F3-12800CL9D-4GBRL x 2 = 8GB in an old DFI LP UT X48 T3RS

[NWakE]

Model of the motherboard: DFI LPA UT X48 T3RS
BIOS: 8/29
Model of the memory: 2 Kits of: F3-12800CL9D-4GBRL - Total: 4x2GB
Model of the CPU: DFI Lanparty UT X48 T3RS

What is the problem?

No Boot with 2 kits!!!

Trying to upgrade my old system to 8GB I couldn't find another kit of my old RAM: F3-12800CL7D-4GBPI and decided to by two kits of F3-12800CL9D-4GBRL... but I can't boot with all 4 sticks on.

My changes in bios where: Dram voltage, the timmings: 9,9,9,25 and Comand rate to 2N.

My BIOS Settings:

DFI UT X48-T3RS LanParty

CPU Feature
-----------
- Thermal Management Control: Disabled
- PPM(EIST) Mode: Disabled
- Limit CPUID MaxVal: Disabled
- CIE Function: Disabled
- Execute Disable Bit: Disabled
- Virtualization Technology: Disabled
- Core Multi-Processing: Enabled

Genie Main menu
---------------
Exist Setup Shutdown: Mode 2
Shutdown after AC Loss: Disabled
O.C. Fail retry Counter: 0
CPU Clock Ratio: 10x
CPU N/2 ratio: Disabled
Target CPU Clock: 3333MHz
CPU Clock: 400MHz
Boot Up Clock: Auto
CPU Clock Amplitude: 800mV
CPU Clock0 Skew: 0ps
CPU Clock1 Skew: 0ps
DRAM Speed: Auto
Target DRAM SpeedDR3 1333
PCIE Clock: 100mhz
PCIE Slot Config: 1X 1X

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled

Voltage Settings
----------------
CPU VID Control: Auto 1.2200V
CPU VID Special Add Limit: Enabled
CPU VID Special Add: Auto
DRAM Voltage Control: 1.510V
SB Core/CPU PLL Voltage: 1.510V
NB Core Voltage: 1.291V
CPU VTT Voltage: 1.100V
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
x MCH RON Offset Value: 00
x MCH RTT Offset Value: 00
x MCH Slew Rate Offset Value: 00
x MCH VREF 1 Value
x MCH VREF 2 Value
x MCH VREF 3 Value
GTL REF Voltage Control: Disable
x CPU GTL1/3 REF Volt: 113
x CPU GTL 0/2 REF Volt: 100
x North Bridge GTL REF Volt: 100

CPU Core Voltage: 1.20V
DRAM Voltage: 1.50V
NB Core Voltage: 1.32V
CPU VTT Voltage: 1.10V

DRAM Timing
-----------
- Enhance Data transmitting: AUTO
- Enhance Addressing: AUTO
- T2 Dispatch: Auto


Clock Setting Fine Delay
------------------------
CAS Latency Time (tCL): 9
RAS# to CAS# Delay (tRCD): 9
RAS# Precharge (tRP): 9
Precharge Delay (tRAS): 25
All Precharge to Act: AUTO
REF to ACT Delay (tRFC): AUTO
Performance LVL (Read Delay): AUTO
Read delay phase adjust: Press Enter
MCH ODT Latency: AUTO
Write to PRE Delay (tWR): AUTO
Rank Write to Read (tWTR): AUTO
ACT to ACT Delay (tRRD): AUTO
Read to Write Delay (tRDWR): AUTO
Ranks Write to Write (tWRWR): AUTO
Ranks Read to Read (tRDRD): AUTO
Ranks Write to Read (tWRRD): AUTO
Read CAS# Precharge (tRTP): AUTO
ALL PRE to Refresh: AUTO

***DRAM CLK Driving Strength: Level 4
***DRAM Data Driving Strength: Level 7
***Ch1 DLL Default Skew Model: Model 4
***Ch2 DLL Default Skew Model: Model 4

Fine Delay Step Degree: 5ps

Ch1 Clock Crossing Setting: AUTO
- DIMM 1 Clock fine delay: Current 489ps
- DIMM 2 Clock fine delay: Current 489ps
- DIMM 2 Control Fine Delay: Current 434ps
- DIMM 1 Control Fine Delay: Current 473ps
- Ch 1 Command fine delay: Current 560ps

Ch2 Clock Crossing Setting: AUTO
- DIMM 3 Clock fine delay: Current 686ps
- DIMM 4 Clock fine delay: Current 686ps
- DIMM 4 Control Fine Delay: Current 607ps
- DIMM 3 Control Fine Delay: Current 654ps
- Ch 2 Command fine delay: Current 693ps

Ch1Ch2 CommonClock Setting: Auto

Ch1 RDCAS GNT-Chip Delay: Auto
Ch1 WRCAS GNT-Chip Delay: Auto
Ch1 Command to CS Delay: Auto

Ch2 RDCAS GNT-Chip Delay: Auto
Ch2 WRCAS GNT-Chip Delay: Auto
Ch2 Command to CS Delay: Auto

Common CMD to CS Delay: 2N

*** This parameters where very important to Boot my old RAM: F3-12800CL7D-4GBPI
I Tried diferentes config here with advise of a DFI PDF HElp on Genie bios:

Recomended fine delay settings for PC3 12800 and 14400

Micro D9 chips:
3/8/3/3, 3/8/4/4 and 4/7/4/4(With this setting and two sticks its ok)

Samsung chips:
3/8/5/5, 3/8/6/6 and 4/6/7/7

Thanks for any advice!

[Tradesman]

Any time you mix two or more sets of DRAM it can be problematic (even of the same model), here you might try either 9-9-9-24 1600 or 8-8-8-24 1333, with both options set Command Rate to 2T, raise DRAM voltage to 1.55 and NB voltage to 1.4