Model System Product Name



System Type x64-based PC



System SKU SKU



Processor Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz, 4001 Mhz, 4 Core(s), 8 Logical Processor(s)



BIOS Version/Date American Megatrends Inc. 2202, 9/19/2016



SMBIOS Version 3.0



Embedded Controller Version 255.255



BIOS Mode UEFI



BaseBoard Manufacturer ASUSTeK COMPUTER INC.



BaseBoard Product Z170-A



BaseBoard Version Rev 1.xx



Platform Role Desktop



Secure Boot State On



PCR7 Configuration Binding Not Possible



Windows Directory C:\\WINDOWS



System Directory C:\\WINDOWS\\system32



Boot Device \\Device\\HarddiskVolume2



Locale United States



Hardware Abstraction Layer Version = "10.0.17763.194"



User Name PR3D4T0R\\Degenerate94



Time Zone Tokyo Standard Time



Installed Physical Memory (RAM) 16.0 GB



Total Physical Memory 15.9 GB



Available Physical Memory 9.24 GB



Total Virtual Memory 18.9 GB



Available Virtual Memory 4.81 GB



Page File Space 3.00 GB



Page File C:\\pagefile.sys



Kernel DMA Protection Off



Virtualization-based security Not enabled



Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and device is not InstantGo, Un-allowed DMA capable bus/device(s) detected, TPM is not usable



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
 
Memory is guaranteed in the form sold. Other combinations you decide to make have no guarantee to be compatible together. You can do your own compatibility testing with no guarantees.

Workarounds to get extra memory to work include:
lower memory clock speed
relax DRAM timings
increase DRAM voltage
 
Mar 5, 2019
10
0
10
Memory is guaranteed in the form sold. Other combinations you decide to make have no guarantee to be compatible together. You can do your own compatibility testing with no guarantees.

Workarounds to get extra memory to work include:
lower memory clock speed
relax DRAM timings
increase DRAM voltage
I have no idea what i’m doing as far as timing and voltage...
 
Ram is sold in kits for a reason.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
The internal workings are designed for the capacity of the kit.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Some motherboards, can be very sensitive to this.
This is more difficult when more sticks are involved.

The best I can suggest is to install two working sticks and get into the bios.
Set the speed to default or 2400.
Increase the ram voltage above the voltage you see. It is probably at 1.20 or 1.35v now.
Increase that by .05 and verify that that works.
Then install the second kit and see how you do.

You can contact Corsair help, they may be able to suggest something.
If all else fails return what you can and buy a supported 2 x 16gb kit.
 

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