Maximus XII speed issues! Unable to run XMP or DDR 3600

[bwana]

cpu 10700k

Sticker on purchased ram says
F4-3600C16-32GTZN
DDR4-3600 16gb x 2
16-16-16-36 1.35v

Thaiphopon data on the Ram

Module Manufacturer: G.Skill 
Module Part Number: F4-3600C16-16GTZN 
Module Series: Trident Z Neo 
DRAM Manufacturer: Samsung 
DRAM Components: K4A8G085WB-BCPB 
DRAM Die Revision / Process Node: B / 20 nm 

                                              XMP1                                XMP2
Speed Grade:                                    DDR4-3604                           N/A 
DRAM Clock Frequency:                           1802 MHz                            N/A 
Module VDD Voltage Level:                       1.35 V                              N/A 
Minimum DRAM Cycle Time (tCK):                  0.555 ns                            N/A 
CAS Latencies Supported:                        16T                                 N/A 
CAS Latency Time (tAA):                         16T                                 N/A 
RAS# to CAS# Delay Time (tRCD):                 16T                                 N/A 
Row Precharge Delay Time (tRP):                 16T                                 N/A 
Active to Precharge Delay Time (tRAS):          36T                                 N/A 
Active to Active/Refresh Delay Time (tRC):      52T                                 N/A 
Four Activate Window Delay Time (tFAW):         44T                                 N/A 
Short Activate to Activate Delay Time (tRRD_S): 4T                                  N/A 
Long Activate to Activate Delay Time (tRRD_L):  9T                                  N/A 
Normal Refresh Recovery Delay Time (tRFC1):     631T                                N/A 
2x mode Refresh Recovery Delay Time (tRFC2):    469T                                N/A 
4x mode Refresh Recovery Delay Time (tRFC4):    289T                                N/A 


1.35v @ 1801 MHz  16-16-16-36  (CL-RCD-RP-RAS) / 52-631-469-289-9-4-44  (RC-RFC1-RFC2-RFC4-RRDL-RRDS-FAW)

DRAM Timing Parameters Fine Timebase:                      .001 ns 
Medium Timebase:                                           0.125 ns 
CAS Latencies Supported:                                   10T, 11T, 12T, 13T,14T, 15T, 16T 
Minimum Clock Cycle Time (tCK min):                        0.938 ns (1066.10 MHz) 
Maximum Clock Cycle Time (tCK max):                        1.500 ns (666.67 MHz) 
CAS# Latency Time (tAA min):                               13.750 ns 
RAS# to CAS# Delay Time (tRCD min):                        13.750 ns 
Row Precharge Delay Time (tRP min):                        13.750 ns 
Active to Precharge Delay Time (tRAS min):                 33.000 ns 
Act to Act/Refresh Delay Time (tRC min):                   46.750 ns 
Normal Refresh Recovery Delay Time (tRFC1 min):            350.000 ns 
2x mode Refresh Recovery Delay Time (tRFC2 min):           260.000 ns 
4x mode Refresh Recovery Delay Time (tRFC4 min):           160.000 ns 
Short Row Active to Row Active Delay (tRRD_S min):         3.700 ns 
Long Row Active to Row Active Delay (tRRD_L min):          5.300 ns 
Long CAS to CAS Delay Time (tCCD_L min):                   5.625 ns 
Four Active Windows Delay (tFAW min):                      21.000 ns 
Maximum Active Window (tMAW):                              8192*tREFI 
Maximum Activate Count (MAC):                              Unlimited MAC 
DRAM VDD 1.20 V operable/endurant:                         Yes/Yes 
Supply Voltage (VDD), Min / Typical / Max:                 1.16V / 1.20V / 1.26V 
Activation Supply Voltage (VPP), Min / Typical / Max:      2.41V / 2.50V / 2.75V 
Termination Voltage (VTT), Min / Typical / Max:            0.565V / 0.605V / 0.640V

Board would not boot on Auto. However if set first to XMP2 and then switch back to auto without restart


stock HWinfo DRAM 1.2v CPU VCCIO 0.96v PCH core 1.048 vIN 0.6 CPU VCCSA 1.04v
14-14-14-34
AIDA Read 33858 Write 33192 Copy 32980 Latency 60.7ns

16-19-39 1.35v 2666 boots
16-16-38 1.35v 3000 no boot
16-19-39 1.45v 3000 boots
AIDA Read 44560 Write 45562 Copy 42214 Latency 57.4ns

16-19-39 1.5v 3200 no boot
xtreme tweaking enabled
16-19-39 1.55v 1.22v 3200 no boot

this was with bios 707

[bwana]

couldnt go faster but could get tighter
12-12-33 1.45v ddr3000 tRFC 280 tFAW 30
AIDA Read 46697 Write 46389 Copy 44466 Latency 48.2ns

[bwana]

Solved.
I moved the modules to slots A2 and B2 even though the board has A1 and B1 marked as primary
16-16-16-3800 tRFC 280 tFAW 30 VCCIO 1.312 VCCSA 1.296

AIDA Read 56081 Write 58417 Copy 53318 Latency 44.5ns

up to
17-17-17-38 ddr4266 vDIMM 1.45
AIDA Read 61262 Write 64087 Copy 58730 Latency 41.6ns

It would be nice if I could edit the title to include the word [SOLVED]
Hey moderator?

[Braegnok]

Solved.
I moved the modules to slots A2 and B2 even though the board has A1 and B1 marked as primary
16-16-16-3800 tRFC 280 tFAW 30 VCCIO 1.312 VCCSA 1.296

AIDA Read 56081 Write 58417 Copy 53318 Latency 44.5ns

up to
17-17-17-38 ddr4266 vDIMM 1.45
AIDA Read 61262 Write 64087 Copy 58730 Latency 41.6ns

It would be nice if I could edit the title to include the word [SOLVED]
Hey moderator?

Glad you figured it out, slots A2 and B2 are indeed correct slot configuration for two DIMMs. Please see Chapter 1 page 5 in your motherboard manual.

[bwana]

Interestingly I was able to run these sticks at 12-12-12-33 up to 3000. Latency was great but speed not so much.

[alotofentropy]

Can we feedback that the manual, whilst demonstrating that the ram needs to go into A2 and B2 over A1 and B1, it is not immediately obvious and could be better communicated for future manuals. It took me some time to interpret the manual.Â*Â*

[Daisy81]

I feel like such a dolt after reading this. I had my sticks in A1 and B1 also. I was able to get it to boot at 3200MHz but no matter what 3300MHz would not post at all no matter what. I saw this thread and then looked saw I had them in the wrong slots and moved them. Now my Ballistix DDR4-3600 is running at 3700MHz.
https://valid.x86.fr/db35l5

Thank you!