Installed 32GB Corsair Dominator Platinum DDR4 3000Mhz RAM in Sabertooth TUF X99

[bsodmike]

...and it booted into the BIOS, enabled XMP, it booted back but the 'mem OK' red LED was lit up.  Had to push the little SMD spst switch, back in the BIOS.

 

Only got it running so far with XMP off, 2666MHz.

 

Running a pretty old BIOS I admit, but hey, anyone else had anything similar to report?

[vorticalbox]

Quote

8 x DIMM, Max. 64GB, DDR4 2400/2133 MHz Non-ECC, Un-buffered Memory

It only officially supports 2400/2133 so it's no wonder it didn't run at 3000.

 

https://www.asus.com/Motherboards/SABERTOOTH_X99/specifications/

[bsodmike]

Thanks, but I checked the manual (See page 14) and 3000 MHz may be supported but as an OC (of course)

http://dlcdnet.asus.com/pub/ASUS/mb/LGA2011/SABERTOOTH-X99/E10096_SABERTOOTH_X99_for_web_only.pdf?_ga=1.102371970.2039723573.1478438476

[bsodmike]

I also got a new Z170 box (ROG Maximum Formula VIII), inside which I'm running 32GB Ballistix elite (one at the top)

 

[bsodmike]

Well this is handy, http://www.kitguru.net/components/motherboard/luke-hill/asus-tuf-sabertooth-x99-motherboard-review/11/

 

I had my DRAM voltage locked to 1.30v and that would explain why the XMP wouldn't have applied properly.  Will give it another try.

[bsodmike]

18 hours ago, bsodmike said:

Well this is handy, http://www.kitguru.net/components/motherboard/luke-hill/asus-tuf-sabertooth-x99-motherboard-review/11/

 

I had my DRAM voltage locked to 1.30v and that would explain why the XMP wouldn't have applied properly.  Will give it another try.

Sadly no luck.  Tried even setting 1.35Vdc on the DIMM voltage.  No dice.

[bsodmike]

I wanted to follow an update to this issue.  Earlier, I had the stock UEFI 3004.  Since then, Asus has posted several updates and UEFI 3505 specifically lists 'Improved DRAM compatibility'.

 

Today, I flashed UEFI 3701 and chose the XMP profile.  It instantly chose 32x 125MHz Bclk giving a 4Ghz clock.

I dialed in 1.35vdc for the DDR Voltage (for each channel), 1.25vdc for CPU Core voltage and the XMP profile is DDR3000 MT/s at 15-17-17-35.

 

First boot, success.  Cinebench ran without any issues; testing it further now.  Noticeable jump in CPU temps though, with the H115i pump running in 'Quiet' mode. 

[bsodmike]

Hi all - I've noticed a slight 'issue'; when I enable XMP on my Corsair Dominator Plat RAM, it auto-selects Bclk as 125Mhz and CPU with 'sync all cores' at x32 (for 4GHz on the 6850K).

 

When I reboot in this config, CPUZ correctly reports my RAM is at 3000MHz

Processors Information
-------------------------------------------------------------------------

Processor 1			ID = 0
	Number of cores		6 (max 6)
	Number of threads	12 (max 12)
	Name			Intel Core i7 6850K
	Codename		Broadwell-E/EP
	Specification		Intel(R) Core(TM) i7-6850K CPU @ 3.60GHz
	Package (platform ID)	Socket 2011 LGA (0x2)
	CPUID			6.F.1
	Extended CPUID		6.4F
	Core Stepping		
	Technology		14 nm
	TDP Limit		140.0 Watts
	Tjmax			100.0 �C
	Core Speed		3999.9 MHz
	Multiplier x Bus Speed	32.0 x 125.0 MHz
	Stock frequency		3600 MHz
	Instructions sets	MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX, AVX2, FMA3, TSX
	L1 Data cache		6 x 32 KBytes, 8-way set associative, 64-byte line size
	L1 Instruction cache	6 x 32 KBytes, 8-way set associative, 64-byte line size
	L2 cache		6 x 256 KBytes, 8-way set associative, 64-byte line size
	L3 cache		15 MBytes, 20-way set associative, 64-byte line size
	FID/VID Control		yes


	Turbo Mode		supported, enabled
	Max non-turbo ratio	32x
	Max turbo ratio		32x
	Max efficiency ratio	12x
	Min Power		46 Watts
	O/C bins		unlimited
	Ratio 1 core		32x
	Ratio 2 cores		32x
	Ratio 3 cores		32x
	Ratio 4 cores		32x
	Ratio 5 cores		32x
	Ratio 6 cores		32x
	Ratio 7 cores		37x
	Ratio 8 cores		37x
	Ratio 9 cores		37x
	Ratio 10 cores		37x
	Ratio 11 cores		37x
	Ratio 12 cores		37x
	Ratio 13 cores		37x
	Ratio 14 cores		37x
	Ratio 15 cores		37x
	Ratio 16 cores		37x
	Ratio 17 cores		37x
	Ratio 18 cores		37x
	Ratio 19 cores		37x
	Ratio 20 cores		37x
	Ratio 21 cores		37x
	Ratio 22 cores		37x
	Ratio 23 cores		37x
	Ratio 24 cores		37x
	TSC			3999.8 MHz
	APERF			4000.0 MHz
	MPERF			3999.8 MHz
	IA Voltage Mode		Override
	IA Voltage Target	1280 mV
	IA Voltage Offset	0 mV
	GT Voltage Mode		PCU adaptive
	GT Voltage Offset	0 mV
	LLC/Ring Voltage Mode	Override
	LLC/Ring Voltage Target	1229 mV
	LLC/Ring Voltage Offset	0 mV
	Agent Voltage Mode	PCU adaptive
	Agent Voltage Offset	358 mV

	Temperature 0		38 degC (100 degF) (Core #0)
	Temperature 1		37 degC (98 degF) (Core #1)
	Temperature 2		39 degC (102 degF) (Core #2)
	Temperature 3		38 degC (100 degF) (Core #3)
	Temperature 4		38 degC (100 degF) (Core #4)
	Temperature 5		40 degC (104 degF) (Core #5)
	Temperature 6		54 degC (129 degF) (Package)
	Voltage 0		1.25 Volts (VID)
	Voltage 1		1.28 Volts (IA)
	Voltage 2		+0.00 Volts (GT Offset)
	Voltage 3		1.23 Volts (LLC/Ring)
	Voltage 4		+0.36 Volts (System Agent Offset)
	Power 0			0.75 W (Package)
	Power 1			n.a. (IA Cores)
	Power 2			n.a. (Uncore)
	Power 3			n.a. (DRAM)
	Clock Speed 0		3999.93 MHz (Core #0)
	Clock Speed 1		3999.93 MHz (Core #1)
	Clock Speed 2		3999.93 MHz (Core #2)
	Clock Speed 3		3999.93 MHz (Core #3)
	Clock Speed 4		3999.93 MHz (Core #4)
	Clock Speed 5		3999.93 MHz (Core #5)

Chipset
-------------------------------------------------------------------------

Northbridge			Intel Broadwell-E rev. 01
Southbridge			Intel X99 rev. 05
Graphic Interface		PCI-Express
PCI-E Link Width		x16
PCI-E Max Link Width		x16
Memory Type			DDR4
Memory Size			32 GBytes
Channels			Quad
Memory Frequency		1500.0 MHz (1:18)
CAS# latency (CL)		15.0
RAS# to CAS# delay (tRCD)	17
RAS# Precharge (tRP)		17
Cycle Time (tRAS)		35
Row Refresh Cycle Time (tRFC)	390
Command Rate (CR)		2T
tCCD				4
tCCD_L				6
tCCD_WR				4
tCCD_WR_L			6


Memory SPD
-------------------------------------------------------------------------
DIMM #                1
    SMBus address        0x50
    Memory type        DDR4
    Module format        UDIMM
    Manufacturer (ID)    Corsair (7F7F9E00000000000000)
    Size            8192 MBytes
    Max bandwidth        DDR4-2132 (1066 MHz)
    Part number        CMD32GX4M4C3000C15
    Nominal Voltage        1.20 Volts
    EPP            no
    XMP            yes
    XMP revision        2.0
    AMP            no
JEDEC timings table        CL-tRCD-tRP-tRAS-tRC @ frequency
    JEDEC #1        9.0-9-9-22-31 @ 666 MHz
    JEDEC #2        10.0-10-10-25-35 @ 740 MHz
    JEDEC #3        11.0-11-11-27-38 @ 814 MHz
    JEDEC #4        12.0-12-12-30-42 @ 888 MHz
    JEDEC #5        13.0-13-13-32-45 @ 962 MHz
    JEDEC #6        14.0-14-14-35-49 @ 1037 MHz
    JEDEC #7        15.0-15-15-36-50 @ 1066 MHz
    JEDEC #8        16.0-15-15-36-50 @ 1066 MHz
XMP profile            XMP-2998
    Specification        DDR4-2998
    Voltage level        1.350 Volts
    Min Cycle time        0.667 ns (1499 MHz)
    Max CL            15.0
    Min tRP            11.33 ns
    Min tRCD        11.33 ns
    Min tRAS        23.18 ns
    Min tRC            34.68 ns
    Min tRRD        4.00 ns
XMP timings table        CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
    XMP #1            9.0-11-11-21-32-n.a @ 899 MHz (1.350 Volts)
    XMP #2            10.0-12-12-24-35-n.a @ 1000 MHz (1.350 Volts)
    XMP #3            11.0-13-13-26-39-n.a @ 1100 MHz (1.350 Volts)
    XMP #4            12.0-14-14-28-42-n.a @ 1200 MHz (1.350 Volts)
    XMP #5            13.0-15-15-31-46-n.a @ 1300 MHz (1.350 Volts)
    XMP #6            14.0-16-16-33-49-n.a @ 1400 MHz (1.350 Volts)
    XMP #7            15.0-17-17-35-52-n.a @ 1499 MHz (1.350 Volts)
    XMP #8            16.0-17-17-35-52-n.a @ 1499 MHz (1.350 Volts)
    XMP #9            17.0-17-17-35-52-n.a @ 1499 MHz (1.350 Volts)
    XMP #10            18.0-17-17-35-52-n.a @ 1499 MHz (1.350 Volts)
    XMP #11            19.0-17-17-35-52-n.a @ 1499 MHz (1.350 Volts)
    XMP #12            20.0-17-17-35-52-n.a @ 1499 MHz (1.350 Volts)

See attached.
 

My only custom UEFI settings are:

• CPU Vcore set to 1.25vdc
• DDR4 RAM voltage set to 1.35vdc (for each channel)
• Choose XMP for RAM kit.  This sets Bclk to 125Mhz, CPU 'sync all cores' to 32.

If I force Bclk to 100Mhz, and CPU clock to x40, with XMP enabled to 3000MT/s, on reboot, my RAM is running at 2400Mhz.